LHM - Level A

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2nd Edition
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LEVEL A

Lighthouse Math

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Lighthouse Math level A • ISBN 978-1-955773-00-3

Mechi Weizer Curriculum Advisor Elementary School Principal

Issac Flores Illustration Director

No part of this publication may be reproduced, stored in a retrieval system, stored in a database and/or published in any form or by any means, electronic, mechanical, photocopying, recording or otherwise, without the prior written permission of the publisher. To obtain permission to use portions of material from this publication, please contact Lighthouse curriculum.

Content developed in collaboration with The Reimagined Classroom

Contact Lighthouse curriculum: By calling: 718.285.7100, or emailing: info@lighthousecurriculum.com For more information visit www.lighthousecurriculum.com

Introduction and overview of skills at the beginning of each chapter

Vocabulary words with checkboxes students can check o as they go through the lessons

Clearly coded lessons: blue for the lesson page, red for the exercise page

Let’s learn! helps introduce the concept

Try it together! provides guided practice as a class

Practice provides plenty of problems to practice the skill

Tabs on the topof each page allow you to find chapters and lessons easily

Teacher notes give tips and ideas to guide teachers during the lesson

Icons provide clear, visual instructions to help students understand the directions

Hi, my name is Flash!

Welcome to the Lighthouse Math Curriculum!

Here is a list of items that will help as you navigate through the book!

The Microphone directs the teacher to say a specific instruction

Clear, worked out examples

Bonus problems for enrichment and practice

Review for every chapter Assessment provided for every chapter

Bonus! count more less Trace Circle Circle Color Cross out Write
2 + 5 7

A better way to teach

Dear Educator,

Welcome to the Lighthouse Math Curriculum!

What makes our curriculum so unique? Lighthouse Math uses a sca olded approach to learning and mastering Math skills. By providing a solid foundation, students can retain more information and prepare for the next level of skills.

Instead of separate workbooks and textbooks, students have everything they need built into one place: a soft covered book containing 14 chapters, comprising of eight lessons per chapter, each lesson containing review, new skills, and practice. All lessons include step-by-step instructions for clarity, giving all teachers— neophyte as well as seasoned—the tools for success.

The books are custom illustrated, providing a vibrant learning experience. They are formatted in a way that each grade level can be completed successfully at the culmination of the schoolyear. Lighthouse Math gives teachers the tools they need to teach and gives students everything they need to learn.

We at Lighthouse CurriculumTM are committed to providing support and guidance to our educators. We look forward to hearing from you and are available to answer any questions that you may have.

Sincerely,

Introducing Vertical Addition 1. 2. 3.

+ +

We can add 2 + 1 = __ like this too. Write how many. 1 + 1 3 + 3

= =

2 + 0 5 + 3

+ 3 + 2 + +

= = =

Teacher Notes

1 + 3

+ +

= =

1 + 2 2 + 2 4 + 2

+ +

= =

can write the number below the line. We can also put images next to each addend and count up how many in all. + =

Name © Lighthouse Curriculum. Copying strictly prohibited. Let’s learn! 46 Level A Chapter 1 Lesson 4 | Lighthouse Math Try it together!
Explain that we can add using this format which is called vertical addition. When we line up the numbers vertically, we 2 + 1 33
h Table of Contents | Lighthouse Math REVIEW 1 Practice Counting, Adding and Subtracting with Numbers 0 to 5 Review: Sorting and Counting Objects from 0 to 10...................................................................... 4 Review: Addition of Numbers 0 to 5 with Pictures........................................................................... 6 Review: Addition of Numbers 0 to 5 with a Number Line..................................................... 8 Review: Addition of Numbers 0 to 5.................................................................................................................10 Review: Subtraction of Numbers 0 to 5 with Pictures...............................................................12 Review: Subtraction of Numbers 0 to 5 with a Number Line........................................ 14 Review: Subtraction of Numbers 0 to 5.........................................................................................................16 Review: Addition and Subtraction Story Problems with Numbers 0 to 5................................................................................................................18 REVIEW 2 Sequencing, Counting, and Patterns with Numbers 0 to 10 Review: Putting Things in Order............................................................................................................................... 22 Review: Counting on a Number Line 0 to 10........................................................................................ 24 Review: Understanding Numerical Sequence from 0-10.................................................... 26 Review: Patterns with Numbers 1 to 10.......................................................................................................... 28 Review: Patterns with Numbers 1 to 10 Reversed Order on the Number Line.................................................................................................................................30 Review: Understanding One More and One Less.......................................................................... 32 Review: Understanding More and Less with Numbers 0 Through 10................ 34 Review: Skip Counting on a Number Line................................................................................................. 36 Table of Contents
Lighthouse Math | Table of Contents i CHAPTER 1 Adding Within 0 to 10 Adding on. +1, +2, +3, +4 Sums Through 10.................................................................................................. 40 Sums Through 10 Using 2 Numbers.................................................................................................................... 42 Making Sums with Pennies............................................................................................................................................. 44 Introducing Vertical Addition...................................................................................................................................... 46 Sums Through 10 Using 3 Numbers.................................................................................................................... 48 Introducing the Commutative Property of Addition................................................................... 50 Vertical Addition Sums Through 10..................................................................................................................... 52 Mixed Review Sums Through 10............................................................................................................................ 54 CHAPTER 2 Subtracting Within 0 to 10 Subtraction with Numbers from 0 to 6 Using Pictures............................................................. 58 Subtraction Patterns with Numbers from 0 to 6............................................................................. 60 Subtraction with Numbers from 0 to 10 Using Pictures.......................................................... 62 Subtraction with Numbers from 0 to 10 Using a Ten Frame.......................................... 64 Subtraction with Numbers from 0 to 10 Using a Number Line.................................... 66 Vertical Subtraction with Numbers from 0 to 10............................................................................ 68 Formal Subtraction with Numbers from 0 to 10..............................................................................70 Mixed Review of Subtraction with Numbers from 0 to 10.................................................72 CHAPTER 3 Count, Compare and Add Numbers 0 to 20 Understanding and Writing Numbers 11, 12, 13, 14, 15.....................................................................76 Understanding and Writing Numbers 16, 17, 18, 19, 20.................................................................. 78 Counting from 0 to 20......................................................................................................................................................... 80 Comparing within 0 to 20 Using Objects and Shapes........................................................... 82 Comparing Numbers 0 to 20 More Than and Equal To....................................................... 84 Putting Things in Order......................................................................................................................................................... 86 Sequencing and Addition with Numbers from 0 to 12............................................................ 88 Addition within 0 to 15 Using Objects and Shapes...................................................................... 90
CHAPTER 4 Addition Strategies Addition within 0 to 20 Using Objects and Shapes..................................................................... 94 Doubles with Numbers from 0 to 20............................................................................................................... 96 Doubles and Doubles Plus One with Numbers from 0 to 20......................................... 98 Adding Ten and Some More................................................................................................................................... 100 Make a Ten to Add with Numbers from 0 to 20......................................................................... 102 The Equal Sign and Balancing Addition Problems with Numbers from 0 to 20.......................................................................................................................................104 True or False Addition Sentences....................................................................................................................... 106 Using Strategies to Add Numbers 0 to 20..........................................................................................108 Using Strategies to Add Numbers 0 to 20.............................................................................................. 110 CHAPTER 5 Relationship Between Addition and Subtraction with Numbers from 0 to 20 Subtraction with Missing Parts from 0 to 20........................................................................................ 112 Related Facts with Numbers from 0 to 20............................................................................................ 114 Using Related Facts to Solve for Missing Parts.................................................................................... 116 Ten Frame Subtraction..................................................................................................................................................................................118 Make a Ten to Subtract with Numbers from 0 to 20............................................................ 120 Doubles Facts with Subtraction of Numbers from 0 to 20............................................. 122 Finding the Missing Part in Subtraction with a Number Line.........................................124 Understanding Subtraction in Story Problems with Numbers 0 to 20 ............. 126 Understanding Subtraction in Word Problems with Numbers 0 to 20............. 28 CHAPTER 6 Putting Numbers 0 to 200 in Sequence, Using Patterns on the Hundred Chart, Making Numbers with Base Ten Blocks, and Comparing 2-digit Numbers The Hundreds Chart.............................................................................................................................................................130 Understanding Numerical Sequence 0 to 200..............................................................................132 Ten More and Ten Less..................................................................................................................................................... 134 Making Groups of Tens and Ones.....................................................................................................................136 Counting with Tens and Ones................................................................................................................................. 138 Comparing Two-Digit Numbers with Tens Rods and Cubes........................................140 Comparing Numbers Using Greater Than, Less Than, Equal to...............................142 Review 144 j Table of Contents | Lighthouse Math
CHAPTER 7 Add Multi-digit Numbers Addition of a Double-Digit and a Single-Digit with Base Ten Blocks..................148 Addition with Double-Digit and Single-Digit Numbers...........................................................150 Add with Multiples of Ten Using Base Ten Blocks..........................................................................152 Addition of Double-Digit Numbers and Multiples of Ten.................................................... 154 Sums Through 200 with Base Ten Blocks...............................................................................................156 Addition Fluency with Numbers Less than 200............................................................................. 158 Sums through 200 Using Vertical Equations....................................................................................... 160 Addition Story Problems with Double-Digit Numbers.............................................................. 162 CHAPTER 8 Subtract Multi-digit Numbers Subtraction of a Double-Digit and a Single-Digit with Base Ten Blocks........ 166 Subtraction of a Double-Digit and a Single-Digit Number............................................... 168 Use Base Ten Blocks to Subtract a Multiple of Ten..................................................................... 170 Subtraction with a Double-Digit Number and Multiples of Ten................................. 172 Subtraction Using Greater Numbers with Di erences Less than 200............. 174 Subtraction Fluency with Di erences Less than 200.............................................................. 176 Vertical Subtraction with Di erences Less than 200.............................................................. 178 Story Problems Using Addition and Subtraction............................................................................ 180 CHAPTER 9 Tell Time to the Hour and Half Hour, Understand Ordinal Numbers, and Answer Questions About Dates on a Calendar Telling Time to the Hour.....................................................................................................................................................184 Telling Time to the Half Hour....................................................................................................................................... 186 Telling Time Using Hour and Minute Hands............................................................................................188 Story Problems with Time............................................................................................................................................. 190 Introducing the Calendar................................................................................................................................................ 192 Using a Calendar in Everyday Settings........................................................................................................194 Ordinal Numbers to 19......................................................................................................................................................... 196 Review 198 Lighthouse Math | Table of Contents k
CHAPTER 10 Length, Measurement, Weight and Temperature Measuring Length with Nonstandard Tools....................................................................................... 202 Ordering Lengths from Least to Greatest............................................................................................ 204 Introducing the Ruler.......................................................................................................................................................... 206 Using a Ruler to Compare Lengths................................................................................................................ 208 Comparing Weight of Objects............................................................................................................................... 210 Introducing and Understanding Units of Weight............................................................................. 212 Introducing and Understanding Temperature..................................................................................214 Length, Weight and Temperature...................................................................................................................... 216 CHAPTER 11 Recognize, Compose and Decompose Two-dimensional and Three-dimensional Shapes and Divide Shapes into Equal Parts or Fractions 2D Shapes: Names, Real World Examples, and Open vs Closed.......................... 220 Vertices and Sides with Defining and Non-defining Attributes on 2D Shapes....................................................................................................... 222 Composing and Decomposing 2D Shapes.......................................................................................... 224 Halves....................................................................................................................................................................................................... 226 Fourths.................................................................................................................................................................................................... 228 3D Shapes: Names and Real World Examples............................................................................... 230 Faces, Vertices and Edges with Defining and Non-defining Attributes on 3D Shapes......................................................................................... 232 Composing and Decomposing 3D Shapes.......................................................................................... 234 CHAPTER 12 Tally Charts, Picture Graphs and Bar Graphs Tally Chart.......................................................................................................................................................................................... 238 Interpreting Data from a Tally Chart............................................................................................................ 240 Picture Graph................................................................................................................................................................................ 242 Interpreting Data from a Picture Graph................................................................................................... 244 Making a Bar Graph........................................................................................................................................................... 246 Interpreting Data from a Bar Graph............................................................................................................. 248 Comparing Data in Graphs...................................................................................................................................... 250 Review 252 l Table of Contents | Lighthouse Math
CHAPTER 13 Coins and Dollars, the Values of Coins, How to Count Them and How to Compare Money Amounts Understanding Basic Units of Money: Coins........................................................................................ 256 Combining Basic Units of Money: Coins.................................................................................................... 258 Adding Basic Units of Money: Coins.............................................................................................................. 260 Subtracting Basic Units of Money: Coins.................................................................................................. 262 Relating Monetary Value Using Basic Units of Money: Coins....................................... 264 Understanding and Counting on to Make One Dollar.......................................................... 266 Combining a Dollar and Coins............................................................................................................................... 268 Review of Monetary Value Using Basic Units of Money: Coins................................ 270 CHAPTER 14 Reviewing Content Learned So Far Review Shapes and Sides........................................................................................................................................... 274 Review Counting, Writing, and Comparing Numbers 0 to 200.............................. 276 Review Sums and Di erences with Numbers from 0 to 20........................................ 278 Review and Extend Numerical Sequences 0 to 200.......................................................... 280 Review and Extend Story Problems Through 200 Using Addition and Subtraction................................................................................. 282 Review Addition and Subtraction 0 to 200....................................................................................... 284 Review of Time and Calendars........................................................................................................................... 286 Review Weight, Length and Temperature........................................................................................... 288 Lighthouse Math | Table of Contents m
Name Chapter 3 Lesson X 2
0 to 10
2
Counting from
with pennies Review 1

In Review 1, we will practice counting, adding and subtracting with numbers 0 to 5.

•Sorting and counting 0 to 10

•Addition: 0 to 5 with pictures and number lines

•Subtraction: 0 to 5 with pictures and number lines

• Vertical and horizontal addition and subtraction with numbers 0 to 5

012345

•Count on to add

•Hop along a number line to count on or count back

•Understand numbers 0 to 5

•Subtract by crossing out pictures

•Draw to solve

Vocabulary Words

3 sort count on add subtract 0, 1, 2, 3, 4, 5 number line hop sum di erence addend vertical horizontal in all left over take away plan solve + -

Let’s learn!

Try it together!

Cross o the animals as you count them. Write how many of each item. 1.

Review: Sorting and Counting Objects from 0 to 10

Cross o the shapes as you count! 4 2 4

Teacher Notes

Explain to students that we can sort objects to count them. Show students how to cross o the circles as you count them. Guide students to cross o the circles as they count on (1...2...3...4). Ask students: How many circles are there? [4] Guide students to cross o the triangles and to count on. Ask students: How many triangles are there? [2]

Name © Lighthouse Curriculum. Copying strictly prohibited.
4 Level A Review 1 Lesson 1 | Lighthouse Math

Circle how many of each animal.

Color the objects as you count them.

Write how many of each item.

Circle which shape had the most.

Lighthouse Math | Level A Review 1 Exercise 1 5
© Lighthouse Curriculum. Copying strictly prohibited.
3 2 2 4 4 3 5 1
Review
1. 2.

Review: Addition of Numbers 0 to 5 with Pictures

Count on!

Count. Write the addends. Solve for the sum.

Teacher Notes

1 1. 2. 3.

+ =

2

4 1

3 3

= += +=

+

Explain to students that addends are the numbers being combined or added. To find each addend, count the amount of each picture. Then, find the sum, or the total in all. To find the sum, guide students to count on or up from the first number instead of counting each individual picture or symbol. Point to the first number and count out loud.

Name © Lighthouse Curriculum. Copying strictly prohibited.
Try it together!
6 Level A Review 1
2 | Lighthouse Math
Let’s learn!
Lesson

Write how many in all.

Draw to solve. Write how many in all.

How many sea creatures are there in all?

Add the and . Write the correct addition sentence.

Lighthouse Math | Level A Review 1 Exercise 2 7
© Lighthouse Curriculum. Copying strictly prohibited.
1 + 2 = 2 + 2 = 5 + 2 = 3 3 + 1 = 1 + 3 = 1 + 4 = 3 + 2 = 2 + 0 = 5 + 0 = 1 + 2 = += 4 1. 4. 7. 2. 5. 8. 3. 6. 9. 10. Review

Let’s learn!

Review: Addition of Numbers 0 to 5 with a Number Line

Hop on the number line to find the sum!

5

Draw hops and write the sum.

= 5

=

=

Teacher Notes

The number line can help us add. Explain to students the steps in using the number line to solve addition problems. Tell students to start by finding the first addend on the number line. Circle this addend on the number line. Next, tell students to hop and count up the amount of the second addend. Finally, tell students to stop on the sum.

Name © Lighthouse Curriculum. Copying strictly prohibited.
8 Level A Review 1 Lesson 3 | Lighthouse Math
Try it together!
0 0 0 0 0 1 1 1 1 1 2 2 2 2 2 3 3 3 3 3 +1+1+1+1 4 4 4 4 4 5 5 5 5 5 1 + 4
2
3
0
4
1 + 2
3
2
=
+
+
=
+
1. 2. 3. 4.

Use the number line. Write the sum.

Draw a line to match. Solve.

Solve for the missing addends. Draw to explain on the number line.

©
4 Lighthouse Math | Level A Review 1 Exercise 3 9
012345
Lighthouse Curriculum. Copying strictly prohibited.
012345
1. 2. 3. 4. 5. 2 + 3 = 1 + 3 = 3 + 1 = 1 + 1 = 4 + 1 = 5 + 0 = 2 + 0 = 2 + 2 = 1 + 2 = 0 + 2 = 1 + 3 = 2 + 3 = 012345 012345 012345 += Review

Review: Addition of Numbers 0 to 5

These both show the same addition problem! 1 + 3 =

1 + 3 44

Write the sum for the horizontal and vertical addition problems.

Teacher Notes

Show students the two dominos, horizontal and vertical. Ask students: What do you notice about these two dominoes? [They are the same just turned] Explain that addition sentences can be written horizontally or vertically as well. Point out that the addends and sum are the same in both problems.

Name © Lighthouse Curriculum. Copying strictly prohibited.
10 Level A Review 1 Lesson 4 | Lighthouse Math
Let’s learn! Try it together!
1
1. 4. 2. 3. + = + = + = + = 415 + + + + 4
5
Lighthouse Math | Level A Review 1 Exercise 4 11
sum.
the sum.
a line to match. + = + = + = 213 + + + 2 1 3 3. 2. 1. 4. 1 + 3 4 2 + 3 1 + 4 3 + 0 1 + 1 1 + 1 = 3 + 2 = 5 + 0 = 1 + 2 = 2 + 2 = 0 + 4 = Review
© Lighthouse Curriculum. Copying strictly prohibited.
Write the
Write
Write the vertical and horizontal addition sentences. Draw

Review: Subtraction of Numbers 0 to 5 with Pictures

Let’s

Subtract and count what is left over! —

4 5

Cross out to subtract. Write the di erence.

2 2

= =

2 3

=

Teacher Notes

Explain to students that they will use pictures to help subtract, or take away. Tell students that subtraction starts with the amount in all. Then they will cross o to show taking away. Finally, they will count what is left over. The leftover amount is the di erence, or answer to a subtraction problem.

Name © Lighthouse Curriculum. Copying strictly prohibited.
12 Level A Review 1 Lesson 5
Math
Try it together!
| Lighthouse
— — —
=
learn!
1. 2. 3.
Lighthouse Math | Level A Review 1 Exercise 5 13
erent
3. Write the di erence. Draw to solve. Write the di erence. 10. 1. 4. 7. 2. 5. 8. 3. 6. 9. 5 — = 3 4 — 2 = 5 — 2 = 1 — 1 = 3 — 1 = 5 — 0 = 4 — 4 = 2 — 1 = 4 — = 3 5 — 3 = 3 — = 3 4 — 0 = Review
© Lighthouse Curriculum. Copying strictly prohibited.
Write di
subtraction sentences to equal

Let’s learn!

0123

—1—1 45

Review: Subtraction of Numbers 0 to 5 with a Number Line

Hop back on the number line to find the di erence!

3 — 2 = 1

Try it together!

Draw hops and write the di erence.

= 2

=

Teacher Notes

The number line can help us to subtract. Explain to students the steps in using the number line to solve subtraction problems. Tell students to start by finding the first number on the number line. Circle this number on the number line. Next, tell students to hop backwards and count the amount of the second number. Finally, tell students to stop on the di erence..

Name © Lighthouse Curriculum. Copying strictly prohibited.
14 Level A Review 1 Lesson 6 | Lighthouse Math
0 0 0 0 1 1 1 1 2 2 2 2 3 3 3 3 4 4 4 4 5 5 5 5 5
3
4
4
3
1
5
2
=
=
1. 2. 3. 4.

Use the number line. Write the di erence.

Write the subtraction sentence and the di erence.

Use the number line. Solve for the mystery number.

Start on 3

Hop back 2.

You’ve landed on me!

What number am I?

Lighthouse Math | Level A Review 1 Exercise 6 15
© Lighthouse Curriculum. Copying strictly prohibited.
012345 012345
3 — 2 = 2 — 1 = 5 — 1 = 1 — 1 = 4 — 1 = 5 — 4 = 3 — 0 = 3 — 1 = 4 — 3 = — = — = — = — = 012345
Review
1. 2. 3. 4. 5. 6. 7.
012345 012345

Let’s learn!

3 — 1 2

Review: Subtraction of Numbers 0 to 5

These both show the same subtraction problem!

Write the horizontal and vertical subtraction sentences. Solve for the di erence.

Teacher Notes

3 — 1 = — =

horizontal

2 422

vertical — — —

= — =

Show students the two ice cream pictures, horizontal and vertical. Explain to students that subtraction problems can be placed horizontal (like ice cream in a flat bowl) or vertical (stacked like ice cream on a cone). Tell students that they can choose which way they solve a subtraction sentence, just like they can choose the way they prefer to eat ice cream. Emphasize the placement of the minus sign and the equal sign in the vertical subtraction sentence.

Name © Lighthouse Curriculum. Copying strictly prohibited.
16 Level A Review 1 Lesson 7
Lighthouse Math
|
1. 2. 3.
Try it together!

Circle which one does not belong.

Lighthouse Math | Level A Review 1 Exercise 7 17 1. 2. 3.
© Lighthouse Curriculum. Copying strictly prohibited.
4. 5. 6. Write the di erence. Write the di erence.
5 — 2 3 3 — 2 1 4 — 3 1 3 — 0 1 — 0 1 — 1 4 — 2 5 — 2 3 — 3 2 — 1 5 — 5 3 — 1 4 - 1 = 3 - 2 = 5 - 3 = 1 - 1 = 2 - 2 = 4 - 3 = 3 - 3 = 0
- 3 = 1 Review
4

Review: Addition and Subtraction

Story Problems with Numbers 0 to 5

Picture the problem in your mind!

1. 2. 3.

learn!

Jack had 4 2 popped.

How many are left?

Circle your plan. Draw and solve. Try it together!

Mark saw 3 . He saw 2 more.

How many in all?

Let’s + — + —

+

2 2

2 5

Sam saw 5 . 1 flew away.

How many are left?

+

Noah made 4 2 floated away.

+ —

Teacher Notes

Explain to students that it is important to follow some steps to solve story problems: picture, plan, then solve. Read the word problem to students. Direct students to imagine, or picture, the problem in their minds. Ask students: Is this addition or subtraction? [subtraction] Tell students to draw and solve. Ask students: What is the subtraction sentence? [4-2=2].

Name © Lighthouse Curriculum. Copying strictly prohibited.
18 Level A Review 1 Lesson 8 | Lighthouse Math
plan solve —
How many does Noah have in his hand? —
4 3

Match the problem to its number sentence. Solve.

Tim has 3 .

He picked 1 more

How many does he have?

Matt saw 2

2 flew away.

How many are left?

Luke saw 4 1 crawled away.

How many are left?

Draw to solve. Write the number sentence.

John saw 5 2 went away.

How many are left?

Ezra got 4 .

He got 1 more

How many did he get?

— +

Lighthouse Math | Level A Review 1 Exercise 8 19
© Lighthouse Curriculum. Copying strictly prohibited.
2. 1. 3.
2 — 2 =
4 — 1 =
Review
3 + 1 =

Review 2

Name Chapter 3 Lesson X 20 Counting from 0 to 10 with pennies
20

In Review 2, we will learn about sequencing, counting, and patterns with numbers 0 to 10.

•Put things in order

•Count 0 to 10 on a number line

•Count backward on a number line

•Understand numerical sequence

•Look for patterns

•Fill in missing numbers

•Understand 1 more and 1 less

•Skip count

•Patterns help us with ordering and sequences

•Numbers have a sequence

•Number lines help compare and order numbers

•Number lines help us count forward and backward

•We can hop to skip count on a number line

Vocabulary Words

more less number line skip count sequence order pattern reversed countdown 21 1023 +3 10 8 6 4 2 0 9 7 5 3 1

Let’s learn!

Shortest to tallest Times of day

Try it together!

Youngest to oldest

Smallest to biggest

Teacher Notes

Explain that a sequence is when things are put in a certain order. Talk about what comes first, next and last. Start to introduce comparing words like least, greatest, bigger and smaller. Say the sequence out loud, and encourage students to touch each image with their pencil and discuss what kind of sequence it shows.

1. This shows a baby. A baby grows into a boy, then what does a boy grow into? A man or a baby? 2. This shows a seed, which then grows into a sprout or small plant. What comes next? A tree or a seed? 3. This shows an egg in a nest. Then the egg hatches and a chick comes out. What comes next? The whole egg or a chicken? 4. Here is a tube of toothpaste. First it has to go on your toothbrush, then what comes next?

Name © Lighthouse Curriculum. Copying strictly prohibited. 22 Level A Review 2 Lesson 1 | Lighthouse Math
Review: Putting Things in Order
the one that comes next.
Circle
1. 2. 3. 4.

Circle the one that comes next.

Teacher Notes

The colors of a rainbow have a sequence. The order from top to bottom is red, orange, yellow, green, blue, purple. Can you fill in the missing colors of this rainbow?

Lighthouse Math | Level A Review 2 Exercise 1 23
© Lighthouse Curriculum. Copying strictly prohibited.
Review
1. 4. 5. 2. 3.

Write the missing numbers.

Teacher Notes

Explain that a number line is a line that has a space for each number and that we can use the number line to help us count. Count the numbers on the train at the top of the page. Remind students to touch each number with their pencil as they count. Then show them the first train. Count the numbers together and stop when you get to the empty box. Guide students to write the missing number in that box. Explain that the students can look at the train at the top of the page if they need help with the numbers.

Name © Lighthouse Curriculum. Copying strictly prohibited.
24 Level A Review 2 Lesson 2 | Lighthouse Math
Let’s learn! Try it together!
Review: Counting on a Number Line 0 to 10
A number line helps put numbers in order.
0 1 2 3 4 5 6 7 8 9 10
1. 4. 2. 3. 23 0 4 1 65 8 23 0 4 1 675 89 20 4 1 5 23 0 4 1 5

Write the missing numbers.

Teacher Notes

We need to count the caterpillar. Find the missing numbers and write them in. Let's count the first one together. Remember to touch the number with your pencil as you count. Ready? 1...what comes next? The number 2, so let's trace it...3...4...5...6...7... now we need to fill in this space. 8...9...10. We made it to the head of the caterpillar! Now count and fill in the missing numbers.

Lighthouse Math | Level A Review 2 Exercise 2 25
© Lighthouse Curriculum. Copying strictly prohibited.
1. 4. 2. 5. 3. 1 3 4 5679 10 2 1 4 579 10 2 8 023456789 10 0123456789 10 0123456789 10 Review

Teacher Notes

Name © Lighthouse Curriculum. Copying strictly prohibited. Let’s learn! Try it together! 26 Level A Review 2 Lesson 3 | Lighthouse Math Review: Understanding Numerical Sequence from 0 to 10 01 2345 01234 5
Explain that a number line is a line that has a space for each number and that the numbers are in order. When the numbers are in order, we say that they are in sequence. Draw and write to finish the number line. The numbers go in order by one more!
1.
Lighthouse Math | Level A Review 2 Exercise 3 27 0123456789 10
© Lighthouse Curriculum. Copying strictly prohibited.
0123456789 10 0123456789 10 Write the missing numbers. Draw a number line from 0 to 10.
Circle Review
Teacher Notes Use the green crayon and circle the number between 2 and 4. Use the orange crayon and circle the number between 7 and 9.
1. 2.
3.

Teacher Notes

Explain that a number pattern is any order of numbers, or relationship between numbers that repeats. Think aloud how to figure out (counting out loud on fingers is great) the jump between, for example, 1 and 3, and how that is the same as the jump between 3 and 5, so it’s a pattern. Use the board, number lines, drawing in the jumps and counting out loud to help students learn.

Name © Lighthouse Curriculum. Copying strictly prohibited.
it together! 28 Level A Review 2 Lesson 4 | Lighthouse Math
with
1 to 10
Let’s learn! Try
Review: Patterns
Numbers
Write the missing numbers.
10
10
2 2 2 2
1. 2. 3. 4. 1023456789
234 567 102345789
102345679 10 Let’s make a pattern. 2
Lighthouse Math | Level A Review 2 Exercise 4 29 Write the missing numbers. Teacher Notes Look at the number lines together. Guide students to figure out the sequence they see and write in the missing numbers. 1. 2. 4. 3. 5. 6. 10 34576 9 10 102345789 10 102345679 135 9 0246 10 102345678 10 Review
© Lighthouse Curriculum. Copying strictly prohibited.

Review: Patterns with Numbers 1 to 10 Reversed Order on the Number Line

Try

Write

the missing numbers.

Let's count down. 1.

Teacher Notes

Explain that numbers can go in order forwards and backwards. Help the rocket ship blast o . Count down from ten. Touch each number on the number line as you count down.

0 Blast o ! Now we need to fill in the missing numbers.

Help students look for connections between counting forward and backwards from 10

Name © Lighthouse Curriculum. Copying strictly prohibited.
Let’s learn!
it
30 Level A Review 2 Lesson 5 | Lighthouse Math
together!
10, 9, 8, 7, 6, 5, 4, 3, 2, 1,
2.
3 1 10 8 6 4 2 0 9 7 5 3 1
10 8 6 4 2 0 9 7 5
9 10 87 6
©
Lighthouse Math | Level A Review 2 Exercise 5 31 1. 2. 3.4.5.6. 8 4 2 0 10 6 4 0 8 6 2 0 10 8 4 0 9 10 87653210 10 34576 9 10 Write the missing numbers. Review
Lighthouse Curriculum. Copying strictly prohibited.
Name © Lighthouse Curriculum. Copying strictly prohibited. Let’s learn! Try it together! 32 Level A Review 2 Lesson 6 | Lighthouse Math Review: Understanding One More and One Less 0123456789 10 0 0 1 1 2 2 3 3 4 4 5 5 6 6 7 7 8 8 9 9 10 10 1 more 1 less Write the missing numbers. Teacher Notes The number line can help to find out what is one more or one less than a number. Hop up one time to find one more. Hop back one time to find one less. Have students physically move their finger on the number line to find one more and one less. 7 1 less1 more 2 1 less1 more 5 1 less1 more 4 1 less1 more 1. 3. 2. 4.
©
prohibited. Lighthouse Math | Level A Review 2 Exercise 6 33 0123456789 10 1. 2.
Lighthouse Curriculum. Copying strictly
crayon.
one less
3.
your orange crayon. Circle one less than 1. Write the missing numbers. One More 4 9 2 1 3 5 8 6 One Less 2 7 6 1 10 4 3 8 Circle . Review
Teacher Notes Find your blue crayon. Circle 1 more than 5. Find your yellow crayon. Circle one more than 8. Find your red
Circle
than
Find
Name © Lighthouse Curriculum. Copying strictly prohibited. Let’s learn! Try it together! 34 Level A Review 2 Lesson 7 | Lighthouse Math Review: Understanding More and Less with Numbers 0 Through 10 Teacher Notes Number 1 - Circle the number that is 4 more than 2. Number 2 - Circle the number that is 3 less than 8. Number 3 - Circle the number that is 6 less than 7. Number 4: Circle the number that is 6 more than 1. Remind students to count out loud as they hop. This helps to keep track of the amount they are going up for more and/or the amount they are going back for less. Draw the hops. Circle the number. 10234 123 567 7 89 10 1023456789 10 1023456789 10 1023456789 10 1023456789 10 3 more than 4 is 1. 2.
Count the hops!
3. 4.

Write the number.

1023456789 10

What is 4 more than 1?

What is 1 more than 9?

What is 2 less than 7?

What is 5 less than 10?

8. 9.

What is 6 more than 3?

What is 3 more than 7?

Teacher Notes

Number 1, circle the shape that is 2 more than 0. Write the missing number. Number 2, circle the shape that is 3 more than 7. Write the missing number. Number 3, circle the shape that is 2 less than 8. Write the missing number.

Lighthouse Math | Level A Review 2 Exercise 7 35 10 345789
© Lighthouse Curriculum. Copying strictly prohibited. 4. 5. 1. 6. 7. 2. 3.
Circle . Review

Teacher

Name © Lighthouse Curriculum. Copying strictly prohibited.
Try it together! 36 Level A Review 2 Lesson 8 | Lighthouse Math Review: Skip Counting on a Number Line 1 1 0 0 2 2 3 3 4 4 5 5 6 6 7 7 8 8 9 9 10 10 +2 +3+3+3 +2+2 Skip count! Draw the hops.
Let’s learn!
2.
3.
Model this with your finger and have
10 1023456789 10 1. 1023456789 10 2. 3.
Notes 1. Draw hops to skip count by 2’s.
Draw hops to skip count by 3’s.
Draw hops to skip count by 4’s Count the amount of hops in between to determine the skip counting rule.
students follow along. 1023456789
©
Lighthouse Math | Level A Review 2 Exercise 8 37 Write. Teacher Notes Finish the number line. Then, draw in your own skip counting jumps. Write the number you skip counted by. 1. 2. 3. 4. 5. 6. Write the number. 1023456789 10 1023456789 10 1023456789 10 1023456789 10 Skip counting by:
0 0 1 2 Review
Lighthouse Curriculum. Copying strictly prohibited.
I am skip counting by: I am skip counting by:

Chapter 1

Name Chapter 3 Lesson X 38
from 0 to 10
Counting
with pennies
38

In Chapter 1, we will learn about adding within 10.

Adding means to combine two or more amounts to find the sum or total.

•Add through 10 using objects, drawings and ten frames

•Find patterns by adding by 1, 2, 3 and 4

•Make sums within 10 using 2 numbers

•Make sums within 10 using 3 numbers

•We can use our fingers to help us add

•We can add by drawing and counting

•We can change the order of addends, but the total stays the same

•Using ten frames can help us add and notice patterns

Vocabulary Words

Name Chapter 3 Lesson X 39 Counting from 0 to 10 with pennies
add sum pennies vertical addition in all total combine ten frame addend 39

Let’s learn!

Try it together!

Teacher Notes

When we add, we count up. Start with adding one and practice sums with one. Then look for patterns. Look at the pattern of the fruits when we add 1, 2, 3 and 4. It’s OK for students to use objects, draw pictures or use their fingers when they are adding. Then, with practice, they will start to recognize sums without drawings.

Name © Lighthouse
strictly prohibited.
Curriculum. Copying
= = = = + + + + Adding on. +1, +2, +3, +4 Sums Through 10
... +2 +1 +3 +4 40 Level A Chapter 1 Lesson 1 | Lighthouse Math 3 4 5 6
We can add
1 + 1 = 5 + 1 = 9 + 1 = 2 + 2 = 3 + 3 = 3 + 4 = 6 + 1 = 3 + 2 = 5 + 3 = 5 + 4 = 5 + 2 = 6 + 2 = 4 + 3 = 6 + 4 = 6 + 3 = 1. 2. 3. 4. 5.
Write how many.
©
Lighthouse Math | Level A Chapter 1 Exercise 1 41 Write how many. 5 + 1 = 7 + 2 = 6 + 3 = 1 + 1 = 3 + 3 = 3 + 4 = 8 + 1 = 6 + 1 = 6 + 4 = 4 + 4 = 4 + 2 = 4 + 1 = 3 + 2 = 6 + 2 = 2 + 2 = 5 + 4 = 7 + 1 = 7 + 3 = 1. 2. 3. 4. 5. 6. 7. 8. = + 5 2 = + 5 4 9
Lighthouse Curriculum. Copying strictly prohibited.

+

Write how many.

Teacher Notes

Help students count on using their fingers. Example: For 4+5, students can hold their fist as they start with “4.” Help them think aloud what comes next, and then when they’re ready, say, “5, 6, 7, 8, 9” as they put up 5 more fingers. This will show the 5 they are adding to the 4 they started with in order to get to the total of “9.”

Name © Lighthouse Curriculum. Copying strictly prohibited.
Let’s learn!
42 Level A Chapter 1 Lesson 2 | Lighthouse Math
Try it together!
Through 10 Using 2
Sums
Numbers
2
3
4
5
6 + 2 = 7 + 2 = 1 + 6 = 8 + 1 = 4 + 4 = 4 + 2 = 3 + 3 = 5 + 5
5 + 2
1. 2. 3. 4.
+24 6= = 9 + 1 =
+
=
+
=
=
=
© Lighthouse
Copying strictly prohibited. Lighthouse Math | Level A Chapter 1 Exercise 2 43 Write the answer. 5 + 3 = 3 + 3 = 7 + 3 = 4 + 5 = 5 + 2 = 6 + 1 = 7 + 2 = 3 + 5 = 6 + 2 = 5 + 4 = 5 + 5 = 4 + 2 = 6 + 4 = 6 + 3 = 4 + 4 = 10 + 0 = 2 + 8 = 3 + 4 = 1. 2. 3. 4. 5. 6. 7. + = 10
Curriculum.

Draw and write how many.

+ =

5 + =

5 + =

5 + = 5 + =

Teacher Notes

If you have pennies, counters or dried beans, you can guide students to put 6 pennies in and then add 2 more. How many pennies are in the ten frame now? Model di erent equations using the ten frames provided. This ten frame has 7 pennies. How many pennies are there if we add 3 more? Draw them in the ten frame to find out. How many pennies are in the bottom ten frame? How many will there be if we add 1? 2? How many do we need to add to fill the ten frame?

Name © Lighthouse Curriculum. Copying strictly prohibited.
44 Level A Chapter 1 Lesson 3 | Lighthouse Math
Let’s learn! Try it together!
Making Sums with Pennies += 1. 2.
5 + =
628

Draw and write how many.

Teacher Notes

Use the ten frames to show addition. This top ten frame has 9 pennies in it. Find the 9 in the number sentence. How many more do we add? Draw 1 more penny in the ten frame above. Write the answer to 9 + 1 = ___.

Use the blank ten frame to practice di erent sums with pennies. If you have counters or pennies, practice by putting in groups of pennies and adding more. Draw or show some of the equations on the page.

Lighthouse Math | Level A Chapter 1 Exercise 3 45
© Lighthouse Curriculum. Copying strictly prohibited.
2. 3. 4. 5. 6. 9
2
3 = 8
2
5
5
6
4
2
8
5 + 3 = 6 + 2 = 5 + 4 = 6 + 3 = 4 + 6 = 7 + 3 = 4 + 2 = 5 + 2
3
7
1
1.
+ 1 =
+
+
=
+
=
+
=
+
=
=
+
=
+ 9 =

Teacher Notes

Explain that we can add using this format which is called vertical addition. When we line up the numbers vertically, we can write the number below the line. We can also put images next to each addend and count up how many in all.

Name © Lighthouse Curriculum. Copying strictly prohibited.
learn! 46 Level A Chapter 1 Lesson 4 | Lighthouse Math Try it together!
Let’s
2 + 1 33 + = Introducing Vertical Addition
2. 3.
how many. 1 + 1 3 + 3 2 + 0 5 + 3 1 + 2 2 + 2 4 + 2 + + 1 + 3 + 3 + 2 + + + + = = = = = + + = = = =
1.
We can add 2 + 1 = __ like this too. Write
©
Lighthouse Math | Level A Chapter 1 Exercise 4 47 0 + 8 8 + 1 9 + 0 7 + 3 6 + 2 8 + 2 5 + 4 1 + 9 4 + 4 5 + 2 1. 2. 3. 4. 5.
1 + 4 2 + 4 1 + 2 + + = = = 3 + 3 4 + 1 3 + 4 2 + 2 2 + 5 5 + 1 + + + + + + = = = = = = +
Lighthouse Curriculum. Copying strictly prohibited.
Write how many.

Teacher Notes

Help students count on using their fingers or using scratch paper to write out tally marks or other ways of keeping track of the numbers they are adding, to count the total. Watch for students who need to count out loud in order to add accurately.

Name © Lighthouse Curriculum. Copying strictly prohibited. Let’s learn! Try it together! 48 Level A Chapter 1 Lesson 5 | Lighthouse Math Sums Through 10 Using 3 Numbers
+ + + + 2 53 = = 1. 2. 3. 4.
how many. 3 + 1 + 2 = 2 + 2 + 2 = 4 + 1 + 3 = 4 + 2 + 1 = 3 + 2 + 3 = 5 + 2 + 2 = 10 1 4 + 4 4 3 + 2 3 3 + 3 2 3 + 5
Write

Teacher Notes

We can add three numbers together. Read the number sentence. To find how many in all, we can draw raindrops for each number. Let’s count and add and write how many in all. Help students match each addend with the raindrops. Explore how we can add the raindrops up in any order or show each number and count the total.

Lighthouse Math | Level A Chapter 1 Exercise 5 49
© Lighthouse Curriculum. Copying strictly prohibited.
Write how many.
1. 2. 3. 4. 5. 6. 7.
2 + 3 + 5 = 2 + 4 + 3 = 0 + 3 + 2 = 6 + 3 + 0 = 0 + 4 + 4 = 3 + 2 + 4 = 4 + 0 + 5 = 4 + 5 + 1 = 3 + 2 + 4 = 3 3 + 2 8 0 + 1 3 2 + 5 1 1 + 6 5 5 + 0 1 2 + 3 4 4 + 2 7 2 + 1
++=

Teacher Notes

Work through the example together. Explain that we can add 2 groups together in di erent orders. No matter what order we add, the number in all stays the same. Guide students to add using objects, their fingers or drawings if needed. Point out that they are the same numbers but in a di erent order, and how the sum is the same.

Name © Lighthouse Curriculum. Copying strictly prohibited.
50 Level A Chapter 1 Lesson 6 | Lighthouse Math
Let’s learn! Try it together!
Introducing the Commutative Property of Addition 4 + 2 = 6 2 + 4 = 6 1. 3. 5. 6. 2. 4. += +=
many. 5 + 4 = 4 + 5 = 8 + 2 = 2 + 8 = 7 + 1 = 1 + 7 = 3 + 4 = 4 + 3 = 2 + 6 = 6 + 2 = 1 + 9 = 9 + 1 =
Write how
©
= + + + + = 1. 3. 5. 6. 8. 7. 9. 10. 2. 4. 9 + 1 = 3 + 7 = 5 + 1 = 1 + 2 + 3 = 4 + 3 + 0 = 5 + 3 + 1 = 3 + 2 + 1 = 0 + 3 + 4 = 1 + 3 + 5 = 1 + 9 = 7 + 3 = 1 + 5 = 8 + 2 = 6 + 4 = 7 + 2 = 2 + 8 = 4 + 6 = 2 + 7 = 10 10 Write how many. Lighthouse Math | Level A Chapter 1 Exercise 6 51
Lighthouse Curriculum. Copying strictly prohibited.

Teacher Notes

Go over the example together. Show the students that adding vertically can sometimes be easier. We can also use the space to the side of each number to draw dots or Xs which can help us count and check our work. Count the ice cream cones together. Start with 7 cones and add on 2. Then count the 9 “answer” cones together to show how it matches the answer 7+2=9.

Name © Lighthouse Curriculum. Copying strictly prohibited. Let’s learn! 52 Level A Chapter 1 Lesson 7 | Lighthouse Math Try it together! We can add like this! 5 + 4 9 + = Vertical Addition Sums Through 10 1 + 1 3 + 2 4 + 3 8 + 1 5 + 1 6 + 2 3 + 5 6 + 1 9 + 1 5 + 5 3 + 4 5 + 2 4 + 4 3 + 3 5 + 4 6 + 3 2 + 2 5 + 3 6 + 4 10 + 0
how many.
Write
1. 3. 2. 4.
©
Lighthouse Math | Level A Chapter 1 Exercise 7 53 + + = =
Lighthouse Curriculum. Copying strictly prohibited.
10 + 0 9 + 1 1 + 9 8 + 2 0 + 10 7 + 3 6 + 4 5 + 4 2 + 4 3 + 7 5 + 5 6 + 3 4 + 5 4 + 6 7 + 1 8 + 1 3 + 2 1 + 1 5 + 3 4 + 2 2 + 1 3 + 1 2 + 2 4 + 4 3 + 3 1. 2. 3. 4. 5. 6. 4 + 4 10 + 0
Write how many.

Teacher Notes

Go over the example together. Show that we can add numbers horizontally (or side by side), or vertically (stacked). Discuss the advantages of each way to add. Explain that it is OK to draw pictures or count up, but with practice, students will learn their addition facts. Use objects to help and look for patterns.

© Lighthouse Curriculum. Copying strictly prohibited. Let’s
Name
it
54 Level A Chapter 1 Lesson 8 | Lighthouse Math Mixed Review Sums Through 10 3 + 4 7 2 3 + 5 10
how many. 1 + 1 3 + 2 4 3 + 2 5 2 + 1 6 1 + 3 7 1 + 1 2 3 + 2 5 + 1 6 + 2 9 + 1 5 + 5 4 + 4 3 + 3 2 + 2 5 + 3 1.
learn!
Try
together!
Write
3. 2.
Let’s review!
Lighthouse Math | Level A Chapter 1 Exercise 8 55 0 2 + 3 6 2 + 2 5 2 + 1 3 2 + 3 2 3 + 4 1 + 8 3 + 7 5 + 0 2 + 4 3 + 6 1. 2. 3. 4. + = + + = 1 + 3 + 4 = 2 + 1 + 6 = 5 + 2 + 3 = 6 + 0 + 1 = + + = + = + = 7 + 2 = 5 + 1 = 0 + 7 = 6 + 2 = 2 + 6 = 4 + 2 =
how many.
© Lighthouse Curriculum. Copying strictly prohibited.
Write

Chapter 2

56

In Chapter 2, we will learn about subtracting within 10.

•Subtraction means to take away

•Find di erences within 10 using 2 numbers

•Subtract within 10 using objects, ten frames, and number lines

•Use vertically written subtraction problems to solve for di erences within 10

•Use subtraction patterns to solve for di erences within 10.

•Crossing out objects as we subtract helps us show our work and subtract accurately

•Ten frame

Vocabulary Words

start with take away left over subtract di erence cross out 57 10 − 4 = 6
10 — 3 7

Subtraction with Numbers from 0 to 6 Using Pictures

start with

take away

Let’s learn! Try it together!

= 2

left over

Circle the number left over.

start with

start with

Teacher Notes

start with

take away

left over

= 4 2 0 = 3 4 5 = 0 1 2 =

over left over

We start with 5 green circles. Trace the lines to cross out 2 green circles. When we cross out, we are showing how many we take away. Now, how many are left over? Count how many green circles that we did not cross out. There are 3. So we circle the answer 3. Help students complete the next 3 problems. Explain or discuss number 2. What happens when we take away or cross out all of the shapes we start with? If they are all crossed out, then how many are left over?

Name © Lighthouse Curriculum. Copying strictly prohibited.
3 2
1.
left 58 Level A Chapter 2 Lesson 1 | Lighthouse Math
take away take away take away
5
2. 3. 4.

Draw, cross out and write how many are left over.

Cross out and write how many are left over. 7.

start with

8.

start with

Teacher Notes

left over

= 4 = 4

left over

Here are 5 green circles. If we start with 5 green circles, how many do we have to cross out or take away in order to have 4 left over? There are 6 green circles. How many do we have to cross out now? Guide students to review the previous page and look for patterns to help them answer these questions.

Lighthouse Math | Level A Chapter 2 Exercise 1 59
© Lighthouse Curriculum. Copying strictly prohibited.
2. 3. 4. 5. 6. 5 — 3 = 6 — 4 = 3 — 3 = 6 — 1 = 1 — 0 = 4 — 2 =
1.

Subtraction Patterns with Numbers from 0 to 6

Let’s learn!

Patterns can help me solve subtraction problems!

2

Teacher Notes

Explain to students that there are patterns in subtraction. One pattern is when the starting number is being subtracted by itself, the di erence is always zero (0), like 2-2=0. The other pattern is when subtracting zero (0), the di erence is always the same as the starting number, like 3-0=3

Name © Lighthouse Curriculum. Copying strictly prohibited.
Try it together!
— 3 =
2
Draw a picture. Write how many are left. 3
0 2 —
= 3
0 = 3
— 0 =
— 5 =
— 0 =
— 0
3 =
3.
60 Level A Chapter 2 Lesson 2 | Lighthouse Math
5
4
6
= 3 —
1. 2.
4.
2 0

Draw a line to match. Write how many are left.

Write how many are left.

2. 3. 4. 5. 6. 7. 8. 9. 10. Lighthouse Math | Level A Chapter 2 Exercise 2 61 4 — 4 = 2 — 2 = 3 — 3 = 3 — 0 = 4 — 0 = 1 — 1 = 6 — 6 = 4 — 4 = 3 — 0 = 1 — 1 = 2 — 2 = 6 — 0 = 5 — 0 = 2 — 0 =
© Lighthouse Curriculum. Copying strictly prohibited.
1.

Subtraction with Numbers from 0 to 10 Using Pictures

left over

Draw. Circle how many are left. Write how many are left.

6 8 10 — 2 = 8 — 3 = 6 — 5 =

Teacher Notes

Explain that subtracting means taking away some from an amount you started with. Help students use their fingers and draw objects such as circles or tally marks as they do each problem, so they understand what the action of subtraction means. Watch for students who need to count out loud in order to subtract accurately.

Name © Lighthouse Curriculum. Copying strictly prohibited.
Let’s learn! Try it together!
=
=
8 5 3 = 2 5 7 = 0 5 1
=
=
10
4
6
62 Level A Chapter 2 Lesson 3 | Lighthouse Math
1. 2. 3.
start with take away

Write how many are left over.

Draw how many are left over.

Teacher Notes

Find the boats. This is how many we start with. Notice that there are 9 boats and the equation says 9 take away 3 Let's cross out 3 boats to find out how many are left over.

© Lighthouse Curriculum. Copying strictly prohibited.
10 — 4 = 9 — 7 = 7 — 6 = 6 — 3 = 3 — 2 = 9 — 5 = 8 — 4 = 1 — 1 = 8 — 2 = 9 — 3 = 5 — 3 = 2
10 — 3 =
2. 4. 3. 1. 5. 6.
Lighthouse Math | Level A Chapter 2 Exercise 3 63

Subtraction with Numbers from 0 to 10 Using a Ten Frame

Let’s learn!

I can use ten frames to subtract!

7 — 2 = 5

Try it together!

Use pennies to subtract.

1.

Teacher Notes

Explain how the example above shows subtraction using a ten frame. Provide students with counters, beans, pennies or small squares of paper to put in their ten frames.

Here is a blank ten frame. Let’s try some subtraction problems together. Use your counters or paper to show the following subtraction: 5—3. Put 5 counters in your ten frame. Now, take away 3. How many are left? Continue to provide simple subtraction problems using numbers less than 10 You can choose one to draw in together.

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64 Level A Chapter 2 Lesson 4 | Lighthouse Math

4.

Write how many are left over.

7

Teacher Notes

Here we have 10 pennies in our ten frame. It is full! Let’s practice subtraction with 10. We can show 10 take away 2 by covering up 2 pennies. So, 10 take away 2 is... how many are not covered? 8. There are 8 left over. Continue using the ten pennies, cover up the “take away” amount and write what’s left over.

Lighthouse Math | Level A Chapter 2 Exercise 4 65
© Lighthouse Curriculum. Copying strictly prohibited.
1. 2. 3.
10 — 2 = 10 — 7 = 10
8
10
10 — 5
6
=
— 1 =
= 10 —
= 10 — 3 = 10 —
= 10 — 4 = 10 — 10 = 10 — 0 = 10 — 9 =
Name © Lighthouse Curriculum. Copying strictly prohibited. Let’s learn! Try it together! 66 Level A Chapter 2 Lesson 5 | Lighthouse Math Subtraction with Numbers from 0 to 10 Using a Number Line
Notes Review the number line and how it can be used to help subtract or take away. Remind students that the amount of hops backwards is the same as the number being subtracted, or taken away. Circle the start with number. Count how many hops you make. Fill in the amount you take away or hop, and fill in how many are left, or where you end up. 0 0 0 0 1 1 1 1 2 2 2 2 3 3 3 3 4 4 4 4 5 5 5 5 6 6 6 6 7 7 7 7 8 8 8 8 9 9 9 9 10 10 10 10 Count as you hop back! 10 — 7 = 9 — = 6 — = 7 — = 3 4 Count and write the hops. Then, write how many are left.
Teacher
1. 2. 3.

Write how many are left. Use the number line to help.

Lighthouse Math | Level A Chapter 2 Exercise 5 67
© Lighthouse Curriculum. Copying strictly prohibited.
0123456789 10
1. 4. 7. 10. 13. 16. 2. 5. 8. 11. 14. 17. 3. 6. 9. 12. 15. 18. 10 — 2 = 3 — 2 = 6 — 3 = 6 — 2 = 7 — 1 = 9 — 3 = 6 — 2 = 9 — 7 = 7 — 4 = 4 — 4 = 10 — 6 = 6 — 4 = 5 — 1 = 4 — 1 = 8 — 6 = 8 — 4 = 5 — 5 = 8 — 8 =

Teacher Notes

Remind students how we can write subtraction vertically. The top number is what we start with. The number below it tells us how many to take away. If there are images, we can show how many to start with, then cross out to take away. The answer of what is left over goes below the line. This number should match the images that were not crossed out.

Name © Lighthouse Curriculum. Copying strictly prohibited.
Try it together! 68 Level A Chapter 2 Lesson 6 | Lighthouse Math Vertical Subtraction with Numbers from 0 to 10
Let’s learn!
10 — 3 7 7 — 4 2 — 1 9 — 9 8 — 5 8 — 8 6 — 2 9 — 3 2 — 0 7 — 3 8 — 6 4 — 2 4 — 3 5 — 2 6 — 0 10 — 8 5 — 3 4 — 1 9 — 8 6 — 3 8 — 2 1. 2. 3. 4. Subtract. This is the same as 10-3=7

Teacher Notes

To subtract vertically, we start with the top number and take away the number below it. Here are 10 chickens. The equation says to subtract, or take away, 3. So we cross out 3. How many are left over? Write it below this line. In each problem, find the top number. Check to see if the images match. Then look at the bottom number. That's how many you take away or cross out. Write how many are left over.

Subtract. Lighthouse Math | Level A Chapter 2 Exercise 6 69 10 — 3 7 9 — 8 1
© Lighthouse Curriculum. Copying strictly prohibited.
1. 3. 5. 2. 4. 6. 7 — 2 3 — 2 4 — 2 8 — 5 2 — 1 9 — 2 10 — 1 8 — 4 10 — 2 6 — 3 6 — 6 9 — 8 9 — 7 7 — 4 9 — 5 10 — 6 8 — 7 3 — 0 10 — 4 3 — 2

Teacher Notes

Explain that subtracting means taking away some from an amount you started with. Help students use their fingers, pennies or counters. Encourage them to draw objects such as circles or tally marks as they do each problem, so they understand what the action of subtraction means. Watch for students who need to count out loud in order to subtract accurately.

Name © Lighthouse Curriculum. Copying strictly prohibited.
70 Level A Chapter 2 Lesson 7 | Lighthouse Math
Formal Subtraction with Numbers from 0 to 10
Let’s learn!
Try it together!
8 — 5 3 10 — 5 5 9 — 4 5 — 1 8 — 3 8 — 4 9 — 6 9 — 5 7 — 2 10 — 8 6 — 4 4 — 2 7 — 3 1. 2. 3. 4. = = = 3 5
Write how many are left over.
I know a lot of ways to take away!

Write and draw how many are left over.

© Lighthouse Curriculum. Copying strictly prohibited.
Lighthouse Math | Level A Chapter 2 Exercise 7 71 7 — 4 7 — 2 4 — 1 9 — 5 9 — 6 7 — 6 10 — 6 10 — 4 9 — 2 8 — 7 9 — 8 2 — 1 3 — 0 3 — 2 8 — 5
8 — 4 4 6 — 3
Write how many are left over.
1. 2. 3. 4. 5.
Name © Lighthouse Curriculum. Copying strictly prohibited. Let’s learn! Try it together! Mixed Review of Subtraction with Numbers from 0 to 10 Teacher Notes Review the di erent strategies students have learned to subtract, including drawing, using a number line and using a ten frame. Remind students that subtracting means to take away or to count backwards from the starting number. 72 Level A Chapter 2 Lesson 8 | Lighthouse Math Draw a line to match. Write how many are left. I can solve for 6-4=_ with di erent strategies! 0123456789 10 0123456789 10 1. 10 — 5 7 — 3 9 — 6
Lighthouse Math | Level A Chapter 2 Exercise 8 73
10
© Lighthouse Curriculum. Copying strictly prohibited.
0123456789
1. 4. 7. 2. 5. 8. 3. 6. 9. 4 — 2 = 5 — 2 = 5 — 3 = 7 — 2 = 9 — 7 = 10 — 0 = 6 — 1 = 8 — 4 = 9 — 9 = 10 — 7 6 — 2 9 — 5 5 — 4 3 — 1 10 — 10 7 — 6 8 — 5 0 — 0
Write how many are left.
over. 10. 11. 12. 13. 14. 15. 16. 17. 18.
Write how many are left

Chapter 3

74

In Chapter 3, we will learn to count, compare and add numbers 0 to 20.

•Understand and write numbers 11 to 20 using shapes and objects

•Count 0 to 20 using shapes, objects and pennies

•Compare within 0 to 20 using shapes, objects and pennies

•We can count all kinds of objects

•The color, size and shape of the objects does not a ect the total number (e.g. 15 objects is always 15 objects, regardless of their shape, color and/or size)

•We can use our fingers to help us count

•We can see that each number represents an amount of something when we compare (e.g. 17 pennies is clearly more than 9 pennies)

•A number line can help us understand numbers, count and notice number patterns

•Ten frames can help us understand numbers, count, notice patterns, compare numbers and add on to ten

2019181716151413121110987654321

Vocabulary Words

count compare 11 75 number line ten frame more less the same equal 12 13 14 15 16 17 18 19 20

Teacher Notes

Name © Lighthouse Curriculum. Copying strictly prohibited. Let’s learn! 76 Level A Chapter 10 Lesson 3 | Lighthouse Math Try it together! Trace the numbers. Trace the correct number.
Introduce the numbers 11, 12, 13, 14 and 15. Point to the numbers, say the names and ask questions like: which shows 11? Which shows 12? Count the animals together and practice how to write each number. Watch for students who need to count out loud to count the total accurately. Understanding and Writing Numbers 11, 12, 13, 14, 15 1.2.3.4.5. 76 Level A Chapter 3 Lesson 1 | Lighthouse Math 11 815141315 1113121413 12131415
each.
Lighthouse Math | Level A Chapter 3 Exercise 1 77 1114
©
Lighthouse Curriculum. Copying strictly prohibited. Trace how many. Write how many for
1. 4. 6. 8. 10. 2. 7. 9. 3. 5.

Trace the correct number.

Trace the correct number.

1.2.3.4.5.

1518182016

1715191912

Teacher Notes

Explain that we can count all sorts of things. Help students touch and/or cross o each object as they count to help with accuracy. Watch for students who need to count out loud in order to get the correct answer. Count the animals together and introduce each number 16-20 with its name and how to write it.

Name © Lighthouse Curriculum. Copying strictly prohibited.
78 Level A Chapter 10 Lesson 3 | Lighthouse Math
Understanding and Writing Numbers 16, 17, 18, 19, 20
Let’s learn!
Try it together!
78 Level A Chapter 3 Lesson 2 | Lighthouse Math
1617181920

Trace how many.

Write how many for each.

Lighthouse Math | Level A Chapter 3 Exercise 2 79
© Lighthouse Curriculum. Copying strictly prohibited.
1. 4. 6. 8.
2. 7.
3. 5. 161817

Teacher Notes

Count with the students from 0 to 20. Use your fingers to count. Point to the objects when you count together. Use the number line to count and to recognize the numbers. Ask students to count to a certain number or identify and say the numbers out loud. When counting the shapes, remind students to touch each shape as they count up. Carefully draw a line to match the shapes with the correct number.

Name Let’s learn! 80 Level A Chapter 10 Lesson 3 | Lighthouse Math © Lighthouse Curriculum. Copying strictly prohibited. 80 Level A Chapter 3 Lesson 3 | Lighthouse Math Try it together! 12345678910 11 1213141516171819 20 20 animals
Draw a line to match. 18 20 11 15 10 1. Counting from 0 to 20

Draw circles to show how many.

Lighthouse Math | Level A Chapter 3 Exercise 3 81
how many.
© Lighthouse Curriculum. Copying strictly prohibited.
Write
8 11 20 1. 4. 2.
6. 7. 3. 11
5.
Name © Lighthouse Curriculum. Copying strictly prohibited. Let’s learn! 82 Level A Chapter 10 Lesson 3 | Lighthouse Math 82 Level A Chapter 3 Lesson 4 | Lighthouse Math Try it together! Comparing within 0-20 Using Objects and Shapes Write how many. Circle less Circle less.
Count each group of shapes. Touch each shape with your pencil as you count. Write how many you counted and then circle the group that has less.
Teacher Notes
1. 2.
12 is less than 15
3.

Write how many. Circle less Circle less.

Teacher Notes

Lighthouse Math | Level A Chapter 3 Exercise 4 83
© Lighthouse Curriculum. Copying strictly prohibited.
Circle the number that is less.
4. 5. 6. 7. 8.
18 15
17 19 12
20
Count each group of shapes. Touch each shape with your pencil as you count. Write how many you counted and then circle the group that has less. 1. 2. 3.
1715
13
11
Name © Lighthouse Curriculum. Copying strictly prohibited. Let’s learn! 84 Level A Chapter 10 Lesson 3 | Lighthouse Math Let’s compare the numbers! Try it together! 84 Level A Chapter 3 Lesson 5 | Lighthouse Math Comparing Numbers 0 to 20 More Than and Equal To is more than is equal to 912612 = Circle more.
Count each group of shapes. Touch each shape with your pencil as you count. Write how many you counted on the line and then circle the group that has MORE.
1814
Teacher Notes
2. 1. 3.

Count the objects. Draw an equal amount of circles. Draw a line to the equal amount. Circle the number that is more.

Lighthouse Math | Level A Chapter 3 Exercise 5 85
© Lighthouse Curriculum. Copying strictly prohibited.
5. 4. 3. 2. 1. 6. 7. 8. 12 18 7 9 5 14 15 8 16 11 8 13 77

1.

Let’s learn!

2.

Try it together!

Try it together!

2, 4, 6, 8, 11, 14, 16, 14, 12, 1, 4, 7, 19, 17, 15, 1, 3, 5, 5, 7, 9, 3, 6, 9, 12, 10, 8,

Teacher Notes

Name © Lighthouse Curriculum. Copying strictly prohibited.
86 Level A Chapter 10 Lesson 3 | Lighthouse Math
What comes next. Putting Things in Order
Explain that a sequence is when things are put in a certain order. Help students use the number line to find each sequence. Show students how numerical sequences can go both up and down the number line. Use “hops” to show how to move to the next number in the sequence. Watch for students who need to count out loud in order to recognize the sequence. Watch for students who already see a relationship between these sequences and both addition and subtraction.
Level A Chapter 3 Lesson 6 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 012345678910 11 1213141516171819 20
Let’s “hop” along a number line to learn a sequence!
3.

Write the missing numbers.

Teacher Notes

Use the number line on the previous page to help you figure out the sequence. Circle the number that comes next. On the number lines, fill in the missing numbers. Be careful - make sure you notice which numbers are labeled and which ones are missing. Fill in counting numbers if it helps you find the sequence.

1, 3, 5, 6, 9, 12, 2, 4, 6, 15, 12, 9, 3, 6, 9, 14, 12, 10, Circle.
© Lighthouse Curriculum. Copying strictly prohibited.
1. 7. 2. 3. 8. 5. 4. 6. 10 12 8 6 6 3 18 15 13 7 10 8 9 Lighthouse Math | Level A Chapter 3 Exercise 6 87 1 3 5 9 11 15 17 0 2 4 6 10 12 16 18

together!

Try it together!

Sequencing can help me add!

Teacher Notes

Review sequences and explain how understanding sequences can help us add and recognize new sums. Guide students to look for patterns and use facts they know to help them learn other addition facts. For example, if we know 3+2 = 5, the. 4 + 2= 6. Some students will count on to add 2, other students may notice that since the addends are in sequence and we are adding 2 each time, the sums go up in sequence as well. Discuss patterns and strategies as a class.

Name © Lighthouse Curriculum. Copying strictly prohibited.
88 Level A Chapter 10 Lesson 7 | Lighthouse Math
Try it
Let’s learn!
Sequencing and Addition with Numbers from 0 to 12
4 5
2.
Write how many. Add 2 1 3 2 4 3 5 4 6 Add 3 7 10 8 11 9 10 11 12 Add 1
6 7 8 9 1.

Write

Write how many.

Lighthouse Math | Level A Step 7 Exercise 1 89 ©
Chapter 3 Exercise 7
Lighthouse Curriculum. Copying strictly prohibited.
how many.
Add 4 3 4 5 6 7 Add 5 7 8 9 10 11 Add 6 2 3 4 5 6 Add 7 1 2 3 4 5 1. 3. 5. 2. 4. 7 + 2 5 + 2 7 8 + 2 9 + 2 10 + 2 11 + 2 6 + 2

3 + 10 = 13

Try it together!

Try it together!

Write how many in all.

6 + 6 =

5 + 6 =

3 + 9 =

Teacher Notes

Explain that we can add all sorts of things. If possible, help students use beans, hard pasta pieces or other counters, to help them count and add accurately. Then, when using pictures of objects, help students touch and/or cross o each object as they count, to help with accuracy.

Name © Lighthouse Curriculum. Copying strictly prohibited.
90 Level A Chapter 10 Lesson 3 | Lighthouse Math
Let’s learn!
Addition within 15 Using Objects and Shapes
+
add!
Level A Chapter 3 Lesson 8
+ + + Let’s
1. 2. 3.

Teacher Notes

Count the circles. Write how many. Now find the number sentence that matches. Draw a line to connect the circle to its number sentence. Write how many in all.

Lighthouse Math | Level A Step 7 Exercise 1 91
Match.
+ 3 = 4 + 8 = 9 + 6 =
+ 2
12 +
= 14 +
=
+
2
=
© Lighthouse Curriculum. Copying strictly prohibited.
7
13
=
1
0
3
15 = 5 + 6 =
+ 9
1.
Chapter 3 Exercise 8
2. 3. 4.
66 12 += 4 + 6 = = 9 + 0 = + 6 + 6 = = + 12
Write how many.

Chapter 4

92
In Chapter 4, we will learn various addition strategies to solve equations with numbers from 0 to 20. •Solve addition problems within 0 to 20 with addition strategies •Counting on a number line to solve addition problems •Use tens frames to recognize doubles facts and add •Use a tens frame to make a ten and add on •Use the doubles plus one strategy to add numbers within 0 to 20 •Understand that equal means the same •Determine if an equation is true or false •Balance addition equations Vocabulary Words ten count on doubles ten frame equal sum addend = 93 012345678910 11 1213141516171819 20 +1+1+1+1+1+1+1+1
Name © Lighthouse Curriculum. Copying strictly prohibited. Let’s learn! Try it together! Addition within 20 Using Objects and Shapes Teacher Notes The number line can help us add. Teach the strategy of counting and labeling hops to help show addition. Circle the first number and “hop” the amount added on. Watch for and encourage students who show they are counting the total number of hops in addition to labeling each hop. Add using number lines. 94 Level A Chapter 4 Lesson 1 | Lighthouse Math 1. = + 012345678910 11 1213141516171819 20 += 88 16 012345678910 11 1213141516171819 20 +1+1+1+1+1+1+1+1 + 2. 012345678910 11 1213141516171819 20 = + 3. 012345678910 11 1213141516171819 20 =
©
Write how many. Lighthouse Math | Level A Chapter 4 Exercise 1 95 012345678910 11 1213141516171819 20 6 + 6 = 5 + 5 = 16 + 1 = 4 + 9 = 7 + 3 = 8 + 8 = 15 + 4 = 7 + 7 = 12 + 6 = 6 + 8 = 13 + 5 = 7 + 5 = 11 + 0 = 8 + 3 = 4 + 8 = 3 + 17 = 9 + 6 = 9 + 3 = 1. 2. 3. 4. 5. 6.
Lighthouse Curriculum. Copying strictly prohibited.

Doubles with Numbers from 0 to 20

We can use a ten frame to help us make doubles!

2 + 2 =

+ = 8 444

7 + = 14

3 + = 68 + = 16

9

+ = 18 + = 12 + = 2

Teacher Notes

Be sure to use mathematical terms of ADDEND, SUM and DOUBLE when going over math problems together. Have students repeat math terms and use them when talking about the problems. Explain how ten frames can help add doubles. If students count along one row, they can then double it by repeating the same number on the row below. Use counters and the blank ten frames to help find the fact for problem 3.

Name © Lighthouse Curriculum. Copying strictly prohibited.
it together! 96 Level A Chapter 4 Lesson 2 | Lighthouse Math
Let’s learn! Try
Find the missing double. 1.
2. 3.

Draw a line from the doubles to the sum. Fill in the missing doubles addends.

Add the doubles to find the sum.

©
Lighthouse Math | Level A Chapter 4 Exercise 2 97 + 3 = 6 4 + 4 = + = 20 5 + 5 = 5 + = 10 8 + 8 = + = 4 7 + 7 = 1 + = 2 2 + 2 = + = 18 3 + 3 = 8 + 8 8 4 + 4 20 2 + 2 14 10 + 10 16 7 + 7 4
Lighthouse Curriculum. Copying strictly prohibited.
1. 2. 3. 4. 5.

Let’s learn!

If I know my doubles fact, I can solve doubles + 1 facts.

Try it together!

Draw a line to match. Write how many in all.

Doubles

Doubles Plus One

Teacher Notes

Show or describe real world examples of doubles like egg cartons have 6+6, eyes have 1+1, etc. Explain to students that a doubles plus one problem is a doubles fact but one more. Double the number and add one more.

Name Lighthouse Math | Level A Step 8 Lesson 1 98 © Lighthouse Curriculum. Copying strictly prohibited.
1 1 2 2 3 3 4 4 98 Level A Chapter 4 Lesson 3 | Lighthouse Math
20 4 + 4 = 8 6 + 6 =
13 5 + 6 = 3 + 3 = 6 + 7 = 9 + 9
9 + 10
5 + 5
2 + 3
2 + 2
3 + 4
4 + 4 + 1
Doubles and Doubles Plus One with Numbers from 0 to
12
=
=
=
=
=
=
= 9 So 4 + 5 = 9
1.

Write how many in all.

Write how many in all.

Write how many in all.

Lighthouse Math | Level A Step 8 Exercise 1 99 © Lighthouse Curriculum. Copying strictly prohibited. Chapter 4 Exercise 3 6 + 6 = 9 + 10 = 5 + 5 = 2 + 3 = 10 + 10 = 1 + 2 = 7 + 7 = 5 + 6 = 4 + 4 = 7 + 8 = 2 + 2 = 9 + 9 = 7 + 8 = 2 + 2 = 6 + 7 = 3 + 3 = 8 + 8 = 8 + 9 = 1 + 1 = 4 + 5 = 9 + 9 = 15 12 15 19 7 + 7 + 1 = 5 + 5 + 1 = 3 + 3 + 1 = 6 + 6 + 1 = So 7 + 8 = So 5 + 6 = So 3 + 4 = So 6 + 7 =
1. 2. 3. 4. 5. 6.

Teacher Notes

Name Lighthouse Math | Level A Step 8 Lesson 1 100 © Lighthouse Curriculum. Copying strictly prohibited. Try it together! Let’s learn! Try it together! 100 Level A Chapter 4 Lesson 4 | Lighthouse Math Adding Ten and Some More 10 10 + 2 =
+ 5 =
+ 3 =
+ 1 = 12 I can add on from 10!
how many in all. 11121314 10 + 4 = 14
10
10
10
Write
1. 3.
Show students that when adding to 10, they can just count up from 10. Show them how 10 pennies makes a whole group like in the ten frame. Then they can add on or count up the leftover or extra ones. 2.
4.

Write how many in all.

Lighthouse Math | Level A Step 8 Exercise 1 101
Chapter 4 Exercise 4 10 + 1 = 10 + 7 = 10 + 0 = 10 + 5 = 10 + 6 = 10 + 9 = 10 + 3 = 10 + 4 = 10 + 10 = 10 + 7 = 10 + 2 = 10 + 8 = 10 + 6 = 10 + 9 = 10 + 4 =
© Lighthouse Curriculum. Copying strictly prohibited.
2. 1. 3. 4.
5.

Move and draw the circles in the ten frame. Count on from ten to add. Write the sum.

So, 7 + 5 =

Teacher Notes

Show students how to make a ten by moving counters, pennies or circles into the empty spaces of the ten frame. Ask students how many counters or pennies they moved. Ask students how many counters or pennies are left over. Explain to students that they made an easier problem now by making a ten and some more.

Name © Lighthouse Curriculum. Copying strictly prohibited. Let’s learn! Try it together! 102 Level A Chapter 4 Lesson 5 | Lighthouse Math Make a Ten to Add with Numbers from 0 to 20
can make a ten and
on! 8 + 3
+ 4
+ 5 21 11 11
8 + 3 =
9 + 4
I
then add
9
7
So,
So,
=
10 + 1 =
10 + = 10 + =
3 3
2. 1. 1

Make a ten and add on. Draw a line to match.

Use the ten frame to make a ten to add. Write the sum.

©
Lighthouse Math | Level A Chapter 4 Exercise 5 103 10 + 0 =10 10 + 5 = 15 10 + 1 = 11 5 + 8 8 + 3 6 + 5 9 + 4 9 + 7 6 + 7 So, 8 + 5 = So, 8 + 3 = So, 6 + 5 = So, 9 + 4 = So, 9 + 7 = So, 6 + 7 = 10 + = 10 + = 10 + = 10 + = 10 +
10
Lighthouse Curriculum. Copying strictly prohibited.
=
+ =
1. 5. 2. 6. 3. 7. 4.

The Equal Sign and Balancing Addition Problems with Numbers from 0 to 20

6 + 2 = 1 + 7

Equal means the same!

8 8

Draw circles to make problems equal. Write in the missing number.

3 + 5 = 4 + 0 + = 9 + 1 7 + = 5 + 3

Teacher Notes

Explain that the equal sign means the same. Explain that you can balance addition problems on either side of the equal sign. To be balanced, both sides of the equation must have the same amount or sum. Explain the example: 6 bananas and 2 pumpkins equal 8 in all. 1 banana and 7 pumpkins also equals 8 in all. Both sides of the equal sign are the same because they equal 8. These addition problems are balanced.

Name © Lighthouse Curriculum. Copying strictly prohibited.
Let’s learn!
104 Level A Chapter 4 Lesson 6 | Lighthouse Math
Try it together!
=
= =
=
=
1. 2. 3.

Circle the number to balance the addition problems. Use the ten frames to help.

Write the missing addend to balance the addition problems.

Circle the number that is wrong. Write the correct number to balance the problems.

Lighthouse Math | Level A Chapter 4 Exercise 6 105 2 + 2 = 1 +
+
+ 1
© Lighthouse Curriculum. Copying strictly prohibited.
10 + 5 = 14 + 2 4 + 4 = 8 + 8 7
= 8
9
1. 3. 4. 5. 6. 7. 2. 4 + = 3 + 6 0 + 10 = + 5 13 + 0 = 10 + 12 + 2 = 10 + 13 + 5 = 17 + 11 + = 19 + 1
2 3 1 2 8

7 = 6 + 1

19 = 19

I can check my addition problems to see if they are true or false!

4 + 4 = 94 + 4 = 8

Draw to check the addition problem. Circle true or false. If

false, cross out and write the correct number.

3 + 2 = 6 5 12 = 6 + 6 5 + 3 = 8 False False False

Teacher Notes

Explain to students that addition problems can be true or false. This means the problem can be correct or incorrect. Point out di erent components of an addition problem like the addends, sum and equal sign. Remind students that the equal sign means the same amount. Show students how to check each addition problem by drawing or solving with a math strategy. Then, point out that the sum or addend can be changed to make the problem correct.

Name © Lighthouse Curriculum. Copying strictly prohibited.
106 Level A Chapter 4 Lesson 7 | Lighthouse Math True or False Addition Sentences
Try it together! Let’s learn!
1. 2. 3. True True True

9 + 4 = 155 = 912 = 6 + 6

2 + 3 = 5 + 05 + 2 = 1019 + 1 = 18

2 + 5 = 4 + 33 + 2 = 613 + 7 = 20

Circle true or false . If false, rewrite to fix the problem.

10. 11.

John saw 5 . He saw 2 . How many bugs did he see in all?

10 = 2 + 5

= +

Henry saw 8

He saw 8 . How many did he see in all?

8 + 16 = 8

Lighthouse Math | Level A Chapter 4 Exercise 7 107
© Lighthouse Curriculum. Copying strictly prohibited.
Circle true or false . + = 1. 2. 3. 4. 5. 6. 7. 8. 9.

I can pick a strategy to add!

Doubles

Doubles

Doubles

Doubles

Plus One Doubles

Counting On from Ten

Doubles

Plus One

Counting On from Ten

Doubles

Doubles

Plus One

Counting On from Ten

Doubles

Doubles

Plus One

Counting On from Ten

Name © Lighthouse Curriculum. Copying strictly prohibited.
learn! 108 Level A Chapter 4 Lesson 8 | Lighthouse Math Using Strategies to Add Numbers 0 to 20
+ 5 = 6 + 7
13 10 + 7 = 4 + 4 = 8 + 9 = 6 + 6 = 7 + 8 = Try it together!
Let’s
10
=
students of the di erent ways to mentally add. Provide examples of addition problems and have students say which way they could easily add in their mind.
Teacher Notes Remind
in
a strategy.
Write how many
all. Circle
Plus One
Counting on from ten
2. 1. 3.
4.

Write how many in all.

©
Lighthouse Math | Level A Chapter 4 Exercise 8 109 9 + 9 = 8 + 8 = 10 + 10 = 6 + 7 = 10 + 8 = 2 + 3 = 10 + 2 = 3 + 4 = 10 + 3 = 4 + 5 = 5 + 5 = 2 + 2 = 1 + 1 = 6 + 6 = 10 + 9 = 10 + 4 = 10 + 1 = 8 + 9 = 4 + 4 = 10 + 6 = 9 + 10 =
Lighthouse Curriculum. Copying strictly prohibited.
2. 1. 3. 4. 5. 6. 7.

Chapter 5

110

In Chapter 5, we will learn about the relationship between addition and subtraction with numbers from 0 to 20.

•Understand how to solve for an unknown or missing part

•Use a bar model to determine missing parts

•Relate addition and subtraction problems to solve for missing parts

•Notice how numbers relate in fact family number sentences

•Model di erent ways to make ten

•Show how to make a ten first in order to subtract numbers 0 to 20

•Use doubles facts to help subtract quickly

Whole PartPart

Vocabulary Words

whole part related facts doubles bar model ten frame turn around facts 111

Subtraction with Missing Parts from 0 to 20

8 squares minus 6 squares equal 2 squares left.

8

whole part part

6 8 — 6 = 2

Try it together!

2

Color the part. Write the missing number.

7 3 44

7 — 3 =

9 5

6 2

Teacher Notes

9 — = 5

6 — 2 =

Explain to students that this is a bar model. The two numbers combine to make the whole. Similarly, show them that you can take apart the whole to find the two parts. Model this with cubes or objects by moving pieces from the whole to the two parts. Explain to students that you can sutbract from the whole to find either part.

Name © Lighthouse Curriculum. Copying strictly prohibited.
Let’s learn!
112 Level A Chapter 5 Lesson 1 | Lighthouse Math
1. 2. 3.

Write the missing part.

Write the missing part.

4. 2. 5. 3. 6.
Lighthouse Math | Level A Chapter 5 Exercise 1 113
© Lighthouse Curriculum. Copying strictly prohibited. 1.
8. 7.
16 6 12 5 7 18 2 17 9 9 4 11 3 11 — = 5 18 — = 1 20 — = 6 19 — 7 = 16 — = 4 16 — 6 = 12 — 5 = 18 — 2 = 17 — = 9 9 — = 4 11 — 3 = 17 — = 6 7

Let’s learn! Try it together!

Write

Teacher Notes

Explain to students that related facts are addition and subtraction problems that use the same whole and parts. Model and practice writing an addition problem and subtraction problem when given three numbers.

Name © Lighthouse Curriculum. Copying strictly prohibited.
Related Facts with Numbers from 0 to 20 114 Level A Chapter 5 Lesson 2 | Lighthouse Math 12 57 9
5
12 — 5 = 12
9
4
12 — 7 = 12
11
4 + 5
7 + 5 = 11
1
5 + 4 = 5 + 7 = 1 + 11
54 12 111
=
— 1 =
=
=
=
+
=
= 9
the
1. 2.
missing number.
These are related facts!
Lighthouse Math | Level A Chapter 5 Exercise 2 115 — = — = — = — = — = + = + = + = + = + = — = — = — = — = — = + = + = + = + = + = 16 214 14 59 8 26 20 515 12 39 Write the missing numbers. 1. 4. 2. 5. 3. 16214
© Lighthouse Curriculum. Copying strictly prohibited.

A related fact can help me solve other problems!

7 — 4 = 3 3

So 4 + = 7

Write the missing part.

10 — 1 =

So 1 + = 10

5 — 3 = So 3 + = 5

8 — 7 = So 7 + = 8

Teacher Notes

Explain that related facts can help solve missing number problems. If you see that two problems have the same two numbers, then their missing part is also the same. Number 1 - Color 1 rectangle blue. Color the rest orange. Write your missing part for the related facts. Number 2 - Color 3 rectangles blue. Color the rest orange. Write your missing part for the related facts. Number 3Color 7 rectangles blue. Color the rest orange. Write your missing parts for the related facts.

Name © Lighthouse Curriculum. Copying strictly prohibited.
Let’s learn!
Using Related Facts to Solve for Missing Parts 116 Level A Chapter 5 Lesson 3 | Lighthouse Math
Try it together!
1. 2. 3.

Write the missing part.

Draw the missing image. Think of related facts.

+= Lighthouse Math | Level A Chapter 5 Exercise 3 117
© Lighthouse Curriculum. Copying strictly prohibited.
9 — 2 = 2 + = 9 18 — 1 = 1 + = 18 7 — 1 = 1 + = 7 15 — 9 = 9 + = 15 12 — 3 = 3 + = 12 20 — 12 = 12 + = 20 3 — 1 = 1 + = 3 13 — 12 = 12 + = 13 18 — 6 = 6 + = 18 10 — 5 = 5 + = 10 14 — 4 = 4 + = 14 19 — 7 = 7 + = 19
—= += —=
1. 4. 2. 5. 6. 3.

2.

Let’s learn!

Subtracting from ten with related facts.

Try it together!

Write the missing parts.

Teacher Notes

3 3

10 — = 7

10 — 7 =

10 — 6 =

10 — = 6

10 — 2 =

10 — = 2

10 — 5 = 10 — = 5

Explain to students that they can use a ten frame to visualize and subtract from ten quickly. Subtracting from ten quickly is a strategy that will help students to subtract larger numbers from 0 to 20. When visualizing subtraction in a ten frame, imagine the empty boxes as the missing part.

Name © Lighthouse Curriculum. Copying strictly prohibited.
Ten Frame Subtraction 118 Level A Chapter 5 Lesson 4 | Lighthouse Math
1.
3.

Write the missing parts.

Write the missing parts.

Lighthouse Math | Level A Chapter 5 Exercise 4 119 10 — = 4 10 — 4 = 10 — = 7 10 — 7 = 10 — = 9 10 — 9 = 10 — = 3 10 — 3 = 10 — = 6 10 — 6 = 10 — = 8 10 — 8 = 10 — = 1 10 — 1 = 10 — = 2 10 — 2 = 10 — = 5 10 — 5 = 10 — = 10 — = 10 — = 10 — =
© Lighthouse Curriculum. Copying strictly prohibited.
1.
4. 2.
5. 3.

Let’s learn!

Make a Ten to Subtract with Numbers from 0 to 20

Make a ten first. Then subtract the rest.

15 — 8 = ?

Try it together!

15 — = 10

5 3

10 — = 7

So, 15 — 8 = 7

Cross out. Write the missing part.

13 — 7 = ?

13 — = 10

10 — = So, 13 — 7 =

Teacher Notes

Explain to students that they can solve some subtraction problems by making a ten first. Then, they can take the remaining amount away. Subtracting a number from ten is a quick way to solve math problems. Model crossing out in the ten frames to first make a ten. Then count on to cross out the remaining amount.

Cross out 3 to make ten. Then, count up from 3 as you cross o more bees. Stop when you’ve crossed out 7 in all.

Name © Lighthouse Curriculum. Copying strictly prohibited.
120 Level A Chapter 5 Lesson 5 | Lighthouse Math
1.
©
Lighthouse Math | Level A Chapter 5 Exercise 5 121 Cross out. Write the missing parts. Write the di erence.
Notes Guide students to use the ten frames to solve the subtraction problems. Tell students to draw or use objects to make a ten to subtract. 17 — = 10 17 — 9 = ? 10 — = So, 17 — 9 = 13 — 6 = 12 — 7 = 17 — 8 = 14 — 9 = 13 — 5 = 16 — 7 = 18 — 9 = 15 — 8 = 11 — 3 = 1. 4. 2. 3.
Lighthouse Curriculum. Copying strictly prohibited.
Teacher
Name © Lighthouse Curriculum. Copying strictly prohibited. Let’s learn! Doubles Facts with Subtraction of Numbers from 0 to 20 122 Level A Chapter 5 Lesson 6 | Lighthouse Math
Notes
facts can be used as a related fact. Explain to students that it is important to memorize doubles facts so that they can recognize them as related facts in subtraction. 3 + 3 = 6, If then 6 — 3 = 3 Try it together! Write the missing numbers. 5 + 5 = 10 2 + 2 = + = + = — = — = 10 — 5 = — 2 =
1.
If Then
Teacher
Doubles
4. 2.
3.
©
Lighthouse Math | Level A Chapter 5 Exercise 6 123
the sum and di erence. Match the related doubles facts.
the di erence. 12 — 6 = 18 — 9 = 1 + 1 = 2 1 18 — 9 = 10 + 10 = 2 — 1 = 9 + 9 = 20 — 10 = 7 + 7 = 14 — 7 = 6 — 3 = 2 — 1 = 10 — 5 = 20 — 10 = 16 — 8 = 20 — 10 = 4 — 2 = 14 — 7 = 8 — 4 = 12 — 6 = 5. 3. 2. 1. 4.
Lighthouse Curriculum. Copying strictly prohibited.
Write
Write

Teacher Notes

When showing students how to find the missing part, or missing number, guide them to count back. Explain that they will begin on the largest number and count their hops back until they’ve reached the di erence (the answer to the subtraction problem). Model counting out loud and having students use their fingers with you.

Name © Lighthouse Curriculum. Copying strictly prohibited. Let’s learn! Finding the Missing Part in Subtraction with a Number Line 124 Level A Chapter 5 Lesson 7 | Lighthouse Math Try it together! 9101112131415161718 19 20 9101112131415161718 19 20 9101112131415161718 19 20 9101112131415161718 19 20 12345678910 –6–5–4–3–2–1 Count back to find the missing part! Draw the hops. Write the missing number.
18 — = 10 9 — = 3 6
— = 10
— = 11
— = 14
13
15
17
1.
2. 3. 4.
Lighthouse Math | Level A Chapter 5 Exercise 7 125 Write the missing number. 14 — = 12 10 — = 2 13 — = 0 9 — = 1 8 — = 3 8 — = 4 16 — = 3 17 — = 4 13 — = 1 19 — = 1 20 — = 9 7 — = 4 10 — = 4 12 — = 9 19 — = 11 16 — = 14 18 — = 2 6 — = 3 1. 2. 3. 4. 5. 6. 12345678910 11 1213141516171819 20
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Let’s learn!

Flash made

12 . Flash ate

5 . How many are left?

Try it together!

Draw a picture. Write the di erence.

12 — 5 = 7

Sam has 18 . Then 3 melt. How many does Sam have left?

Mike has 10 . He eats 4 . How many are left?

18 — 3 = — =

Teacher Notes

Guide students to draw circles or squares for the objects in the problem. After drawing the whole amount, instruct students to cross out the part to show subtraction. Then guide students to fill in their numbers.

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Understanding Subtraction in Word Problems with Numbers 0 to 20 126 Level A Chapter 5 Lesson 8 | Lighthouse Math
2. 1.

Draw a picture. Write the di erence.

Tina made 14 7 are chocolate. The rest of the are vanilla. How many are vanilla?

— =

There were 12 . Then 6 got lost. How many are left? — =

Write the di erence.

Joe has 19 growing.

He cuts o 7 . How many does he have left?

— =

5.

There are 7 swimming.

2 swim away.

How many are left?

— =

4.

20 are on the farm.

9 leave. How many are left on the farm?

— =

6.

Bob has 11 4 float away.

How many are left?

— =

Lighthouse Math | Level A Chapter 5 Exercise 8 127
© Lighthouse Curriculum. Copying strictly prohibited. 2. 3. 1.

Hundreds

Tens Tens Hundreds
Tens Ones Tens
Ones
Ones
Hundreds
Thousands Ones Tens
6 128
Thousands Chapter

In Chapter 6, we will learn about putting numbers 0 to 200 in sequence, using patterns on the hundreds chart, making numbers with base ten blocks and comparing 2-digit numbers.

•Use number lines and hundreds charts to sequence numbers

•Find patterns in the hundreds chart

•Calculate 10 more and 10 less

•Make groups of tens and ones

•Compare 2-digit numbers using base ten blocks

•Compare 2-digit numbers using <, >, =

•We can Compare 2-digit numbers by understanding how many tens and how many ones

•Base ten blocks help us count, write and compare numbers

•The hundreds chart is set up to help us find ten more and ten less

Ones Tens Hundreds Thousands Ones Tens Hundreds Tens Hundreds Thousands Ones Tens Hundreds Thousands Ones Tens Hundreds Ones Tens Ones
Words hundreds chart sequence more less greater than less than equal to rods unit cubes compare < > = ones 129
Vocabulary

Let’s learn!

What patterns do you see?

Try it together!

Teacher Notes

Explain to students that the hundreds chart helps us to recognize number patterns and to skip count. Tell students to say the green square numbers out loud (1…2…3) Tell students that this is counting by 1s. Ask students: What comes next? [4] Next, tell students to count the red circle numbers out loud (10…20…30). Tell students this is skip counting by 10s. What comes next?

Continue finding the rest of the missing numbers. Use the hundred chart to practice skip counting by

Name
© Lighthouse Curriculum. Copying strictly prohibited.
[40]
2s and 5s. The Hundreds Chart 130 Level A Chapter 6 Lesson 1 | Lighthouse Math
the hundreds
what comes next. Circle 50. Count and underline numbers from 50 to 59. 12345678910 11121314151617181920 21222324252627282930 31 32 3334353637383940 41424344454647484950 51525354555657585960 61626364656667686970 7172737475 76 77787980 818283848586 87 888990 919293949596979899100 Count by 1’s Count by 10’s 1 2 3 79 81 80 10 20 30 25 35 45 1, 2, 3, 10, 20, 30, 79, 80, 81, 25, 35, 45, 22, 23, , , 10, 15, , , 46, 56, , , 90, 91 , , 4 40 1. 2. 3. 4.
Use
chart. Write

8.

I am 1 more than 29. I am 1 less than 31. If you skip count by 10, you land on me. I am

©
Lighthouse Math | Level A Chapter 6 Exercise 1 131 Color the numbers on the hundreds chart to make a picture. Use the hundreds chart to find each number. Circle the greater number. Use the hundreds chart to find the mystery number. Write it down. 12345678910 11121314151617181920 21222324252627282930 31 32 3334353637383940 41424344454647484950 51525354555657585960 61626364656667686970 7172737475 76 77787980 818283848586 87 888990 919293949596979899100 4, 5, 6, 7, 13, 14, 15, 16, 17, 18, 22, 23, 24, 27, 28, 29, 32, 33, 34, 37, 38, 39, 43, 44, 45, 46, 47, 48, 54, 55, 56, 57 25, 26, 35, 36 65, 66, 73, 74, 75, 76, 77, 78, 84, 85, 86, 87, 95, 96 1891 111 2526 99100 6030 1331 2. 3. 4. 5. 6. 7.
Lighthouse Curriculum. Copying strictly prohibited.

Let’s learn!

Count

Try it together!

Write the missing numbers from the 200 chart.

Teacher Notes

Tell students to find 100. Show students how to count on from 100 (101, 102, 103…). Count as a class until 109. Ask students: What happens once you get to 100? [start over with 1’s]. Pick a number on the hundreds chart and tell students a riddle or clues. For example, tell students the riddle: Start at 192. Skip count by 2s to get to me. I am 2 less than 200. What number am I? [198]

Name
© Lighthouse Curriculum. Copying strictly prohibited.
Understanding Numerical Sequence 0 to 200 132 Level A Chapter 6 Lesson 2 | Lighthouse Math
12345678910 11121314151617181920 21222324 2627282930 31 32 3334353637383940 4142434445 47484950 51525354555657585960 61626364656667 6970 7172737475 76 77787980 818283848586 87 8890 919293949596979899100 101102104105106107108109110 111112113114115116117118119120 121122124125126127128129130 131 132 133134135136137138139140 141142143144 146147148149150 151152153154155156 158159160 161162163164165166167168170 171172173174175 176 177178179180 181182184185186 187 188189190 191192193194195196197198199
Mystery Number: Start at 192 Skip count by 2’s to get to me. I am 2 less than 200 I am We can count to 200!
1.
by
to
Color each 10s box yellow.
10s
200.
©
Lighthouse Math | Level A Chapter 6 Exercise 2 133 Use the 200 chart to find the number. Circle the number it is closer to. 199 is closer to: 150 is closer to: 162 is closer to: 149 is closer to: 101 is closer to: 85 is closer to:
4. 2. 5.
6.
80859095 105110115 125 60 8090100 120 80 848688909294 98100 Write the missing numbers. 100 155 100 200 150 140 160 170 80 100 100 110
Lighthouse Curriculum. Copying strictly prohibited.
1. 1.
3.
2. 3.

Let’s learn!

Try it together!

Teacher Notes

Show students how to find ten more and ten less than a number on the hundreds chart. Identify that they can move down or up from a number to find more or less. Go through the hundreds charts and identify other patterns about the tens and the ones. Explain to students that ten less means that we are subtracting 10 from that number. Ten more means we are adding 10 to that number.

Name © Lighthouse Curriculum. Copying strictly prohibited.
Ten More and Ten Less 134 Level A Chapter 6 Lesson 3 | Lighthouse Math 12345678910 11121314151617181920 21222324252627282930 31 32 3334353637383940 41424344454647484950 51525354555657585960 61626364656667686970 7172737475 76 77787980 818283848586 87 888990 919293949596979899100
the
1. 63 53 73 10 less 10 more 41 10 less 10 more 79 10 less 10 more 52 10 less 10 more 84 10 less 10 more 28 10 less 10 more I can find ten more and ten less on a hundreds chart! 24 44 Ten more Ten less
Write
missing numbers.
©
Lighthouse Math | Level A Chapter 6 Exercise 3 135 4344454647 5354555657 6364656667 737475 76 77 83848586 87 Write the numbers. Write the sum or di erence. Skip count by 10’s. Write in the missing numbers. Circle the mystery number on the hundreds chart. Circle or . The mystery number is 10 more than 56. Is the mystery number same as 10 less than 76? 1. 2. 3. 4.
65 10 less 10 more 32 10 less 10 more 87 10 less 10 more 23 10 less 10 more 56 10 less 10 more 10 less 10 more 71 + 10 = 88 + 10 = 46 − 10 = 30 + 10 = 22 + 10 = 65 − 10 = , 53, 63, , 8339, , , 69, 79 49
Lighthouse Curriculum. Copying strictly prohibited.
5.

Circle the group of ten. How many ones are left?

Circle the groups of ten. How many ones are left?

There are

How many apples? Circle the group of ten. How many ones are left?

tens

ones ones

There are

Teacher Notes

Students may circle a di erent version of ten objects than what is shown, and then count the remaining number of objects. Be sure to walk around and check that they are circling ten objects properly. The group of ten, represents the number in the tens place and the rest of the objects represent the ones place. Tell students they will be writing the total number of objects in the blank.

Name © Lighthouse Curriculum. Copying strictly prohibited. Let’s learn! Try it together! 136 Level A Chapter 6 Lesson 4 | Lighthouse Math 117 17 7 Ones Tens Hundreds Thousands Ones Tens Hundreds Thousands Ones Tens Hundreds Ones Tens Hundreds Ones Tens Hundreds Thousands Ones Tens Hundreds Thousands Ones Tens Hundreds Thousands Ones Tens Hundreds Thousands Ones Tens Hundreds Thousands Ones Tens Hundreds Thousands Ones Tens Hundreds Thousands Ones Tens Hundreds Thousands Ones Tens Hundreds Thousands Ones Tens Hundreds Ones Tens Hundreds Ones Tens Hundreds Ones Tens Hundreds Thousands Ones Tens Hundreds Thousands Ones Tens Hundreds Thousands Ones Tens Hundreds Thousands Ones Tens Hundreds Thousands Ones Tens Hundreds Thousands Ones Tens Hundreds Thousands = = = Making Groups of Tens and Ones
tens
tens
ones
1. 2.

4. Ones Tens Hundreds Thousands

There Ones Tens Hundreds Thousands

Ones Tens Hundreds Thousands

Ones Tens Hundreds Thousands

Ones Tens Hundreds Thousands

Ones Tens Hundreds Thousands

Ones Tens Hundreds Thousands

1. 2. 3. 5. Ones Tens Hundreds Thousands

Ones Tens Hundreds Thousands

Ones Tens Hundreds Thousands Ones Tens Hundreds Thousands

Ones Tens Hundreds Thousands

Lighthouse Math | Level A Chapter 6 Exercise 4 137 Ones Tens Hundreds Thousands Ones Tens Hundreds Thousands Ones Tens Hundreds Thousands Ones Tens Hundreds Thousands Ones Tens Hundreds Ones Tens Hundreds Ones Tens Hundreds Thousands Ones Tens Hundreds Thousands Ones Tens Hundreds = = = = =
tens tens tens tens tens ones ones ones ones ones
are There are There are There are There are
Count how many. Circle the groups of ten. How many ones are left? Ones Tens Hundreds Thousands

Teacher Notes

Show students how a tens rod = 10 cubes, just like they’ve been drawing, but easier! Explain that students do not need to draw ten cubes when they are drawing a ten, they just need to make it tall and thin to show it’s a ten, and the ones small and square, to show they are ones. If possible, help students count by tens and ones using actual tens rods (any group of ten cubes stuck together) and ones, before starting the lesson. Have students show their work by using actual tens and ones, if possible, before drawing the tens and ones on paper.

Name © Lighthouse Curriculum. Copying strictly prohibited. I can count by tens and add on the ones! 138 Level A Chapter 6 Lesson 5 | Lighthouse Math Counting with Tens and Ones Ones Tens Hundreds Thousands Ones Tens Hundreds Thousands Ones Tens Hundreds Thousands Ones Tens Hundreds Thousands Ones Tens Hundreds Thousands 30737 + = 1. 2. 3. 5. 4. 6. Ones Tens Hundreds Thousands Ones Tens Hundreds Thousands Ones Tens Hundreds Thousands Ones Tens Hundreds Thousands Ones Tens Hundreds Thousands Ones Tens Hundreds Thousands Ones Tens Hundreds Thousands Ones Tens Hundreds Thousands Ones Tens Hundreds Thousands
Ones Tens Hundreds Thousands Ones Tens Hundreds Thousands Ones Tens Hundreds Thousands Ones Tens Hundreds Thousands Ones Tens Hundreds Thousands Ones Tens Hundreds Thousands Ones Tens Hundreds Thousands Ones Tens Hundreds Thousands Ones Tens Hundreds Thousands Ones Tens Hundreds Thousands Ones Tens Hundreds Thousands Ones Tens Hundreds Thousands Ones Tens Hundreds Thousands Ones Tens Hundreds Ones Tens Hundreds Ones Tens Hundreds Thousands Ones Tens Ones Tens Ones Tens Ones Tens Ones Tens Ones Tens Hundreds Thousands Ones Tens Hundreds Thousands Ones Tens Hundreds Thousands Ones Tens Hundreds Thousands Ones Tens Hundreds Thousands Ones Tens Hundreds Thousands Ones Tens Hundreds Thousands Ones Tens Hundreds Thousands Ones Tens Hundreds Thousands Ones Tens Hundreds Thousands Ones Tens Hundreds Thousands Ones Tens Hundreds Thousands Ones Tens Hundreds Thousands Ones Tens Hundreds Ones Tens Hundreds Ones Tens Hundreds Ones Tens Hundreds Ones Tens Hundreds Ones Tens Hundreds Thousands Ones Tens Hundreds Thousands Ones Tens Hundreds Thousands Ones Tens Hundreds Thousands Ones Tens Ones Tens Ones Tens
how many. Try it together! Let’s learn! + = + = + = + = + = + =
Write
© Lighthouse Curriculum. Copying strictly prohibited. Lighthouse Math | Level A Chapter 6 Exercise 5 139 1. 2. 3. Ones Tens Hundreds Thousands Ones Tens Hundreds Thousands Ones Tens Hundreds Thousands Ones Tens Hundreds Thousands Ones Tens Hundreds Thousands Ones Tens Hundreds Thousands Ones Tens Hundreds Thousands Ones Tens Hundreds Thousands Ones Tens Hundreds Thousands Ones Tens Hundreds Thousands Ones Tens Hundreds Thousands Ones Tens Hundreds Thousands Ones Tens Hundreds Thousands Ones Tens Hundreds Thousands Ones Tens Hundreds Thousands Ones Tens Hundreds Thousands Ones Tens Hundreds Thousands Ones Tens Hundreds Thousands Ones Tens Hundreds Thousands Ones Tens Hundreds Thousands Ones Tens Hundreds Thousands Ones Tens Hundreds Thousands Ones Tens Hundreds Thousands Ones Tens Hundreds Thousands Ones Tens Hundreds Thousands Ones Tens Hundreds Thousands Ones Tens Hundreds Thousands Ones Tens Hundreds Thousands Ones Tens Hundreds Thousands Ones Tens Hundreds Thousands 4. 5. 6. 8.
Ones Tens Hundreds Thousands Ones Tens Hundreds Thousands Ones Tens Hundreds Thousands Ones Tens Hundreds Thousands Ones Tens Hundreds Thousands Ones Tens Hundreds Thousands Ones Tens Hundreds Thousands Ones Tens Hundreds Thousands Ones Tens Hundreds Thousands Ones Tens Hundreds Thousands Ones Tens Hundreds Thousands Ones Tens Hundreds Thousands Ones Tens Hundreds Thousands Ones Tens Hundreds Thousands Ones Tens Hundreds Thousands Ones Tens Hundreds Thousands Ones Tens Hundreds Thousands Ones Tens Hundreds Thousands Ones Tens Hundreds Ones Tens Hundreds Thousands Ones Tens Hundreds Ones Tens Hundreds Thousands Ones Tens Hundreds Ones Tens Hundreds Thousands Ones Tens Hundreds Ones Tens Hundreds Thousands Ones Tens Hundreds Ones Tens Hundreds Thousands Ones Tens Hundreds Ones Tens Hundreds Thousands Ones Tens Hundreds Ones Tens Hundreds Thousands Ones Tens Hundreds Ones Tens Hundreds Thousands Ones Tens Hundreds Ones Tens Hundreds Thousands Ones Tens Hundreds Ones Tens Hundreds Thousands Ones Tens Hundreds Ones Tens Hundreds Thousands Ones Tens Hundreds Ones Tens Hundreds Thousands Ones Tens Hundreds Ones Tens Hundreds Thousands Ones Tens Hundreds Ones Tens Hundreds Thousands Ones Tens Hundreds Ones Tens Hundreds Thousands Ones Tens Hundreds Ones Tens Hundreds Thousands Ones Tens Hundreds Thousands Ones Tens Hundreds Thousands Ones Tens Hundreds Thousands Ones Tens Hundreds Thousands Ones Tens Hundreds Thousands Ones Tens Hundreds Thousands Ones Tens Hundreds Thousands Ones Tens Hundreds Thousands Ones Tens Hundreds Thousands Write how many. Draw tens and ones for each number. 32 27 81 15
7. 9.
Name © Lighthouse Curriculum. Copying strictly prohibited. Let’s learn! 140 Level A Chapter 6 Lesson 6 | Lighthouse Math Comparing Two-Digit Numbers with Tens Rods and Cubes 3741 Ones Tens Hundreds Thousands Ones Tens Hundreds Thousands Ones Tens Hundreds Thousands Ones Tens Hundreds Ones Tens Hundreds Thousands Ones Tens Hundreds Thousands Ones Tens Hundreds Ones Tens Hundreds Thousands Ones Tens Hundreds Thousands Ones Tens Hundreds Thousands Ones Tens Hundreds Thousands Ones Tens Hundreds Thousands Ones Tens Hundreds Ones Tens Hundreds Thousands Ones Tens Hundreds Thousands Ones Tens Hundreds Ones Tens Hundreds Thousands Ones Tens Hundreds Ones Tens Hundreds Thousands Ones Tens Hundreds Ones Tens Hundreds Thousands Ones Tens Hundreds Thousands Ones Tens Hundreds Thousands Ones Tens Hundreds Thousands Ones Tens Hundreds Thousands Ones Tens Hundreds Thousands Ones Tens Hundreds Ones Tens Hundreds Thousands Ones Tens Hundreds Ones Tens Hundreds Thousands Ones Tens Hundreds Ones Tens Hundreds Thousands Ones Tens Hundreds Ones Tens Hundreds Thousands Ones Tens Hundreds Thousands Ones Tens Hundreds Thousands Ones Tens Hundreds Thousands Ones Tens Hundreds Thousands Ones Tens Hundreds Thousands Ones Tens Hundreds Thousands Ones Tens Hundreds Thousands Ones Tens Hundreds Thousands Ones Tens Hundreds Thousands Ones Tens Hundreds Thousands Ones Tens Hundreds Thousands Ones Tens Hundreds Thousands Ones Tens Hundreds Thousands Ones Tens Hundreds Thousands Ones Tens Ones Tens Hundreds Thousands Ones Tens Hundreds Thousands Ones Tens Ones Tens Hundreds Thousands Ones Tens Hundreds Thousands Ones Tens Hundreds Thousands Ones Tens Hundreds Thousands Ones Tens Ones Tens Hundreds Thousands Ones Tens Hundreds Thousands Ones Tens Hundreds Thousands Ones Tens Hundreds Thousands Ones Tens Hundreds Thousands Ones Tens Hundreds Thousands Ones Tens Hundreds Thousands Ones Tens Hundreds Thousands Ones Tens Hundreds Thousands Ones Tens Hundreds Thousands Ones Tens Hundreds Thousands Ones Tens Ones Tens Hundreds Thousands Ones Tens Hundreds Thousands Ones Tens Ones Tens Hundreds Thousands Ones Tens Hundreds Thousands Ones Tens Ones Tens Hundreds Thousands Ones Tens Hundreds Thousands Ones Tens Hundreds Thousands Ones Tens Hundreds Thousands Ones Tens Hundreds Thousands Ones Tens Hundreds Thousands Ones Tens Hundreds Thousands Ones Tens Hundreds Thousands 25 6 8 9 1 Try it together! Which is greater? Circle the bigger number. Write the value of the underlined digit. Teacher Notes Explain to students that each digit has a value, or amount it is worth. Point to the number 37. Tell students the value of the 3 in 37 is 30 because it is in the tens place. The value of the 7 in 37 is just 7 because it is in the ones place. Ask students: What is the value of the 4 in 41? [40] What is the value of the 1 in 41? [1]. Tell students to compare 37 to 41. Ask students: Which worth more? [41] Circle 41. Which is greater? Circle the bigger number. or or or I can compare two-digit numbers if I know the value of each digit! 4. 1. 2. 3. 5.
© Lighthouse Curriculum. Copying strictly prohibited. Lighthouse Math | Level A Chapter 6 Exercise 6 141 36 33 21 27 Ones Tens Hundreds Thousands Ones Tens Hundreds Thousands Ones Tens Hundreds Thousands Ones Tens Hundreds Thousands Ones Tens Hundreds Ones Tens Hundreds Thousands Ones Tens Hundreds Thousands Ones Tens Hundreds Ones Tens Hundreds Thousands Ones Tens Hundreds Thousands Ones Tens Hundreds Thousands Ones Tens Hundreds Thousands Ones Tens Hundreds Thousands Ones Tens Hundreds Ones Tens Hundreds Thousands Ones Tens Hundreds Thousands Ones Tens Hundreds Thousands Ones Tens Hundreds Thousands Ones Tens Hundreds Ones Tens Hundreds Thousands Ones Tens Hundreds Ones Tens Hundreds Thousands Ones Tens Hundreds Thousands Ones Tens Hundreds Thousands Ones Tens Hundreds Thousands Ones Tens Hundreds Thousands Ones Tens Hundreds Thousands Ones Tens Hundreds Thousands Ones Tens Hundreds Ones Tens Hundreds Thousands Ones Tens Hundreds Thousands Ones Tens Hundreds Ones Tens Hundreds Thousands Ones Tens Hundreds Thousands Ones Tens Hundreds Thousands Ones Tens Hundreds Thousands Ones Tens Hundreds Thousands Ones Tens Hundreds Thousands Ones Tens Hundreds Ones Tens Hundreds Thousands Ones Tens Hundreds Thousands Ones Tens Hundreds Thousands Ones Tens Hundreds Thousands Ones Tens Hundreds Ones Tens Hundreds Thousands Ones Tens Hundreds Ones Tens Hundreds Thousands Ones Tens Hundreds Ones Tens Hundreds Thousands Ones Tens Hundreds Thousands Ones Tens Hundreds Thousands Ones Tens Hundreds Thousands Ones Tens Hundreds Thousands Ones Tens Hundreds Ones Tens Hundreds Thousands Ones Tens Hundreds Thousands Ones Tens Hundreds Thousands Ones Tens Hundreds Thousands Ones Tens Hundreds Ones Tens Hundreds Thousands Ones Tens Hundreds Thousands Ones Tens Hundreds Ones Tens Hundreds Thousands Ones Tens Hundreds Thousands Ones Tens Hundreds Thousands Ones Tens Hundreds Thousands Ones Tens Hundreds Thousands Ones Tens Hundreds Thousands Ones Tens Hundreds Ones Tens Hundreds Thousands Ones Tens Hundreds Thousands Ones Tens Hundreds Thousands Ones Tens Hundreds Thousands Ones Tens Hundreds Ones Tens Hundreds Thousands Ones Tens Hundreds Ones Tens Hundreds Ones Tens Hundreds Thousands Ones Tens Hundreds Thousands Ones Tens Hundreds Thousands Ones Tens Hundreds Thousands Ones Tens Hundreds Thousands Ones Tens Hundreds Thousands Ones Tens Hundreds Ones Tens Hundreds Thousands Ones Tens Hundreds Ones Tens Hundreds Thousands Ones Tens Hundreds Thousands Ones Tens Hundreds Thousands Ones Tens Hundreds Thousands Ones Tens Ones Tens Hundreds Thousands Ones Tens Hundreds Thousands Ones Tens Hundreds Thousands Ones Tens Hundreds Thousands Ones Tens Hundreds Thousands Ones Tens Hundreds Thousands Ones Tens Hundreds Ones Tens Hundreds Thousands Ones Tens Hundreds Thousands Ones Tens Hundreds Thousands Ones Tens Hundreds Thousands Ones Tens Ones Tens Ones Tens Ones Tens Hundreds Thousands Ones Tens Hundreds Thousands Ones Tens Hundreds Thousands Ones Tens Hundreds Thousands Ones Tens Hundreds Thousands Ones Tens Hundreds Ones Tens Hundreds Thousands Ones Tens Hundreds Thousands Ones Tens Hundreds Thousands Ones Tens Hundreds Thousands Ones Tens Hundreds Thousands Ones Tens Hundreds Thousands Ones Tens Hundreds Thousands Ones Tens Hundreds Thousands Ones Tens Hundreds Thousands Ones Tens Hundreds Thousands Ones Tens Hundreds Thousands Ones Tens Hundreds Thousands Ones Tens Hundreds Thousands Ones Tens Hundreds Thousands Ones Tens Hundreds Thousands Ones Tens Hundreds Thousands Ones Tens Hundreds Thousands Which is greater? Circle the bigger number. Which is less? Circle the smaller number. or or or or or or or or 1.
3. 5. 7. 2. 4. 6. 8.

Count, write, compare and color!

Count, write, compare and color!

1. 2. 3. 5.

Teacher Notes

4. 6.

Students should write the numerical value underneath each base ten rod and cube to help them compare the numbers. (e.g. for problem #1 students write 13 and 15 underneath the base ten rods and cubes). Have the students color in the correct symbol and draw the correct symbol in the middle of each problem. Have students practice saying the whole equation outloud, “13 is less than 15” to help reinforce their understanding of the inequality symbols.

Name © Lighthouse Curriculum. Copying strictly prohibited. Let’s learn! 142 Level A Chapter 6 Lesson 7 | Lighthouse Math Try it together! Comparing Numbers Using Greater Than, Less Than, Equal to Ones Tens Hundreds Thousands Ones Tens Hundreds Thousands Ones Tens Hundreds Ones Tens Hundreds Thousands Ones Tens Hundreds Thousands Ones Tens Hundreds Thousands Ones Tens Hundreds Thousands Ones Tens Hundreds Thousands Ones Tens Hundreds Ones Tens Hundreds Thousands Ones Tens Hundreds Thousands Ones Tens Hundreds Thousands Ones Tens Hundreds Thousands Ones Tens Hundreds Thousands Ones Tens Hundreds Ones Tens Hundreds Thousands Ones Tens Hundreds Thousands Ones Tens Hundreds Ones Tens Hundreds Thousands Ones Tens Hundreds Thousands Ones Tens Hundreds Thousands Ones Tens Hundreds Thousands Ones Tens Hundreds Ones Tens Hundreds Thousands Ones Tens Hundreds Thousands Ones Tens Hundreds Ones Tens Hundreds Thousands Ones Tens Hundreds Thousands Ones Tens Hundreds Thousands Ones Tens Hundreds Thousands Ones Tens Hundreds Ones Tens Hundreds Thousands Ones Tens Hundreds Thousands Ones Tens Hundreds Thousands Ones Tens Hundreds Ones Tens Hundreds Thousands Ones Tens Hundreds Thousands Ones Tens Hundreds Thousands Ones Tens Hundreds Thousands Ones Tens Hundreds Thousands Ones Tens Hundreds Thousands Ones Tens Hundreds Thousands Ones Tens Hundreds Ones Tens Hundreds Thousands Ones Tens Hundreds Ones Tens Hundreds Thousands Ones Tens Hundreds Thousands Ones Tens Hundreds Thousands Ones Tens Hundreds Thousands Ones Tens Hundreds Thousands Ones Tens Hundreds Thousands Ones Tens Hundreds Thousands Ones Tens Hundreds Thousands Ones Tens Hundreds Thousands Ones Tens Hundreds Thousands Ones Tens Hundreds Thousands Ones Tens Hundreds Thousands Ones Tens Ones Tens Ones Tens Hundreds Thousands Ones Tens Hundreds Thousands Ones Tens Hundreds Thousands Ones Tens Hundreds Thousands Ones Tens Hundreds Thousands Ones Tens Hundreds Thousands Ones Tens Hundreds Thousands Ones Tens Hundreds Thousands Ones Tens Hundreds Thousands Ones Tens Hundreds Thousands Ones Tens Hundreds Thousands Ones Tens Hundreds Thousands Ones Tens Hundreds Thousands Ones Tens Ones Tens Ones Tens Ones Tens Ones Tens Ones Tens Hundreds Thousands Ones Tens Ones Tens Hundreds Thousands Ones Tens Ones Tens Hundreds Thousands Ones Tens Hundreds Thousands Ones Tens Hundreds Thousands Ones Tens Hundreds Thousands Ones Tens Hundreds Thousands Ones Tens Ones Tens Ones Tens Hundreds Thousands Ones Tens Hundreds Thousands Ones Tens Ones Tens Ones Tens Hundreds Thousands Ones Tens Hundreds Thousands Ones Tens Hundreds Thousands Ones Tens Hundreds Thousands Ones Tens Hundreds Thousands Ones Tens Hundreds Thousands Ones Tens Ones Tens Hundreds Thousands Ones Tens Hundreds Thousands Ones Tens Hundreds Thousands Ones Tens Ones Tens Hundreds Thousands Ones Tens Hundreds Thousands Ones Tens Hundreds Thousands Ones Tens Ones Tens Hundreds Thousands Ones Tens Hundreds Thousands Ones Tens Ones Tens Hundreds Thousands Ones Tens Hundreds Thousands Ones Tens Ones Tens Hundreds Thousands Ones Tens Hundreds Thousands Ones Tens Hundreds Thousands Ones Tens Hundreds Thousands Ones Tens Hundreds Thousands Ones Tens Hundreds Thousands Ones Tens Hundreds Thousands Ones Tens Hundreds Thousands Ones Tens Hundreds Thousands
= = = = = = = = Greater than Less than Equal to 2614
We can use symbols to compare numbers!
>
Ones Tens Hundreds Thousands
© Lighthouse Curriculum. Copying strictly prohibited. Lighthouse Math | Level A Chapter 6 Exercise 7 143 Compare the numbers. Greater than less than, or equal to? Circle the problems that are correct. 88 30 14 61 75 16 52 94 39 21 61 72 21 50 < > > 5. 6. 7. 8. 9. Ones Tens Hundreds Thousands Ones Tens Hundreds Thousands Ones Tens Hundreds Thousands Ones Tens Hundreds Ones Tens Hundreds Thousands Ones Tens Hundreds Thousands Ones Tens Hundreds Thousands Ones Tens Hundreds Thousands Ones Tens Hundreds Ones Tens Hundreds Thousands Ones Tens Hundreds Thousands Ones Tens Hundreds Thousands Ones Tens Hundreds Thousands Ones Tens Hundreds Thousands Ones Tens Hundreds Ones Tens Hundreds Thousands Ones Tens Hundreds Thousands Ones Tens Hundreds Thousands Ones Tens Hundreds Thousands Ones Tens Hundreds Thousands Ones Tens Hundreds Thousands Ones Tens Hundreds Ones Tens Hundreds Thousands Ones Tens Hundreds Ones Tens Hundreds Thousands Ones Tens Hundreds Thousands Ones Tens Hundreds Thousands Ones Tens Hundreds Thousands Ones Tens Hundreds Thousands Ones Tens Hundreds Thousands Ones Tens Hundreds Thousands Ones Tens Ones Tens Hundreds Thousands Ones Tens Ones Tens Hundreds Thousands Ones Tens Hundreds Thousands Ones Tens Ones Tens Hundreds Thousands Ones Tens Hundreds Thousands Ones Tens Ones Tens Hundreds Thousands Ones Tens Hundreds Thousands Ones Tens Ones Tens Hundreds Thousands Ones Tens Hundreds Thousands Ones Tens Ones Tens Hundreds Thousands Ones Tens Hundreds Thousands Ones Tens Hundreds Thousands Ones Tens Hundreds Thousands Ones Tens Ones Tens Hundreds Thousands Ones Tens Hundreds Thousands Count, write, compare and color! = = = = 1. 2. 3. 4.
Name © Lighthouse Curriculum. Copying strictly prohibited. Let’s learn! Try it together! 144 Level A Chapter 6 Lesson 8 | Lighthouse Math Review Teacher Notes Tell students to count ten less and ten more for #1. For #2 have students count the base ten rods and cubes and use the correct symbol to compare the numbers. Be sure to guide them in circling the correct symbol. For #3, tell students to draw the base ten rods and cubes for each number and then compare by using the correct symbol. Write the missing numbers. Count, write, compare and circle. Draw, count, and compare. Count, write, compare and circle the correct symbol. 1. 2. 3. Ones Tens Hundreds Thousands Ones Tens Hundreds Thousands Ones Tens Hundreds Thousands Ones Tens Hundreds Thousands Ones Tens Hundreds Thousands Ones Tens Hundreds Thousands Ones Tens Hundreds Thousands Ones Tens Hundreds Thousands Ones Tens Hundreds Thousands Ones Tens Hundreds Thousands Ones Tens Hundreds Thousands Ones Tens Hundreds Thousands Ones Tens Hundreds Thousands Ones Tens Hundreds Thousands Ones Tens Hundreds Thousands Ones Tens Hundreds Thousands Ones Tens Hundreds Thousands Ones Tens Hundreds Thousands Ones Tens Hundreds Thousands Ones Tens Hundreds Ones Tens Hundreds Ones Tens Hundreds Ones Tens Hundreds Ones Tens Ones Tens Ones Tens Ones Tens Ones Tens Ones Tens Hundreds Thousands Ones Tens Hundreds Thousands Ones Tens Hundreds Thousands Ones Tens Hundreds Thousands Ones Tens Hundreds Thousands Ones Tens Hundreds Thousands Ones Tens Hundreds Thousands Ones Tens Hundreds Thousands Ones Tens Hundreds Thousands Ones Tens Hundreds Thousands Ones Tens Hundreds Thousands Ones Tens Hundreds Thousands 6670 = 46 36 56 19 10 less 10 more 10 less 10 more 10 less 10 more 71 33 64 28 51 64 22 = = < <
©
Lighthouse Math | Level A Chapter 6 Exercise 8 145 Teacher Notes Be sure to walk around and check students' work as there is more than one correct answer for problem #4. Encourage students to use the numbers given in order to complete the comparison.
the missing number. Draw, count, and compare. Choose a correct number to complete the comparison. 1. 3. 4. 43 31 102831475462768598 > < < 3131 17 80 41 19 78 > 12345678910 11121314151617181920 212223242526282930 31 32 3334353637383940 41424344454647484950 515253555657585960 61626364656667686970 717273747577787980 818283848586 87 888990 9192939495969798100
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Write
146 Ones Tens Hundreds Tens Hundreds Thousands Ones Tens Ones Tens Hundreds Thousands Ones Tens Hundreds
Chapter 7

In Chapter 7, we will learn to add multi-digit numbers using base ten blocks and place value.

•Use base ten blocks to add a double-digit and a single-digit numbers

•Use base ten blocks to add double-digit numbers with a multiple of ten

•Draw base ten blocks to solve double-digit addition problems

•Solve addition sentences with multi-digit numbers using place value

•Add fluently within 200 using place value

•Solve vertical and horizontal addition sentences for numbers within 200

•Draw base ten blocks to represent addition story problems

•Write multi-digit addition sentences based on story problems of numbers within 0 to 200

tens ones place value addend sum vertical horizontal 147 Ones Tens Hundreds Thousands Ones Tens Hundreds Ones Tens Tens Hundreds Thousands Ones Tens Hundreds Thousands Ones Tens Hundreds Ones Tens Hundreds
Vocabulary Words

Teacher Notes

Tell students they will be finding how many cubes are in all. Ask students, “If you start with 23 and add 4 more, how many do you have in all?” Meaning, we add them together to find the sum. Be sure to review the “tens” and “ones” place if necessary. For numbers 3-4 be sure to tell students that they will be drawing the base ten rods and cubes for the numbers given and then finding how many they have in all.

Name © Lighthouse Curriculum. Copying strictly prohibited. Let’s learn! Try it together! 148 Level A Chapter 7 Lesson 1 | Lighthouse Math Addition of a Double-Digit and a Single-Digit with Base Ten Blocks Write how many in all! tensones Ones Tens Hundreds Thousands Ones Tens Hundreds Thousands Ones Tens Hundreds Thousands Ones Tens Hundreds Thousands Ones Tens Hundreds Thousands Ones Tens Hundreds Thousands Ones Tens Hundreds Thousands Ones Tens Hundreds Thousands Ones Tens Hundreds Thousands Ones Tens Hundreds Thousands Ones Tens Hundreds Thousands Ones Tens Hundreds Thousands Ones Tens Hundreds Thousands Ones Tens Hundreds Thousands Ones Tens Hundreds Thousands Ones Tens Hundreds Thousands Ones Tens Hundreds Thousands Ones Tens Hundreds Thousands Ones Tens Hundreds Thousands Ones Tens Hundreds Thousands Ones Tens Hundreds Thousands Ones Tens Hundreds Thousands Ones Tens Hundreds Thousands Ones Tens Hundreds Thousands Ones Tens Hundreds Thousands Ones Tens Hundreds Thousands Ones Tens Hundreds Thousands Ones Tens Hundreds Thousands Ones Tens Hundreds Thousands Ones Tens Hundreds Thousands Ones Tens Hundreds Thousands Ones Tens Hundreds Thousands Ones Tens Hundreds Thousands Ones Tens Hundreds Thousands Ones Tens Hundreds Thousands Ones Tens Hundreds Thousands Ones Tens Hundreds Thousands Ones Tens Hundreds Thousands Ones Tens Hundreds Thousands Ones Tens Hundreds Thousands Ones Tens Hundreds Thousands Ones Tens Hundreds Thousands Ones Tens Hundreds Thousands Write how many in all. Draw and solve.
how many
+ = 26 + 2 = 41 +
= + + + + = = + 23427 23 4 27 tensones + tens
ones
tensones +
Write
in all.
4
tens ones
+ +
1.
2.
3.
4.
© Lighthouse Curriculum. Copying strictly prohibited. Lighthouse Math | Level A Chapter 7 Exercise 1 149 Ones Tens Hundreds Thousands Ones Tens Hundreds Thousands Ones Tens Hundreds Thousands Ones Tens Hundreds Thousands Ones Tens Hundreds Thousands Ones Tens Hundreds Thousands Ones Tens Hundreds Thousands Ones Tens Hundreds Thousands Ones Tens Hundreds Thousands Ones Tens Hundreds Thousands Ones Tens Hundreds Thousands Ones Tens Hundreds Thousands Ones Tens Hundreds Thousands Ones Tens Hundreds Thousands Ones Tens Hundreds Thousands Ones Tens Hundreds Thousands Ones Tens Hundreds Thousands Ones Tens Hundreds Thousands Ones Tens Hundreds Thousands Ones Tens Hundreds Thousands Ones Tens Hundreds Thousands Ones Tens Hundreds Thousands Ones Tens Hundreds Thousands Ones Tens Hundreds Thousands Write how many in all. Write how many in all. Draw and solve. Find the missing number. Draw and solve. 62 + 5 = 33 + = 37 52 + = 55 50 + 6 = 81 + = 88 90 + = 96 + +
+
+ + = = tensones + tens tens tens tens tens tens ones ones ones ones ones ones +
+
tensones + 1.
+
+ +
+ +
+ +
3. 5. 7. 2. 4. 6. 8.

Write how many in all.

Rewrite the equation. Write how many in all.

4. 3. 14 + 5 = 50 + 4 =

Teacher Notes

Help students count by tens and ones before the lesson. Then, explain how vertical addition works and how it makes adding these numbers easier! You simply add the ones together and then write how many tens you have to find the sum. Emphasize to always start by adding the ones first. Encourage students to use their fingers, hundreds chart, or cubes to help them add the ones together. Guide students in rewriting the equations vertically reminding them of the importance of placing the numbers in the correct place value column.

Name © Lighthouse Curriculum. Copying strictly prohibited. Let’s learn! Let’s practice more addition! Start with the ones Try it together! 150 Level A Chapter 7 Lesson 2 | Lighthouse Math 23 + 2 3 26 12 + 2 7 60 + 2 8 35 + 2 2 81 + 2 4 51 + 2 5 73 + 2 1 14 + 2 5 19 + 20 Addition with Double-Digit and Single-Digit Numbers
1.
2.

Write how many in all.

Rewrite the equation. Write how many in all.

Fill in the blanks to fix the mistake.

Lighthouse Math | Level A Chapter 7 Exercise 2 151 10 + 2 7 91 + 2 8 21 + 2 5 86 + 2 2 32 + 2 3 73 + 2 4 64 + 24 68 22 + 27 29 72 + 2 5 74 72 + 2 5 41 + 2 4 49 41 + 20 49 00 + 20 00 + 20
©
Lighthouse Curriculum. Copying strictly prohibited.
5. 3. 7. 6. 4. 8. 64 + 4 = 22 + 7 = 40 + 9 = 76 + 3 = 29
1. 2.
Name © Lighthouse Curriculum. Copying strictly prohibited. Let’s learn! Try it together! Let’s add multiples of ten! 152 Level A Chapter 7 Lesson 3 | Lighthouse Math Add with Multiples of Ten Using Base Ten Blocks tensones + 44 10 54 Ones Tens Hundreds Thousands Ones Tens Hundreds Thousands Ones Tens Hundreds Thousands Ones Tens Hundreds Thousands Ones Tens Hundreds Thousands Ones Tens Hundreds Thousands Ones Tens Hundreds Thousands Ones Tens Hundreds Thousands Ones Tens Hundreds Thousands Ones Tens Hundreds Thousands Ones Tens Hundreds Thousands Ones Tens Hundreds Thousands Ones Tens Hundreds Thousands Ones Tens Hundreds Thousands Ones Tens Hundreds Thousands Ones Tens Hundreds Thousands Ones Tens Hundreds Thousands Ones Tens Hundreds Thousands 4410+=54 Teacher Notes Tell students they will be adding multiples of tens to double-digit numbers. When adding multiples of tens, we rewrite the equation vertically, placing the numbers in the correct place value columns. Ask students, “When you start with 44 and add 10 more, how many do you have in all? What is the sum?” [54] Write how many in all. Write how many in all. Draw and solve. 1. 2. 3. 4. Ones Tens Hundreds Thousands Ones Tens Hundreds Thousands Ones Tens Hundreds Thousands Ones Tens Hundreds Thousands Ones Tens Hundreds Thousands Ones Tens Hundreds Thousands Ones Tens Hundreds Thousands Ones Tens Hundreds Thousands Ones Tens Hundreds Thousands Ones Tens Hundreds Thousands Ones Tens Hundreds Thousands Ones Tens Hundreds Thousands Ones Tens Hundreds Thousands Ones Tens Hundreds Thousands Ones Tens Hundreds Thousands Ones Tens Hundreds Thousands Ones Tens Hundreds Thousands Ones Tens Hundreds Thousands + + = = tensones + tensones + 26 + 40 = 35 + 60 = + + tens tens ones ones + +
© Lighthouse Curriculum. Copying strictly prohibited. Lighthouse Math | Level A Chapter 7 Exercise 3 153 Ones Tens Hundreds Thousands Ones Tens Hundreds Thousands Ones Tens Hundreds Thousands Ones Tens Hundreds Thousands Ones Tens Hundreds Thousands Ones Tens Hundreds Thousands Ones Tens Hundreds Thousands Ones Tens Hundreds Thousands Ones Tens Hundreds Thousands Ones Tens Hundreds Thousands Ones Tens Hundreds Thousands Ones Tens Hundreds Thousands Ones Tens Hundreds Thousands Ones Tens Hundreds Thousands Ones Tens Hundreds Thousands Ones Tens Hundreds Thousands Ones Tens Hundreds Thousands Ones Tens Hundreds Thousands Ones Tens Hundreds Thousands Ones Tens Hundreds Thousands Ones Tens Hundreds Thousands Ones Tens Hundreds Thousands Write how many in all. Write how many in all. Draw and solve. Find the missing number. Draw and solve. 64 + 10 = 25 + 50 = 19 + 80 = 56 + = 96 38 + 30 = 21 + = 81 + + + + + + + + = = tensones + tens tens tens tens tens tens ones ones ones ones ones ones + + + + + + 56 96 21 81 tensones + 1.
5.
6.
3.
7. 2. 4.
8.

Don’t forget to start at the ones place value!

tensones + 4 4 10 54

tensones + 13 30 43

tensones + 26 30

tensones + 57 30

tensones + 12 70

tensones + 19 50

tensones + 73 20

Teacher Notes

Remind students that in order to add a double-digit and a multiple of ten, the tens and ones place value must line up. Have students point to the ones place value. Then, have students point to the tens place value. Explain to students that they still must add the numbers in the ones place value, even though there is a zero.

Name © Lighthouse Curriculum. Copying strictly prohibited.
it together!
learn! 154 Level A Chapter 7 Lesson 4 | Lighthouse Math
Try
Let’s
Addition of Double-Digit Numbers and Multiples of Ten
Start adding here
Circle the tens place value. Add the ones. Write the sum. 1. 2.

Circle the tens place value. Add the ones. Write the sum.

Rewrite the problem in vertical form. Write the sum.

Circle which addition sentences are wrong.

©
Lighthouse Math | Level A Chapter 7 Exercise 4 155
tensones + tensones + tensones +
30 39
+
50 96 tensones
92
+
40
tensones +
Lighthouse Curriculum. Copying strictly prohibited.
tensones + 44 50 tensones + 36 20
63
tensones
46
+ 72 20
tensones
34 10
tensones + 25 60 tensones + 41 30 tensones + 15 50
53 40
1.
4. 47 +
78 + 10
2. 3. 5.
20 =
=

Write how many in all.

Teacher Notes

Show students how a tens rod = 10 cubes, just like they’ve been drawing, but easier! Explain that students don’t need to draw ten cubes when they are drawing a ten, they just need to make a tall thin line to show it’s a ten, and the ones cube can be a small circle or square, to show they are ones. If possible, help students count by tens and ones using actual tens rod (any group of ten cubes stuck together) and ones.. Have students show their work by using actual tens and ones, if possible, before drawing the tens and ones on paper.

Name © Lighthouse Curriculum. Copying strictly prohibited. Let’s learn! 156 Level A Chapter 7 Lesson 1 | Lighthouse Math Try it together! 156 Level A Chapter 7 Lesson 5 | Lighthouse Math 150 + 22 = 172 93 + 26 = 145 + 32 = 14 + 50 = += Ones Tens Hundreds Thousands Ones Tens Hundreds Thousands Ones Tens Hundreds Thousands Ones Tens Hundreds Thousands Ones Tens Hundreds Thousands Ones Tens Hundreds Thousands Ones Tens Hundreds Thousands Ones Tens Hundreds Thousands Ones Tens Hundreds Thousands Ones Tens Hundreds Thousands Ones Tens Hundreds Thousands Ones Tens Hundreds Thousands Ones Tens Hundreds Thousands Ones Tens Hundreds Thousands Ones Tens Hundreds Thousands Ones Tens Hundreds Ones Tens Hundreds Thousands Ones Tens Hundreds Ones Tens Hundreds Thousands Ones Tens Hundreds Tens Hundreds Thousands Ones Tens Hundreds Thousands Ones Tens Hundreds Thousands Ones Tens Hundreds Thousands Ones Tens Hundreds Thousands Tens Hundreds Thousands Ones Tens Hundreds Thousands Ones Tens Hundreds Thousands Ones Tens Hundreds Thousands Ones Tens Ones Tens Hundreds Thousands Ones Tens Thousands Ones Tens Hundreds Thousands Ones Tens Ones Tens Hundreds Thousands Ones Tens Hundreds Thousands Ones Hundreds Ones Hundreds Sums Through 200 with Base Ten Blocks
many tens? How many ones?
How
1. 2. 3.
+ Ones Tens Hundreds Thousands Ones Tens Hundreds Thousands Ones Tens Hundreds Thousands Ones Tens Hundreds Thousands Ones Tens Hundreds Thousands Ones Tens Hundreds Thousands Ones Tens Hundreds Thousands Ones Tens Hundreds Thousands Ones Tens Hundreds Thousands Ones Tens Hundreds Thousands Ones Tens Hundreds Thousands Ones Tens Hundreds Thousands Ones Tens Hundreds Thousands Ones Tens Hundreds Thousands Ones Tens Hundreds Thousands Ones Tens Hundreds Thousands Ones Tens Hundreds Thousands Ones Tens Hundreds Thousands Ones Tens Hundreds Thousands Ones Tens Hundreds Thousands + Ones Tens Hundreds Thousands Ones Tens Hundreds Thousands Ones Tens Hundreds Thousands Ones Tens Hundreds Thousands Ones Tens Hundreds Thousands Ones Tens Hundreds Thousands Ones Tens Hundreds Thousands Ones Tens Hundreds Thousands Ones Tens Hundreds Thousands Ones Tens Hundreds Thousands Ones Tens Hundreds Thousands Ones Tens Hundreds Thousands Ones Tens Hundreds Thousands Ones Tens Hundreds Thousands Ones Tens Hundreds Thousands Ones Tens Hundreds Thousands Ones Tens Hundreds Thousands Ones Tens Hundreds Thousands Ones Tens Hundreds Thousands Ones Tens Hundreds Thousands Ones Tens Hundreds Thousands Ones Tens Hundreds Thousands Ones Tens Hundreds Thousands Ones Tens Hundreds Thousands + Ones Tens Hundreds Thousands Ones Tens Hundreds Thousands Ones Tens Hundreds Thousands Ones Tens Hundreds Thousands Ones Tens Hundreds Thousands Ones Tens Hundreds Thousands Ones Tens Hundreds Thousands Ones Tens Hundreds Thousands Ones Tens Hundreds Thousands Ones Tens Hundreds Thousands

Draw. Write the sum.

Lighthouse Math | Level A Chapter 7 Exercise 1 157 1. 3. 5. 7. 9. 11. 2. 4. 6. 8. 10. 12. 5 32 + 12 = 18 + 31 = 64 + 21 = 14 + 72 = 62 + 31
48 + 11
82 + 13 = 10 + 41 = 29 + 40 = 53 + 12 = 81
16
© Lighthouse Curriculum. Copying strictly prohibited.
=
=
+
= 22 + 23 =

Write

Teacher Notes

Direct students to point at the ones place value first. Encourage them to cover up the red hundreds column and the blue tens column. This way they can focus on the ones circled in yellow. Ask students: What is the sum of 3 and 6? [9] Then direct students to move to the tens and then hundreds column, asking for the sum for each. Finally, ask students: What is the sum of 143+26? [169] Explain that this sum is the same for both the vertical and horizontal addition sentences. Guide students to use their hand, sticky note or index card to isolate one column at a time.

Name © Lighthouse Curriculum. Copying strictly prohibited. Let’s learn! Try it together! Line up the place values to add! tens hundreds ones + 143 26 169 + 127 1 + 192 6 + 130 9 + 52 30 + 82 17 + 124 43 + 152 41 193 + 58 40 + 92 3 Start adding here 158 Level A Chapter 7 Lesson 6 | Lighthouse Math Addition Fluency with Numbers Less than 200 143 + 26 = 169
how many in all.
1. 2. 3.

Add. Write the sum. Write the missing digit for each addition problem.

Rewrite the problem. Add. Write the sum. Fix the addition problem. Draw to explain.

110 + 24 = 350

+ 178 20 + + 11
+ 54
+
+
Lighthouse Math | Level A Chapter 7 Exercise 6 159 84 + 12 = 101 + 5 = 137 + 32 =
© Lighthouse Curriculum. Copying strictly prohibited.
6 78
30
+ 25 0 75 +
152 25 + + 32 2 56
1. 2. 3. 4. 5. 6.

1. 2. 3.

Let’s learn!

137 + 22 159

Sums through 200

Using Vertical Equations

Try it together!

Write how many in all.

131 + 11

175 + 23

155 + 23

132 + 27

162 + 33

183 + 15

146 + 42

118 + 51

124 + 31

Teacher Notes

If possible, help students count by tens and ones using actual tens and ones, before starting the lesson. As a class, count by tens to 200. Then explain how the vertical equation works and how it makes adding greater numbers so much easier! Work through the examples modeling with tens and ones, so students see how the equation matches the adding of tens and ones. Emphasize how when using this special algorithm, we always start by adding the ones first. Help students use their fingers or other objects to help them count each place value, starting with the ones. Watch for students who need to count out loud in order to add accurately. Give students an index card to cover the columns so they can focus on one place value at a time.

Name © Lighthouse Curriculum. Copying strictly prohibited.
160 Level A Chapter 7 Lesson 1 | Lighthouse Math
160 Level A Chapter 7 Lesson 7 | Lighthouse Math

Teacher Notes

We can add the ones together. We can add the tens together. Use these columns to help you. Even if we don’t have images to count, we can add each column. Start with the ones column. These would be the yellow cubes. Then add the tens. This is like counting by tens. Finally, add the hundreds column. Now what is the answer for how many in all?

Lighthouse Math | Level A Chapter 7 Exercise 1 161 1. 2. 3. 4. 5. 7 Write how many in all. 155 + 43 108 + 71 139 + 10 163 + 31 192 + 3 167 + 11 197 + 1 112 + 47 144 + 44 178 + 20 189 + 0 100 +100 127 + 42 152 + 17 181 + 17
© Lighthouse Curriculum. Copying strictly prohibited.

How many did he bake in all?

Abraham picked 13 .

He picked 41 more.

How many total did Abraham pick?

Sam has 26 . He got 23 more.

How many does he have all together?

Mark picked 24 .

He picked 15 more.

How many did he pick all together?

Name © Lighthouse Curriculum. Copying strictly prohibited. Let’s learn! Try it together! 162 Level A Chapter 7 Lesson 8 | Lighthouse Math Addition Story Problems with Double-Digit Numbers Teacher Notes Read the word problem to students. Ask students: What clue words or key words tell us this is an addition problem? [in all] What are the two addends in the problem? [12 and 34] Guide students to write the addition sentence. Ask students: What is the sum of 12 and 34? [46] So, Flash baked 46 cookies all together.
baked 12
Monday.
Flash
on
He baked 34 on Tuesday.
tensones + 12
tensones
tensones + tensones
Ones Tens Hundreds Thousands Ones Tens Hundreds Thousands Ones Tens Hundreds Thousands Ones Tens Hundreds Thousands Ones Tens Hundreds Thousands Ones Tens Hundreds Thousands Ones Tens Hundreds Thousands Ones Tens Hundreds Thousands Ones Tens Hundreds Thousands Ones Tens Hundreds Thousands Let’s add!
the story problem. Check with tens and ones.
34 46
+ 13 41
+
Solve
1. 2. 3.

Solve the story problem. Draw to check with tens and ones.

tensones

Tim saw 48 . He saw 51 more .

How many are there all together?

Sam saw 3 . He saw 21 more .

How many are there in all?

John saw 62 in the river. He saw 13 in the pond. In total, how many did he see?

tensones

Ezrah planted 31 . He planted 17 more. How many did he plant?

Write and solve your own story problem.

I had . I made more . How many do I have in all?

Lighthouse Math | Level A Chapter 7 Exercise 8 163
© Lighthouse Curriculum. Copying strictly prohibited.
+
tensones +
+
tensones +
tensones +
1. 2. 3. 4. 5.

Chapter 8

164

In Chapter 8, we will learn to subtract multi-digit numbers using base ten blocks and place value.

•Use base ten blocks to subtract a double-digit and a single-digit number

•Use base ten blocks to subtract a double-digit and a multiple of ten

•Draw base ten blocks to solve double-digit subtraction problems

•Solve subtraction sentences with multi-digit numbers using place value

•Subtract fluently within 200 using place value without regrouping

•Solve vertical and horizontal subtraction sentences for numbers within 200

•Draw base ten blocks to represent subtraction story problems

•Write multi-digit addition and subtraction sentences based on story problems of numbers within 0 to 200

•Determine if a word problem is an addition or subtraction problem

Vocabulary Words

tens ones place value subtract di erence vertical horizontal 165 Ones Tens Hundreds Thousands Ones Tens Hundreds Thousands Ones Tens Hundreds Thousands Ones Tens Hundreds Thousands Ones Tens Hundreds Thousands Ones Tens Hundreds Thousands Ones Tens Hundreds Thousands Ones Tens Hundreds Thousands Ones Tens Hundreds Thousands Ones Tens Hundreds Thousands

Teacher Notes

Explain to students that they can use base ten blocks to subtract double-digit numbers. Remind students that to subtract means to take away. When solving subtraction with base ten blocks, tell students to make the first number with their base

blocks and to take away, or remove, the second number. After subtracting the blocks, count the value

with students. Encourage students to skip count by tens for their tens rods and to

Name © Lighthouse Curriculum. Copying strictly prohibited. Let’s learn! Try it together! 166 Level A Chapter 8 Lesson 1 | Lighthouse Math Subtraction of a Double-Digit and a Single-Digit with Base Ten Blocks 10, 20, 30, 40, 50 51, 52 tensones — 56 4 52 tensones — 37 2 35 tensones — 75 1 tensones — 29 6 Cross o the ones and count what’s left!
of the blocks out loud
on
ones for the unit cubes. Cross out to subtract. Write how many are left over. 1. 2. 3. Ones Tens Hundreds Thousands Ones Tens Hundreds Thousands Ones Tens Hundreds Thousands Ones Tens Hundreds Thousands Ones Tens Hundreds Thousands tens ones Ones Tens Hundreds Thousands Ones Tens Hundreds Thousands Ones Tens Hundreds Thousands Ones Tens Hundreds Thousands Ones Tens Hundreds Thousands Ones Tens Hundreds Thousands Ones Tens Hundreds Thousands Ones Tens Hundreds Thousands Ones Tens Hundreds Thousands Ones Tens Hundreds Thousands Ones Tens Hundreds Thousands Ones Tens Hundreds Thousands Ones Tens Hundreds Thousands Ones Tens Hundreds Thousands Ones Tens Hundreds Thousands Ones Tens Hundreds Thousands Ones Tens Hundreds Thousands Ones Tens Hundreds Thousands Ones Tens Hundreds Thousands Ones Tens Hundreds Thousands Ones Tens Hundreds Thousands Ones Tens Hundreds Thousands Ones Tens Hundreds Thousands Ones Tens Hundreds Thousands Ones Tens Hundreds Ones Tens Hundreds Ones Tens Hundreds Ones Tens Hundreds Ones Tens Hundreds Ones Tens Hundreds Ones Tens Hundreds Ones Tens Hundreds Ones Tens Hundreds Ones Tens Hundreds Ones Tens Hundreds Thousands Ones Tens Hundreds Thousands Ones Tens Hundreds Thousands Ones Tens Hundreds Thousands Ones Tens Hundreds Thousands
ten
count
by

to subtract. Write how many are left over.

© Lighthouse Curriculum. Copying strictly prohibited. Lighthouse Math | Level A Chapter 8 Exercise 1 167 tensones — 26 1 tensones — 46 5 tensones —
tensones —
2 tensones — 55 4 tensones — 78 6 tensones — 98 8 tensones — 17 3
27 2 7
27
Ones Tens Hundreds Thousands Ones Tens Hundreds Thousands Ones Tens Hundreds Thousands Ones Tens Hundreds Thousands Ones Tens Hundreds Thousands Ones Tens Hundreds Thousands Ones Tens Hundreds Thousands Ones Tens Hundreds Thousands Ones Tens Hundreds Thousands Ones Tens Hundreds Ones Tens Hundreds Ones Tens Hundreds Ones Tens Ones Tens Hundreds Ones Tens Ones Tens Hundreds Ones Tens Ones Tens Hundreds
Draw
Check the subtraction problem. Circle the wrong part. Fix it. 1. 4. 2. 5. 3. 6. 7.

Teacher Notes

Remind students that in order to subtract a double-digit and single-digit number, the tens and ones place value must line up. Have students point to the ones place value. Then, have students point to the tens place value. Explain to students that when there is no number in the tens place, this means they are subtracting zero or no tens. Model how to rewrite a horizontal subtraction problem into a vertical problem by lining up each place value.

Name © Lighthouse Curriculum. Copying strictly prohibited. Let’s learn! 168 Level A Chapter 8 Lesson 2 | Lighthouse Math We can line up the place value by writing the problem in the vertical form! Subtraction of a Double-Digit and a Single-Digit Number 39 - 3 = horizontal vertical Try it together! tensones — 39 3 36 tensones — 87 4 83 tensones — 98 1 tensones — 12 1 tensones — 25 4 tensones — 76 1 tensones — 53 3 36 Circle the ones place value. Subtract. Write the di erence.
1. 2.

Circle the ones place value. Subtract. Write the di erence.

Rewrite the problem in vertical form. Write the di erence.

Read the riddle. Solve for the mystery number.

I am a two digit number. I have a 3 in my tens place. I am the same number as the di erence of 37-5.

What number am I? I am

©
Lighthouse Math | Level A Chapter 8 Exercise 2 169 79 - 2 = 56 - 4 = tensones — 97 1 tensones — 15 3 tensones — 82 2 tensones — 29 1 tensones — 78 1 tensones — 55 1 tensones — tensones — tensones —
Lighthouse Curriculum. Copying strictly prohibited.
1. 2.
3. 5. 4.

Teacher Notes

Explain to students that they can use base ten blocks to subtract double-digit numbers. Remind students that to subtract means to take away. When solving subtraction with base ten blocks, tell students to make the first number with their base ten blocks and to take away, or remove, the second number. After subtracting the blocks, count the value of the blocks out loud with students. Encourage students to skip count by tens for their tens rods and to count on by ones for the unit cubes.

Name © Lighthouse Curriculum. Copying strictly prohibited. Try it together! Let’s learn! 170 Level A Chapter 8 Lesson 3 | Lighthouse Math Use Base Ten Blocks to Subtract a Multiple of Ten 10, 20 21, 22, 23, 24... tensones — 54 30 24 Cross o the tens and count what’s left! Ones Tens Hundreds Thousands Ones Tens Hundreds Thousands Ones Tens Hundreds Thousands Ones Tens Hundreds Thousands Ones Tens Hundreds Thousands tens ones Ones Tens Hundreds Thousands Ones Tens Hundreds Thousands Ones Tens Hundreds Thousands Ones Tens Hundreds Thousands tensones — 28 10 18 tensones — 76 40 tensones — 49 20 Cross out to subtract. Write how many are left over. 1. 2. 3. Ones Tens Hundreds Thousands Ones Tens Hundreds Thousands Ones Tens Hundreds Thousands Ones Tens Hundreds Thousands Ones Tens Hundreds Thousands Ones Tens Hundreds Thousands Ones Tens Hundreds Thousands Ones Tens Hundreds Thousands Ones Tens Hundreds Thousands Ones Tens Hundreds Thousands Ones Tens Hundreds Ones Tens Hundreds Thousands Ones Tens Hundreds Thousands Ones Tens Hundreds Ones Tens Hundreds Ones Tens Ones Tens Hundreds Ones Tens Ones Tens Hundreds Ones Tens Ones Tens Hundreds Ones Tens Ones Tens Hundreds
Ones Tens Hundreds Thousands Ones Tens Hundreds Thousands Ones Tens Hundreds Thousands Ones Tens Hundreds Thousands Ones Tens Hundreds Thousands Ones Tens Hundreds Thousands Ones Tens Hundreds Thousands Ones Tens Hundreds Thousands Ones Tens Hundreds Thousands Ones Tens Hundreds Thousands Ones Tens Hundreds Thousands Ones Tens Hundreds Thousands Ones Tens Hundreds Thousands
© Lighthouse Curriculum. Copying strictly prohibited. Lighthouse Math | Level A Chapter 8 Exercise 3 171 Ones Tens Hundreds Thousands Ones Tens Hundreds Thousands Ones Tens Hundreds Thousands Ones Tens Hundreds Thousands Ones Tens Hundreds Thousands Ones Tens Hundreds Thousands Ones Tens Hundreds Thousands Ones Tens Hundreds Thousands Ones Tens Hundreds Thousands Ones Tens Hundreds Thousands Ones Tens Hundreds Thousands Ones Tens Hundreds Thousands Ones Tens Hundreds Thousands tensones — 52 10 42 tensones — 23 20 tensones — 66 20 tensones — 74 60 tensones — 97 10 tensones — 31 20 Draw to subtract. Write how many are left over. Find the missing number in the subtraction problem. Show your thinking with the base ten blocks. 1. 4. 2. 5. 3. 6. 7. tensones — 67 47

Teacher Notes

Remind students that in order to subtract double-digit numbers, the tens and ones place value must line up. Have students point to the ones place value. Then, have students point to the tens place value. Explain to students that when there is a 0 in the ones place, they still need to subtract.

Name © Lighthouse Curriculum. Copying strictly prohibited. Try it together! 172 Level A Chapter 8 Lesson 4 | Lighthouse Math
and Multiples
are no ones to subtract! Let’s learn! tensones — 54 30 24
Subtraction with a Double-Digit Number
of Ten There
tensones — 93 70 23 tensones — 64 30 tensones — 75 50 tensones — 87 10 tensones — 29 20 tensones — 53 40
the tens place value. Subtract. Write the di erence. 1. 2.
Circle

Subtract. Write the di erence.

Rewrite the problem in vertical form. Write the di erence.

Write the subtraction problem. Solve for the di erence.

25

Matt had 25

He gave away 20. How many are left? left:

start with take away left

©
Lighthouse Math | Level A Chapter 8 Exercise 4 173 29
10 = 83 - 30 = tensones — 93 70 tensones — 64 30 tensones — 75 50 tensones — 87 10 tensones — 29 20 tensones — 53 40 tensones — tensones — tensones —
Lighthouse Curriculum. Copying strictly prohibited.
-
1. 2. 3. 5. 4.

Teacher Notes

Explain that using tens and ones can help us subtract greater numbers. If possible, help students count by tens and ones using actual ten rods (any group of ten cubes stuck together) and ones, before starting the lesson, from 1-200. Have students show their work by using actual tens and ones, if possible, before crossing out the tens and ones on paper. Show students how to count the tens first, and then the ones, when counting how many are left over. Watch for students who need to count out loud in order to count accurately.

Name © Lighthouse Curriculum. Copying strictly prohibited. Let’s learn! Try it together! 174 Level A Chapter 8 Lesson 1 | Lighthouse Math
Subtraction Using Greater Numbers with Di erences Less than 200 1. 2.
174 Level A Chapter 8 Lesson 5 | Lighthouse Math
92
Ones Tens Hundreds Thousands Ones Tens Hundreds Thousands Ones Tens Hundreds Thousands Ones Tens Hundreds Thousands Ones Tens Hundreds Thousands Ones Tens Hundreds Thousands Ones Tens Hundreds Thousands Ones Tens Hundreds Thousands Ones Tens Hundreds Thousands Ones Tens Hundreds Thousands Ones Tens Hundreds Thousands
45 − 12
15 − 4 = 148 − 35 = 177 − 83 = Ones Tens Hundreds Thousands Ones Tens Hundreds Thousands Ones Tens Hundreds Thousands Ones Tens Hundreds Thousands Ones Tens Hundreds Thousands Ones Tens Hundreds Thousands Ones Tens Hundreds Thousands Ones Tens Hundreds Thousands Ones Tens Hundreds Thousands Ones Tens Hundreds Thousands Ones Tens Hundreds ThousandsOnes Tens Hundreds Thousands Ones Tens Hundreds Thousands Ones Tens Hundreds Thousands Ones Tens Hundreds Thousands Ones Tens Hundreds Thousands Ones Tens Hundreds Thousands Ones Tens Hundreds Thousands Ones Tens Hundreds Thousands Ones Tens Hundreds Thousands Ones Tens Hundreds Thousands Ones Tens Hundreds Thousands Ones Tens Hundreds Thousands Ones Tens Hundreds Thousands Ones Tens Hundreds Thousands Ones Tens Hundreds Thousands Ones Tens Hundreds Thousands Ones Tens Hundreds Thousands Ones Tens Hundreds Thousands Ones Tens Hundreds Thousands Ones Tens Hundreds Thousands Ones Tens Hundreds Thousands Ones Tens Hundreds Thousands Ones Tens Hundreds Thousands Ones Tens Hundreds Thousands Ones Tens Hundreds Thousands Ones Tens Hundreds Thousands Ones Tens Hundreds Thousands Ones Tens Hundreds Thousands Ones Tens Hundreds Thousands Ones Tens Hundreds Thousands Ones Tens Hundreds Thousands Ones Tens Hundreds Thousands Ones Tens Hundreds Thousands Ones Tens Hundreds Thousands Ones Tens Hundreds Thousands Ones Tens Hundreds Thousands Ones Tens Hundreds Thousands Ones Tens Hundreds Thousands Ones Tens Hundreds Thousands Ones Tens Hundreds Thousands Ones Tens Hundreds Thousands Ones Tens Hundreds Thousands Ones Tens Hundreds Thousands Ones Tens Hundreds Thousands Ones Tens Hundreds Thousands Ones Tens Hundreds Thousands Ones Tens Hundreds Thousands Ones Tens Hundreds Thousands Ones Tens Hundreds Thousands Ones Tens Hundreds Thousands
3. 4.
Write how many are left over. Show with tens and ones.
− 51 = 41
10, 20, 30, 40, 50, 60, 70, 80, 90...
=

Write

2. 4. 6. 8. 10.

© Lighthouse Curriculum. Copying strictly prohibited. Lighthouse Math | Level A Chapter 8 Exercise 1 175 5 99 − 65 = 58 − 44 = 99 − 67 = 149 − 49 = 88 − 44 = 36 − 30 = 138 − 56 = 129 − 68 = 98 − 37 = 54 − 22 = Ones Tens Hundreds Thousands Ones Tens Hundreds Thousands Ones Tens Hundreds Thousands Ones Tens Hundreds Thousands Ones Tens Hundreds Thousands Ones Tens Hundreds Thousands Ones Tens Hundreds Thousands Ones Tens Hundreds Thousands Ones Tens Hundreds Thousands Ones Tens Hundreds Thousands Ones Tens Hundreds Thousands Ones Tens Hundreds Thousands Ones Tens Hundreds Thousands Ones Tens Hundreds Thousands Ones Tens Hundreds Thousands Ones Tens Hundreds Thousands Ones Tens Hundreds Thousands Ones Tens Hundreds Thousands Ones Tens Hundreds Thousands Ones Tens Hundreds Thousands Ones Tens Hundreds Thousands Ones Tens Hundreds Thousands Ones Tens Hundreds Thousands Ones Tens Hundreds Thousands Ones Tens Hundreds Thousands Ones Tens Hundreds Thousands Ones Tens Hundreds Thousands Ones Tens Hundreds Thousands Ones Tens Hundreds Thousands Ones Tens Hundreds Thousands Ones Tens Hundreds Thousands Ones Tens Hundreds Thousands Ones Tens Hundreds Thousands Ones Tens Hundreds Thousands Ones Tens Hundreds Thousands Ones Tens Hundreds Thousands Ones Tens Hundreds Thousands Ones Tens Hundreds Thousands Ones Tens Hundreds Ones Tens Hundreds Ones Tens Hundreds Ones Tens Hundreds Ones Tens Hundreds Ones Tens Hundreds Ones Tens Hundreds Ones Tens Hundreds Ones Tens Hundreds Thousands Ones Tens Hundreds Thousands Ones Tens Hundreds Thousands Ones Tens Hundreds Thousands Ones Tens Hundreds Ones Tens Hundreds Thousands Ones Tens Hundreds Ones Tens Hundreds Thousands Ones Tens Hundreds Ones Tens Hundreds Thousands Ones Tens Hundreds Thousands Ones Tens Hundreds Thousands Ones Tens Hundreds Thousands Ones Tens Hundreds Thousands Ones Tens Hundreds Thousands Ones Tens Hundreds Thousands Ones Tens Hundreds Thousands Ones Tens Hundreds Thousands Ones Tens Hundreds Thousands Ones Tens Hundreds Thousands Ones Tens Hundreds Ones Tens Hundreds Ones Tens Ones Tens Ones Tens Ones Tens Ones Tens Hundreds Ones Tens Hundreds Ones Tens Hundreds Ones Tens Hundreds Ones Tens Hundreds Thousands Ones Tens Hundreds Thousands Ones Tens Hundreds Thousands Ones Tens Hundreds Thousands Ones Tens Hundreds Thousands Ones Tens Hundreds Thousands Ones Tens Hundreds Thousands Ones Tens Hundreds Thousands Ones Tens Hundreds Thousands Ones Tens Hundreds Thousands Ones Tens Hundreds Thousands Ones Tens Hundreds Thousands Ones Tens Hundreds Thousands Ones Tens Hundreds Thousands Ones Tens Hundreds Thousands Ones Tens Hundreds Thousands Ones Tens Hundreds Thousands Ones Tens Hundreds Thousands Ones Tens Hundreds Thousands Ones Tens Hundreds Thousands Ones Tens Hundreds Thousands Ones Tens Hundreds Thousands Ones Tens Hundreds Thousands Ones Tens Hundreds Thousands Ones Tens Hundreds Thousands Ones Tens Hundreds Thousands Ones Tens Hundreds Thousands Ones Tens Hundreds Thousands Ones Tens Hundreds Thousands Ones Tens Hundreds Thousands Ones Tens Hundreds Thousands Ones Tens Hundreds Thousands Ones Tens Hundreds Thousands Ones Tens Hundreds Thousands Ones Tens Hundreds Thousands Ones Tens Hundreds Thousands Ones Tens Hundreds Thousands Ones Tens Hundreds Thousands Ones Tens Hundreds Thousands Ones Tens Hundreds Thousands Ones Tens Hundreds Thousands Ones Tens Hundreds Thousands Ones Tens Hundreds Thousands Ones Tens Hundreds Thousands Ones Tens Hundreds Thousands Ones Tens Hundreds Thousands Ones Tens Hundreds Thousands Ones Tens Hundreds Thousands Ones Tens Hundreds Thousands Ones Tens Hundreds Thousands Ones Tens Hundreds Thousands Ones Tens Hundreds Thousands Ones Tens Hundreds Ones Tens Hundreds Ones Tens Hundreds Ones Tens Hundreds Ones Tens Hundreds Ones Tens Hundreds Ones Tens Hundreds Ones Tens Hundreds Ones Tens Hundreds Ones Tens Hundreds
the answer. Show
1. 3. 5. 7. 9. ones.
with tens and
Draw tens and ones. Write the di erence.

Subtract. Write the di

1.

Teacher Notes

Name © Lighthouse Curriculum. Copying strictly prohibited. 176 Level A Chapter 8 Lesson 6 | Lighthouse Math Subtraction Fluency with Differences Less than 200 Line up the places to help subtract! tensones — 138 24 114 — 197 63 134 — 56 20 — 22 10 — 83 12 — 149 4 — 124 104 Start subtracting at the ones Let’s learn! 138 - 24 = 114 hundreds
it together!
Try
2.
Remind students that in order to subtract multi-digit numbers, the hundreds, tens and ones place value must line up. Have students point to the ones place value. Then, have students point to the tens place value. Explain to students that a blank space in the tens and hundreds column means zero. erence.

Subtract. Write the di erence.

Rewrite the problem. Subtract. Write the di erence. Write the missing digit for each subtraction problem.

Bonus!

Fix the subtraction problem. Draw to explain. 149 - 19 = 13

©
— 59 43 Lighthouse Math | Level A Chapter 8 Exercise 6 177 — 152 31 — 39 2 12 — 94 50 — 105 2 — 45 0 25 — — 178 50 — 195 — 91 2 70 59 - 43 = 105 - 2 = 195 - 43 = 1. 5. 8. 2. 6. 9. 3. 4.
Lighthouse Curriculum. Copying strictly prohibited.
7.

1.

184 − 31 153

Teacher Notes

Name © Lighthouse Curriculum. Copying strictly prohibited. Let’s learn! 178 Level A Chapter 8 Lesson 1 | Lighthouse Math Try it together! 178 Level A Chapter 8 Lesson 7 | Lighthouse Math
Explain that just like with addition, using the vertical algorithm can make subtraction easier. Show students that like with addition, when subtracting using the vertical algorithm, we always start by subtracting the ones. If possible, help students count from 1-200 by tens and ones using actual ten rods and ones Help students use their fingers and other objects to subtract each place value. Watch for students who need to count out loud in order to count accurately. Encourage students to use an index card or sticky note to cover up the columns to help them focus on one place value column at a time. Vertical Subtraction with Di erences Less than 200
132 − 11 188 − 15 154 − 31 131 −
85 − 4 166 − 43 28 − 7 44 −22 178 − 56
2. 3. Write how many are left over.
21
Lighthouse Math | Level A Chapter 8 Exercise 1 179 7
© Lighthouse Curriculum. Copying strictly prohibited.
1. 2. 3.
4.
Write how many are left over. 177 − 55 143 − 42 114 − 2 95 −31 62 −51 73 −11 84 −22 198 − 76 166 − 46 131 − 11 175 − 64 189 − 64 154 − 33 128 − 27 148 − 27
5.

Story Problems Using Addition and Subtraction

Abraham had 15 . Then he gave 4 to his brother. How many does Abraham have left over?

Isaac had 26 . Then his dad handed him 31

more . How many does Isaac have now?

Ezekiel had 22 . Then his friend gave him 7 more . How many does Ezekiel have in all?

Jill picked 35

She gave her sister 13 . How many does Jill have left?

Teacher Notes

Introduce story problems as puzzles that students get to figure out. Read problems to students. Help students picture what is happening in the story, and then retell it in order to figure out which operation will help them solve. Act out stories using tens and ones to represent the amounts in the story problems. Watch for students who get stuck with which operation will help them solve. Reread the story with them and help them look for keywords such as in all, take away, more and what is left.

Name © Lighthouse Curriculum. Copying strictly prohibited.
180 Level A Chapter 8 Lesson 1 | Lighthouse Math
Try it together! Let’s learn!
15
- 4 11 1. 2. 3.
Ones Tens Hundreds Ones Tens Hundreds Ones Tens Hundreds Thousands = Ones Tens Hundreds Thousands Ones Tens Hundreds Thousands Ones Tens Hundreds Thousands Ones Tens Hundreds Thousands Ones Tens Hundreds Thousands 15 180 Level A Chapter 8 Lesson 8 | Lighthouse Math
11
Solve the story problem. Check with tens and ones.

Solve the story problem. Check with tens and ones.

Dillon had 19 . Then his dog ate 3 of the How many does Dillon have left over?

Bobby bought 46

Then he gave 6 to his neighbor. How many does Bobby have now?

Cal had 35 . Then his friend ate 12 of the . How many does Cal have left?

Garrison had 27

Then his brother took 15 of the . Now how many does Garrison have?

© Lighthouse Curriculum. Copying strictly prohibited. Lighthouse Math | Level A Chapter 8 Exercise 1 181
Bonus!
19 - 3 16 Teacher notes Read story problems to students as needed.
Write and solve your own story problem.
Ones Tens Hundreds Thousands Ones Tens Hundreds Thousands Ones Tens Hundreds Thousands Ones Tens Hundreds Thousands Ones Tens Hundreds Thousands Ones Tens Hundreds Thousands Ones Tens Hundreds Ones Tens Hundreds Thousands Ones Tens Hundreds Thousands Ones Tens Hundreds Thousands Ones Tens Hundreds Thousands Ones Tens Hundreds Thousands Ones Tens Hundreds Thousands Ones Tens Hundreds Thousands Ones Tens Hundreds Thousands = Ones Tens Hundreds Thousands Ones Tens Hundreds Thousands 8
1. 2. 3. 4.
07 :00
182
Chapter 9

In Chapter 9, we will learn to tell time to the hour and half hour, understand ordinal numbers, and answer questions about dates on a calendar.

• Understand the di erence between a digital and analog clock

Use the minute hand to determine the time to the hour and half hour

Use the hour hand to determine the time to the hour and half hour

Write the time to the hour and half hour given an analog clock

• Draw the time to the hour or half hour on an analog clock

Solve story problems regarding elapsed time

Answer questions about a calendar

Locate specific days or dates on a calendar

• Learn ordinal numbers

Vocabulary Words

hour hand minute hand o’clock analog digital calendar date month ordinal number 1st 2nd 3rd 183 1 11 12 6 2 10 3 9 4 8 5 7 1200

Circle 2 10 3 9 4 8 5 7 1 11 12 6

Circle the correct 1 11 12 6

The short hand shows us the hour! : 100 1 o'clock

1. 2 10 3 9 4 8 5 7 1 11 12 6

1 11 12 6

1 11 12 6

2 10 3 9 4 8 5 7

2 10 3 9 4 8 5 7 1 11 12 6

5:00 3:00 9:006:008:00

Teacher Notes

2 10 3 9 4 8 5 7

2 10 3 9 4 8 5 7 1 11 12 6

10 o’clock 3 o’clock 4 o’clock 7:006:0012:00

2 10 3 9 4 8 5 7

strictly prohibited. Name 184 Level A Chapter 9 Lesson 1 | Lighthouse Math Telling Time to the Hour
Let’s learn! © Lighthouse Curriculum. Copying
time.
the hour hand.
Remind students that when the minute hand, or the long hand, is on the 12, we know what hour it is by reading the hour hand, or the short hand. The hour hand points directly to the hour. Have students practice saying the hour out loud. For example, when the minute hand is on 12 and the hour hand is on 4, we say 4 o’clock. Try it together!
© Lighthouse
strictly prohibited. Lighthouse Math | Level A Chapter 9 Exercise 1 185 Draw a line to the matching time. Draw the hour hand. Write the time. 1. 2. 3. 1 11 12 6 2 10 3 9 4 8 5 7 1 11 12 6 2 10 3 9 4 8 5 7 1 11 12 6 2 10 3 9 4 8 5 7 1 11 12 6 2 10 3 9 4 8 5 7 1 11 12 6 2 10 3 9 4 8 5 7 1 11 12 6 2 10 3 9 4 8 5 7 1 11 12 6 2 10 3 9 4 8 5 7 1 11 12 6 2 10 3 9 4 8 5 7 1 11 12 6 2 10 3 9 4 8 5 7 1 11 12 6 2 10 3 9 4 8 5 7 1 11 12 6 2 10 3 9 4 8 5 7 1 11 12 6 2 10 3 9 4 8 5 7 o’clock o’clock 7 o’clock 1 o’clock 4:0010:00 11120308 00000000 : : 5 5 0000 o'clock : :
Curriculum. Copying
Let’s learn! © Lighthouse Curriculum. Copying strictly prohibited. Name Try it together! 186 Level A Chapter 9 Lesson 2 | Lighthouse Math Telling Time to the Half Hour
Notes The longer hand, the minute hand, points to the 6. Six is halfway around the clock and equals 30 minutes. We read the time as 3:30 (three thirty). We can also say half-past three. Notice the short hand, the hour hand, is in the middle of the 3 and 4. Color in the hour section. Circle the correct time. 1 11 12 6 2 10 3 9 4 8 5 7 3:30 4:30 The hour hand is between 3 and 4! 1 11 12 6 2 10 3 9 4 8 5 7 1 11 12 6 2 10 3 9 4 8 5 7 1 11 12 6 2 10 3 9 4 8 5 7 1 11 12 6 2 10 3 9 4 8 5 7 1 11 12 6 2 10 3 9 4 8 5 7 1 11 12 6 2 10 3 9 4 8 5 7 7 : 30 3 : 30 3 : 30 4 : 30 2 : 30 10 : 30 11 : 3012 : 30 1 : 30 1. 2.
Teacher

Color in the hour section.

12 o’clock red

6 o’clock green

8 o’clock blue

4 o’clock purple

Draw a line to the correct time.

Draw the clock hands and write the time.

©
Lighthouse Math | Level A Chapter 9 Exercise 2 187
Lighthouse Curriculum. Copying strictly prohibited.
1 11 12 6 2 10 3 9 4 8 5 7 1 11 12 6 2 10 3 9 4 8 5 7 1 11 12 6 2 10 3 9 4 8 5 7 1 11 12 6 2 10 3 9 4 8 5 7 1 11 12 6 2 10 3 9 4 8 5 7 1 11 12 6 2 10 3 9 4 8 5 7 1 11 12 6 2 10 3 9 4 8 5 7 1 11 12 6 2 10 3 9 4 8 5 7
2. 1.
30303030 : : : : 930 1 11 12 6 2 10 3 9 4 8 5 7
3.
12100603
Let’s learn! © Lighthouse Curriculum. Copying strictly prohibited. Name 188 Level A Chapter 9 Lesson 3 | Lighthouse Math Telling Time Using Hour and Minute Hands The hour is The minute is 4 00 12 1 2 3 4 5 6 7 8 9 10 11 04 : 00 Try it together! Teacher Notes Guide the students to read the time and say the words. Help with o’clock and thirty. Write the time. 1 11 12 6 2 10 3 9 4 8 5 7 1 11 12 6 2 10 3 9 4 8 5 7 1 11 12 6 2 10 3 9 4 8 5 7 1 11 12 6 2 10 3 9 4 8 5 7 1 11 12 6 2 10 3 9 4 8 5 7 1 11 12 6 2 10 3 9 4 8 5 7 1 11 12 6 2 10 3 9 4 8 5 7 1 11 12 6 2 10 3 9 4 8 5 7 : : : : : 1. 2.

Draw the hands to show the time.

© Lighthouse
Lighthouse Math | Level A Chapter 9 Exercise 1 189
Curriculum. Copying strictly prohibited.
Match
clocks. 6 : 30 3 : 00 Hour: 6 Minute: 30 Hour: 3 Minute: 00 1. 2. 3 1 11 12 6 2 10 3 9 4 8 5 7 1 11 12 6 2 10 3 9 4 8 5 7 07 : 00 02 : 00 05 : 30 11 : 00 12 : 30
the

My minute hand is pointing to the 6. My hour hand is pointing between the 5 and 6. Draw the time. What time is it?

Try it together!

My hour hand is pointing to the 8. My minute hand is pointing to the 12. Draw the time. What time is it?

My minute hand is pointing to the 6. My hour hand is pointing between the 12 and 1. Draw the time. What time is it?

I can solve time story problems.

Sarah takes a nap at 4 o’clock. She sleeps for 1 hour. What time does she wake up? Draw and write the time.

Teacher Notes

Read the entire problem together. Then read each line and have students move their clock hands to the position the problem states. When doing problems with a specific start time, have students first make the time, then move the minute hand either 30 minutes/half way around (from 12 to 6, or 6 to 12) or one full rotation (12 to 12, or 6 to 6). Have them move the hour hand either to the middle of the two corresponding hours, or to the next hour.

© Lighthouse Curriculum. Copying strictly prohibited. Name
Let’s learn!
190 Level A Chapter 9 Lesson 4 | Lighthouse Math 1 11 12 6 2 10 3 9 4 8 5 7 1 11 12 6 2 10 3 9 4 8 5 7 1 11 12 6 2 10 3 9 4 8 5 7 1 11 12 6 2 10 3 9 4 8 5 7
: : :
:
Story Problems with Time
Solve the story problems. Use your clock to help you. 1. 2. 3. 530

Solve the story problems. Use your clock to help you. 1.

My minute hand is pointing to the 6 My hour hand is pointing between the 9 and 10 Draw the time. What time is it?

My hour hand is pointing to the 6. My minute hand is pointing the 12. Draw the time. What time is it?

Jonah leaves school at 3:00. It takes him 30 minutes to get home. What time will Jonah get home? Draw and write the time.

It is 7:30. Rebecca reads for 30 minutes. What time does she stop reading? Draw and write the time.

Joshua gets on the train at 9:30. He rides the train for 2 hours. What time does he get o the train? Draw and write the time.

Miriam goes to the party at 4:00. She stays for 3 hours and 30minutes. What time does she leave? Draw and write the time.

©
Lighthouse Math | Level A Chapter 9 Exercise 4 191 1 11 12 6 2 10 3 9 4 8 5 7 1 11 12 6 2 10 3 9 4 8 5 7 1 11 12 6 2 10 3 9 4 8 5 7 1 11 12 6 2 10 3 9 4 8 5 7 1 11 12 6 2 10 3 9 4 8 5 7 1 11 12 6 2 10 3 9 4 8 5 7
Lighthouse Curriculum. Copying strictly prohibited.
: : : : : :
4. 2. 5. 3. 6.

Introducing the Calendar 1.

Sun Mon Tue Wed Thu Fri Sat May 2021 1 8765432 1514131211109 22212019181716 29282726252423 3130 25 marks Tuesday, May 25, 2021 This month has 31 days. Use the calendar.

What month is this?

August Try it together!

How many days are in this month?

How many days are in a week?

On what day is August 15?

31

Teacher Notes

Point to the class calendar. Model saying the current date, for example: “Today is Tuesday, May 25th 2021.” Explain that a calendar tells time by giving the month, day, date and year. Say or sing the names of the 12 months as well as the days of the week. Calendars help us know when it is a day for school, a day for a dental appointment or even a day for staying home.

© Lighthouse Curriculum. Copying strictly prohibited. Name 192 Level A Chapter 9 Lesson 5 | Lighthouse Math
Let’s learn!
How many Fridays are there? Sun Mon Tue Wed Thu Fri Sat 3 2 1 10 9 8 7 6 5 4 17 16 15 14 13 12 11 24 19 18 26 25 31
This is a calendar!

Draw

Draw a circle around the name of the month.

Draw a triangle on the 15th.

Draw a square on the 21st.

Draw an on the first Sunday.

©
Lighthouse Math | Level A Chapter 9 Exercise 5 193 Sun Mon Tue Wed Thu Fri Sat January 2021 1 876543 2 151413121110 9 222120191817 16 292827262524 23 31 30
Lighthouse Curriculum. Copying strictly prohibited.
a shape.
1.
Let’s learn! © Lighthouse Curriculum. Copying strictly prohibited. Name 194 Level A Chapter 9 Lesson 6 | Lighthouse Math Sun Mon Tue Wed Thu Fri Sat March 6 5 4 1 3 13 11 10 9 8 20 19 18 17 16 15 14 26 24 23 22 21 28 30 31 Sun Mon Tue Wed Thu Fri Sat August 7654321 141312111098 21201918171615 28272625242322 3029
will Joe Using a Calendar in Everyday Settings
31 Write the day and date Try it together!
Read through the calendar together. Find the music note. Count to figure out the data. Ask questions such as: What day is this? Did anything else happen in this week? Sunday, August 22 Tuesday, August 17
When
1.
Teacher Notes

Number the days from 1-30.

What is the first day of this month?

How many days are in 1 week?

How many days are in November?

On what day is November 19th?

What will Josh do on November 11th?

If today is the 2nd, what will Josh do tomorrow?

If today is the 23rd, what did Josh do yesterday?

Which day comes after the 7th?

Which day comes before the 17th?

If yesterday was the 7th, what is tomorrow?

If tomorrow is the 25th, what is today?

Use the calendar above.

Color the weekdays orange.

Color the weekends blue.

Teacher Notes Explain

Lighthouse Math | Level A Chapter 9 Exercise 6 195
Sun Mon Tue Wed Thu Fri Sat November
© Lighthouse Curriculum. Copying strictly prohibited.
Bonus!
that the weekends include Saturday and Sunday and the weekdays include Monday - Friday. Direct students to color
1.
in the March and November full calendars.
Monday

Ordinal

Numbers

1. 2. 3.

it together! Draw.

Teacher Notes

Name 196 Level A Chapter 9 Lesson 7 | Lighthouse Math
Let’s learn! © Lighthouse Curriculum. Copying strictly prohibited.
Chart 1st first 2nd second 3rd third 4th fourth 5th fifth 6th sixth 7th seventh 8th eighth 9th ninth 10th tenth 11th eleventh 12th twelfth 13th thirteenth 14th fourteenth 15th fifteenth
In the first box, draw a sun. In the second box, draw a face. In the third box, draw a ball. Ask students, “When are some occasions when we get in line? Taking class pictures, going to music, waiting for a ride at a park, batting order, racers in a race. Then, point to the ordinal numbers chart from 1-19. Point and have students repeat. Ask if they notice any pattern with the words. Possible answers include: ‘th’ endings and ‘teenth’ endings. th sixteenth
16
17thseventeenth 18theighteenth 19thnineteenth
Try
Ordinal Numbers to 19
the tenth, the twelfth, the fourteenth 4.
Draw in order. First: draw a , second: draw a , third: draw a

on the first customer. on the fifth customer.

on the eighteenth customer. on the twelfth customer. on the tenth customer.

on the third customer.

2. 3. 10

12

11

Eleventh Nineteenth 1 2 3 4 5 6 8

13 14 15 16 17 18 19 7 2nd

Fifth 9

Lighthouse Math | Level A Chapter 9 Exercise 7 197
© Lighthouse Curriculum. Copying strictly prohibited.
Draw. Fill in.
Fourteenth
Second Seventh 1.

Let’s review!

What month is it?

What time is it?

Draw the hour and minute hands. Write the time.

Solve.

My minute hand is on the 12. My hour hand is on the 4. What time is it? Draw the time.

Teacher Notes

What time will it be in 30 minutes?

Have students use their own clocks to help them answer questions about time. Remind them that the hour hand is the short hand and the minute hand is the long hand. When the minute hand is on the 12, the hour hand points directly to the hour. When the minute hand is on the 6, the hour hand is in the middle of two numbers. Check the hour section to know which hour it is.

© Lighthouse Curriculum. Copying strictly prohibited. Name Sun Mon Tue Wed Thu Fri Sat 3 2 1 10 9 8 7 6 5 4 17 16 15 14 13 12 11 21 19 18 31 Try it together! Let’s learn! 198 Level A Chapter 9 Lesson 8 | Lighthouse Math Review
1 11 12 6 2 10 3 9 4 8 5 7 1 11 12 6 2 10 3 9 4 8 5 7 1 11 12 6 2 10 3 9 4 8 5 7 1 11 12 6 2 10 3 9 4 8 5 7 1 11 12 6 2 10 3 9 4 8 5 7 1 11 12 6 2 10 3 9 4 8 5 7 : 930
August
1.
04
00
2. : 0310
0030

Use

What month is it?

How many days are in this month?

What day of the week is the 4th?

When does Joe go to the dentist?

What will Joe do on Friday, June 5th?

What day is June 14?

If today is the 17th, what day is tomorrow?

If yesterday was the 28th, what day is today?

Which days does Joe have music class?

How many Mondays are there?

When is Joe’s birthday?

Color all the weekends blue.

Draw an on the first Wednesday.

Draw a on the fourth Sunday.

Sun Mon Tue Wed Thu Fri Sat June 5 123 4 12 1098 6 1918 161514 13 252423 21 20 302928 27 Lighthouse Math | Level A Chapter 9 Exercise 8 199
in the missing dates on the calendar. 1.
© Lighthouse Curriculum. Copying strictly prohibited.
Fill
the calendar.

Chapter 10

200

In

• Measure length with non standard objects

• Order lengths from least to greatest

Learn about the ruler and how to use it

Compare lengths and weights

Measure weight

• Use and read a thermometer

Compare lengths using non standard tools

Rulers help us find the length of objects

Thermometers measure temperature

• Scales show us how heavy an object is

Vocabulary Words

Chapter 10, we will learn about length, measurement, weight and temperature.
length ruler inch least greatest pound in. lbs temperature thermometer farenheit degrees 201

We can measure the same object with di erent units!

4

Measure the length of the pencil.

1. 2. 3.

Teacher Notes

For extra practice, students can use the objects you give them (e.g. paper clips, pennies, blocks) to compare the lengths of the pencils in the worksheet. For example, #1 measure the pencil with pennies, #2 with blocks and #3 with an object the student decides to measure with. Compare and check answers with the class. Remind students to line up the objects along the length, close together and in the same orientation, making sure to reach both ends of the pencil.

Let’s learn! © Lighthouse Curriculum. Copying strictly prohibited. Name Try it together! 202 Level A Chapter 10 Lesson 1 | Lighthouse Math
Measuring Length with Nonstandard Tools

4.

Measure the length.

Measure the lengths of the objects below using paper clips and pennies .

Teacher Notes

For problem 4, guide students to measure actual pencils, books and boxes in the classroom.

© Lighthouse Curriculum. Copying strictly prohibited.
Lighthouse Math | Level A Chapter 10 Exercise 1 203
1. 2. 3.
Object Measurement Measurement

Let’s learn!

This is the biggest boat. It is 5 blocks long.

Try it together!

How long is the block? Circle the longest block.

How long is the pan? Circle the shortest pan.

Teacher Notes

Be sure to identify the di erence between circling the biggest object vs. the smallest object. Students may confuse the measurement by only identifying the “blue” puzzle piece. Be sure to identify the measurement of each object by saying, “how many puzzle pieces is the block?” Or “how many train cars is the pan?” Also, be sure to note that the “smallest” object is the least and the “biggest” object is the greatest. This will help students with their independent practice.

© Lighthouse Curriculum. Copying strictly prohibited. Name 204 Level A Chapter 10 Lesson 2 | Lighthouse Math Ordering Lengths from Least to Greatest
1. 2.

How big is the object? Order the object from least to greatest. Draw a line to match.

Lighthouse Math | Level A Chapter 10 Exercise 2 205
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Least Greatest
1. 2.
Least Greatest Least Greatest
3.

This ruler measures with inches!

How long is it?

This pencil is 5 inches long.

10 inches

How many inches?

5 inches

in = inches

Teacher Notes

Get a ruler for each student (or pairs). Teach the vocabulary length, ruler, inches. Cut out a string for each student, or any small object. Teach them how to use a ruler. Make sure to line up one end of the object to the end of the ruler, matching it with 0. Make sure to extend the string and read the number the other end lines up on. Practice measuring together.

© Lighthouse Curriculum. Copying strictly prohibited. Name Let’s
206 Level A Chapter 10 Lesson 3 | Lighthouse Math Try it together!
learn!
Introducing the Ruler
1. 2. 4. 3. 5. 6. 8in

How many inches? 1. 2. 3.

How much longer?

4in Bonus!

Teacher Notes

Which line is longer? The blue line is longer, but how much longer? Find the end of the red line. Count up to the end of the blue line. It is 4 inches longer. We can compare lengths as long as they are lined up at zero. Are these lined up?

Guide students to see where the lines start and end.

Practice in class to show when objects are not lined up to emphasize precision and accuracy when measuring.

Lighthouse Math | Level A Chapter 10 Exercise 3 207
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We can use a ruler to compare lengths of objects!

Jake’s blue bat is 10 in. long and his red bat is 7 in. long. How much longer is his blue bat? 3in

How much longer? Color in the correct answer.

9 in

1 in 4 in

Teacher Notes

2 in 6 in 3 in

1 in 3 in 7 in

Which object is longer? The blue bat is longer but by how much? Find the end of the red bat. Count up to the end of the blue bat. It is 3 in. longer. We can compare lengths as long as they are lined up at zero. Are these lined up? Guide students to see where the bats start and end.

Let’s
strictly prohibited. Name Try it together! 208 Level A Chapter 10 Lesson 4 | Lighthouse Math Using a Ruler to Compare Lengths
learn! © Lighthouse Curriculum. Copying
1. 2.
3.

How much longer? Color in the correct answer.

©
Lighthouse Math | Level A Chapter 10 Exercise 4 209 2 in 1 in 2 in 4 in 3 in 2 in 9 in 5 in 6 in 5 in 1 in 0 in 3 in 4 in 8 in 3 in 2 in 1 in
Lighthouse Curriculum. Copying strictly prohibited.
1. 2. 3. 4. 5. 6.

We can compare the weight of di erent objects using a balance scale!

Which is heavier? Circle the correct answer.

20 lbs 2 lbs

20 lbs is heavier than 2 lbs

lbs = pounds

Which is heavier? Circle the correct answer.

Teacher Notes

When comparing weight, you can use similar strategies as when students were comparing length. The bigger the number, the heavier the object, and the smaller the number the lighter the object. Be sure to explain “lbs” = pounds.

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it
210 Level A Chapter 10 Lesson 5 | Lighthouse Math
Let’s learn!
Try
together!
Comparing Weight of Objects
2. 4. 1 lbs 6 lbs 2 lbs 3 lbs 5 lbs 5 lbs 10 lbs 7 lbs
1. 3.

Which is heavier? Circle the correct answer.

Which is lighter? Circle the correct answer.

Order the objects from lightest to heaviest.

Lighthouse Math | Level A Chapter 10 Exercise 5 211
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students look back at the pictures on the page and find the weight of each object. Use these weights to put the
Teacher Notes Help
objects in order .
5. 2. 4. 6. 7. 8 lbs 2 lbs 1 lb 3 lbs 8 lbs 13 lbs 20 lbs 125 lbs 7 lbs 125 lbs 10 lbs 20 lbs 6 lbs 1 lb 3 lbs 70 lbs 13 lbs 27 lbs
1. 3.

These are heavier than 1 pound.

Try it together!

These are lighter than 1 pound.

Circle the objects that are heavier than 1 pound.

Teacher Notes

If you can, have a variety of objects so students can actually hold the di erent items to explore the weight. If you have a football or something equivalent to 1 pound, have the students hold that in one hand and compare other objects in the other hand to explore the concept of heavier and lighter.

Let’s learn!
prohibited. Name 212 Level A Chapter 10 Lesson 6 | Lighthouse Math
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1. 3. 2.
Introducing and Understanding Units of Weight H L 1lb 1lb
4.

Match the scales! Match each object with the correct scale.

1 lb

2 lbs

5 lbs

6 lbs

15 lbs

20 lbs

25 lbs

135 lbs

6 lbs

20 lbs

25 lbs

5 lbs

1 lb

15 lbs

135 lbs

2lbs

Lighthouse Math | Level A Chapter 10 Exercise 2 213 6
© Lighthouse Curriculum. Copying strictly prohibited.
1.

Write the temperature.

Write the temperature. Circle the thermometers that show a temperature lower than 50°F.

Teacher Notes

Use a real thermometer to model measuring temperature. You can get a bowl of water, and use the palm of your hands, blanket or di erent items to show how to measure the temperature of di erent things. Explain the numbers on the side tell you the temperature. The thermometer fills up to the temperature the room/object is. It tells you how hot or cold the room/object is. The liquid goes up and down depending on the temperature. If you have a thermometer in your classroom, you can have students observe that as well.

Let’s learn!
Name 214 Level A Chapter 10 Lesson 2 | Lighthouse Math Try it
Level A Chapter 10 Lesson 32ºF cold 212ºF hot Introducing and Understanding Temperature Let’s read the temperature 48°F 180°F ˚F
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together!
1. 2.
Lighthouse Math | Level A Chapter 10 Exercise 7 215 Write the temperature. Circle the one that shows the colder temperature.
© Lighthouse Curriculum. Copying strictly prohibited.
1.
3. 5.
2. 4.
6. 40˚F80°F

Josh had a basket of that weighed 5 lbs. Sam’s weighed 2 lbs. How much did they weigh all together?

5

= 7 lbs

lbs +

lbs

strictly prohibited. Name 216 Level A Chapter 10 Lesson 8 | Lighthouse Math
Length, Weight and Temperature
Let’s learn! © Lighthouse Curriculum. Copying
Try it together!
+ 2
4 in + 4 in = 8 in + 2 in = 10 in + 8 in = 5 lbs + 2 lbs = 6
2
= 7
+ = 5 lbs 2 lbs 10 in 8 in 18in
6
Cory’s blue bat is 10 in long. His red bat is 8 in long. How long are they all together? 6
lbs
lbs + 7 lbs =
1. 2. Write the total.
lbs

Teacher Notes

Take your red crayon. Read the temperature and color the thermometer to match that temperature.

Lighthouse Math | Level A Chapter 10 Exercise 8 217
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1. 2. 3. 20˚F 80˚F 100˚F 30˚F 50˚F 10˚F 70˚F 60˚F Read and color. 40˚F

Chapter 11

218

•Classify shapes as open or closed

•Label two-dimensional shapes

•Count and write the number of vertices for a given two-dimensional shape

•Count and write the number of sides for a given two-dimensional shape

•Determine if a two-dimensional shape attribute is defining or non-defining

•Compose and decompose two-dimensional shapes

•Divide shapes into two equal parts or halves

•Divide shapes into four equal parts or fourths

•Label three-dimensional shapes

•Count and write the number of vertices for a given three-dimensional shape

•Count and write the number of edges for a given three-dimensional shape

•Count and write the number of faces for a given three-dimensional shape

•Compose and decompose three-dimensional shapes Vocabulary

In Chapter 11, we will learn to recognize, compose and decompose two-dimensional and three-dimensional shapes and divide shapes into equal parts or fractions.
Words triangle square rectangle trapezoid closed polygon open shape sides vertex defining non-defining compose decompose equal fourth halves whole faces edges 3d shape 2d shape rectangular prism cube cylinder cone 219

2D Shapes: Names, Real World Examples, and Open vs Closed

A polygon is a closed shape with 3 or more sides!

Teacher Notes

Teacher can have students look for examples of these polygons in the classroom. Encourage students to identify the polygons by their characteristics. Model counting the sides of each polygon by touching each side or by tracing each side with a pencil.

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220 Level A Chapter 11 Lesson 1 | Lighthouse Math
it
Let’s learn!
Try
together!
Closed
Circle the name of the polygon. Open shapes trianglesquarerectangle triangle rectangle square trapezoid triangle rectangle closed polygon open shape square trapezoid closed polygon open shape trapezoid
Polygons
1. 4.
2. 5.
3. 6.

Draw a line to match the polygon name to the polygon.

Draw a line to match the polygon name to the real life polygon.

Lighthouse Math | Level A Chapter 11 Exercise 1 221
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triangleopen
squarerectangletrapezoidclosed
open
triangletrapezoidsquarerectangle
shape
polygon
shape closed polygon
1. 2.

Corners are also called vertices.

Vertices and Sides with Defining and Non-defining Attributes on 2D Shapes

Defining Attributes

•Number of sides

•Number of vertices

•Closed Polygon

•2D (two-dimensional)

Vertex

Square Triangle

Vertices

Non-defining Attributes

•Color

•Size

•Pattern

•Direction

Count the number of vertices. Write the number.

Number of vertices

Number of vertices

Count the number of sides. Write the number.

Number of vertices

Number of sides

Teacher Notes

Number of sides

Number of sides

As students count the number or vertices and sides, have them count out loud. Use their finger and physically touch each vertex while counting. Remind students that a vertex is where 2 sides meet. When all sides meet in a 2D shape, this is a closed polygon. When counting the sides of a square, have students make a slash mark on each side of the square to show that all 4 sides are equal in a square.

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Side 222 Level A Chapter 11 Lesson 2 | Lighthouse Math
Try it together! Let’s learn!
Side
1. 4.
2. 5. 3. 6.

Draw to solve the riddle.

I am small and blue. I have 4 sides that are the same length. I have 4 vertices that look like corners.

I see 2 shapes. One is big and yellow. It has 3 sides and 3 vertices. The other shape is green and small. It also has 3 sides and 3 vertices.

There are 3 red shapes. All have 4 sides and 4 vertices, but they look di erent. How are they di erent?

Lighthouse Math | Level A Chapter 11 Exercise 2 223
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Bonus!
Circle the Non-defining
attribute of each shape.
1. 3. 5. 6. 2.
pattern size directionsize colordirection pattern size
4.

I can make a new shape!

Try

Teacher Notes

Use shape names as much as possible and have students repeat the names of the shapes. Use the terms compose and decompose when talking about making shapes and taking them apart. Allow students to use their pattern blocks to make the shapes. In Let’s learn, have them take two orange squares and put them together. We composed a rectangle. Then have them take a square and a triangle. Can they put them together to make the purple shape? Now take the shapes apart. We decomposed the shape.

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224 Level A Chapter 11 Lesson 3 | Lighthouse Math
Let’s learn!
Composing and Decomposing 2D Shapes
it together! Circle the new shape.
Circle the shapes used. 1. 2.

2.

Compose your own! Use 3 or more pattern blocks.

Shapes Used New Shape

Lighthouse Math | Level A Chapter 11 Exercise 3 225
© Lighthouse Curriculum. Copying strictly prohibited.
a line.
Draw
1.

Try it together!

Circle the shapes with 2 equal parts.

Let’s share equally!

Color in half of each shape.

Divide the shape in 2 equal parts. Color in one half.

Teacher Notes

Practice pronouncing the word HALF. Write the word on the board. Spell the word and have students trace the word in their book. Point out that the L is silent. Say the plural of HALF is HALVES. Have students repeat these words and use them when talking about the problems. Make sure students are dividing shapes into equal parts, not just 2 parts. Show students that halves are equal. Explain that there are multiple answers for some shapes to be cut in half. They can be cut vertically, horizontally, or diagonally.

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226 Level A Chapter 11 Lesson 4 | Lighthouse Math Halves
half 1.
2. 3.

Circle the shapes with 2 equal parts.

Color in half of each shape.

Divide the shape in 2 equal parts. Color in one half.

Draw 2 objects you can share equally with a friend. Draw a line to show half of each object.

Lighthouse Math | Level A Chapter 11 Exercise 4 227
© Lighthouse Curriculum. Copying strictly prohibited. 1. 2. 3. 4.

Let’s learn!

I can make four equal parts! fourth

Try it together!

Circle the shapes with 4 equal parts.

Color 1 fourth of each shape.

Divide the shape in 4 equal parts. Color 1 fourth.

Teacher Notes

Practice pronouncing the word FOURTH. Write the word on the board. Underline the word FOUR. Ask: How many parts will we divide the shape into? [four] Spell the word and have students trace the word in their book. Say the plural of FOURTH is FOURTHS. Have students repeat these words and use them when talking about the problems. Make sure students are dividing shapes into four equal parts, not just four parts. Show students that each part is equal. Explain that there are multiple answers for some shapes to be cut in four parts, just like in halves.

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228 Level A Chapter 11 Lesson 5 | Lighthouse Math Fourths
1. 2. 3.

Draw a line. How many fourths are colored in?

1 fourth

2 fourths

3 fourths

4 fourths

Color the correct number of fourths.

Divide each shape into 4 equal parts. Color 2 fourths.

Lighthouse Math | Level A Chapter 11 Exercise 5 229
© Lighthouse Curriculum. Copying strictly prohibited.
1. 2. 3.
1 fourth
2 fourths
3 fourths
4 fourths

Let’s learn!

3D Shapes: Names and Real World Examples

Do 3D shapes have special names?

Try it together!

Circle the name of the shape.

Teacher Notes

Point to each shape and say the names together as a class. Hold up a matching shape so the students can see the real world model of the shape as they touch the image in their book. Describe what they notice about the object. What shapes do you see on the sides? How many edges do you see? Are there any points? How many points do you see? When completing numbers 1-6 as a class, remind students to point to each 3D shape and practice saying shape names.

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230 Level A Chapter 11 Lesson 6 | Lighthouse Math
Cube Cube Cube Cube Cube Rectangular Prism Rectangular Prism Cylinder Cylinder Cylinder Cone Cone Cone Cone Cone Rectangular Prism
1. 4. 2. 5. 3. 6.
Lighthouse Math | Level A Chapter 11 Exercise 6 231 Cube Cube Cube Rectangular Prism Cylinder Cylinder Cone Cone
real world object.
correct real world
© Lighthouse Curriculum. Copying strictly prohibited.
Circle the name that matches the
Match the 3D shape with the
object. 1.
2.

Faces, Vertices and Edges with Defining and Non-defining Attributes on 3D Shapes

How many faces does a cube have?

Faces are the shape’s flat surfaces.

Let’s learn! Try it together!

Edges are line segments where two faces meet.

Vertices are the places where edges meet.

Teacher Notes

Locate real world examples of the above mentioned 3D shapes so that the teacher can show the faces of each object. Have students trace the face with their fingers to reinforce the face shape. Discuss how the pictures provide an image of a 3D shape, but there are “hidden” edges, vertices that we can’t see. If we can hold the shape, we can rotate it and see the other sides. Show students how they can imagine or draw in the hidden edges and vertices.

Name © Lighthouse Curriculum. Copying strictly prohibited.
232 Level A Chapter 11 Lesson 7 | Lighthouse Math
Circle the 2D shape that looks like the face of the 3D shape.
1. 2. 3. 4.

Count the number of vertices. Write the number.

Count the number of edges. Write the number.

Circle Defining or Non-defining Attribute.

The cylinder is blue.

The cube is tiny.The cone has a vertex.

DefiningNon-definingDefiningNon-definingDefiningNon-defining

Circle which 3D shape does NOT have a hidden vertex when drawn on paper.

Lighthouse Math | Level A Chapter 11 Exercise 7 233
© Lighthouse Curriculum. Copying strictly prohibited.
1. 4. 7. 10. 2. 5. 8. 3. 6. 9.

I can build new 3D shapes.

Compose a crayon

Try it together!

Decompose a pencil

How many 3D shapes do you see? Write the number.

Color the shapes used to make the composite shape.

Circle real life examples of composite 3D shapes.

Teacher Notes

In the Let’s learn section, guide students to look at how the crayon is made up of two 3D shapes and how the pencil is broken up into three 3D shapes: a cone and two cylinders. Ask students in #4 what decomposed shapes make up the composite shape. When discussing the ice cream cone, remind students that sometimes not all of the decomposed shapes can be seen in full in the composite shape. The ice cream itself is in the shape of a sphere but part of it is hiding inside the cone. The ice cream is part of the whole ice cream cone.

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234 Level A Chapter 11 Lesson 8 | Lighthouse Math
and Decomposing 3D Shapes crayon pencil pencil
Composing
1. 2. 3. 4.

Match the 3D shapes with a new composite shape.

Decompose the shape. Circle its parts.

Solve the Riddle. Circle the composite shape.

My bottom shape has 6 faces. Each flat face is a square. I have no curved surfaces. My top shape has one curved surface with one circle face and one vertex. What do I look like?

Lighthouse Math | Level A Chapter 11 Exercise 8 235
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1.
2. 3. 4.

Chapter 12

236

• Learn how to read and count with tally marks

Make a tally chart and compare data

Use pictures to make a graph

• Understand how to use a key

• Interpret data within and across graphs

Present data in a bar graph

Tally marks help us count

• Use graphs to show and compare data

Vocabulary Words tally

In Chapter 12, we will learn how to make and use tally charts, picture graphs and bar graphs to compare data.
237
mark key graph chart bar graph symbols interpret or data

This is a tally mark.

A tally mark is used to help us count.

A tally chart is one way to organize data.

We use one tally mark for each thing we count. If we count 3 items we would show

We group our tally marks in groups of 5 like this

Try it together!

Show everyone’s favorite fruit in a tally chart. Cross out each fruit as you add a tally mark to the chart.

1.

Favorite Fruit

Banana Pineapple Strawberry

Teacher Notes

Tally Marks

Show students how to draw one tally mark, then show them 2 tally marks. Explain that you draw a vertical line, or tally mark, for every item you count. Encourage students to cross out the pictures as they count them and record their tally marks. Take time to show and explain how to group the tally marks to show 5.

strictly prohibited. Name 238 Level A Chapter 12 Lesson 1 | Lighthouse Math
Let’s learn! © Lighthouse Curriculum. Copying
Tally Chart

Use the pictures below to complete the tally chart.

Favorite Snacks

Tally Marks

Cupcake

Candy

Count the animals. Write the tally marks.

Class Animals

Dog

Pretzel Cat

Fish Snake

Tally Marks

Lighthouse Math | Level A Chapter 12 Exercise 1 239
© Lighthouse Curriculum. Copying strictly prohibited.
1. 2.

We can get information by looking at a tally chart.

One tally mark = 1.

Five tally marks = 5.

Try it together!

Let’s use a tally chart!

Look at the tally chart below. Write the answer.

Favorite SeasonTally Marks

Winter Spring Summer

Fall

1. 2. 3.

What season had the most votes?

What season had the least votes?

How many students voted for fall or spring ?

Teacher Notes

Teacher should read through each question and walk around while you’re discussing the tally chart to make sure students are putting their pencil on each tally mark while they count. Also, make sure when students write the number of tally marks, that they’ve written the correct number. Students may need to go back and recount the tally marks again. In question 3, when students are asked fall OR spring, it means students need to combine the two seasons. Students may need a reminder of that from the previous day’s lesson.

prohibited. Name
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240 Level A Chapter 12 Lesson 2 | Lighthouse Math
Interpreting Data from a Tally Chart

Look at the tally chart below. Circle the answer to each question.

Favorite Birthday TreatTally Marks

Cupcakes

Cookies

Cake

Ice Cream

Which treat has the most votes?

Which treat has the least votes?

How many kids voted for or ? 1512

How many more kids voted for than ?23

Look at the tally chart below. Write the answer. Slide

Best Playground Equipment Tally Marks

Swings

Seesaw

How many kids voted for the ?

Which piece of equipment got the most votes?

How many more kids like the than the ?

How many total kids voted for the best playground equipment?

Lighthouse Math | Level A Chapter 12 Exercise 2 241
© Lighthouse Curriculum. Copying strictly prohibited.
1. 5. 2. 6. 3. 7. 4. 8.

How We Get to School

Bus

This is a picture graph! A picture graph is another way to organize data.

25 20

Key = 5 children = 5 children

Try it together!

The key tells us what each symbol stands for.

What Kids Eat For Lunch

Car Bagel

Sandwich

Chicken

Complete the picture graph. 1.

Key = 1 child = 1 child = 1 child

How many total lunches were served?

Teacher Notes

Teacher needs to walk around and make sure students are crossing out each picture as they draw it in the picture graph. Teacher should also make sure students are drawing the pictures next to each other, in a row, not on top of each other in the picture graph.

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Let’s learn!
242 Level A Chapter 12 Lesson 3 | Lighthouse Math
Picture Graph

Complete the picture graph.

1.

2.

Favorite

Smiles

Suns

Hearts

Pictures Favorite Place to Go

Key = 1 child = 1 child = 1 child

Look at the tally chart. Make a picture graph using the data in the tally chart.

See animals at the farm

Play at the park

Walk in the woods

Favorite Place to Go

See animals at the farm

Play at the park

Walk in the woods

Key = 1 child = 1 child = 1 child

Teacher Notes

Tell students to choose a symbol or picture to represent each place. Complete the Key with your own symbols. Now it’s your turn to create a graph. Look at the tally chart. The chart tells us which places are students’ favorite. “See animals at the farm” is the first place. How many students like this? [6] Now go to the graph. Choose a symbol to represent this place. Draw that symbol 6 times. (pause to let students finish) Where else to we draw that symbol? [in the key]. Now finish the graph.

Lighthouse Math | Level A Chapter 12 Exercise 3 243
© Lighthouse Curriculum. Copying strictly prohibited.

We can get information from a picture graph!

Best Time of Day

Daytime

Nighttime

Key = 2 children = 2 children

This is a picture graph.

Try it together!

Remember that the key tells us what each symbol stands for.

Look at the picture graph below. Write the answer.

What We Drink with Breakfast

Milk

Water

Juice

Key = 1 child = 1 child = 1 child

1. 2. 3.

How many students drink with breakfast?

How many students drink or with breakfast?

How many more students drink than ?

Teacher Notes

Remind students to touch each object with their pencil when they count. Students may also need a reminder that when a question asks “milk or water” it means to add the pictures together. Depending on the reading level of your class, you may want to read the questions out loud together or have students read each question to the class.

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244 Level A Chapter 12 Lesson 4 | Lighthouse Math
Interpreting Data from a Picture Graph

Look at the picture graph below. Write the answer.

Favorite Vegetables

Key = 1 child = 1 child = 1 child

How many kids like or ?

How many more kids like than ?

Which vegetable do kids like the most?

Which vegetable do kids like the least?

Favorite Colors

Key = 1 child = 1 child = 1 child = 1 child

How many students like or ?

How many more students like than ?

How many kids voted for their favorite color?

Teacher Notes

Spend time explaining the “How many more ..” question in the favorite vegetable picture graph. This is a new type of question. When we’re asked to find how many more it means we need to find the di erence between the pictures. Discuss strategies like counting up to find the di erence as well.

Lighthouse Math | Level A Chapter 12 Exercise 4 245
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Broccoli Red Lettuce Blue
Peas Yellow Green
1. 1. 2. 2. 3. 4. 3.

Use the pictures to make a bar graph.

1. Favorite Special

ArtMusicReadingWalking Specials

Teacher Notes

Teacher should walk around and make sure students are crossing out the pictures as they color the squares in the bar graph. Some students might find it easier to fill in all the music notes because that one’s been started, on the bar graph before moving on to one of the other pictures. Be sure to explain that bar graphs can be horizontal or vertical. In Let’s learn, the numbers are on the bottom, so the graph is horizontal. In the Favorite Special graph, the numbers are on the side, so it is a vertical bar graph.

Let’s learn! © Lighthouse
Copying strictly prohibited. Name
it together! 246 Level A Chapter 12 Lesson 5 | Lighthouse Math Let’s make a bar graph! Making a Bar Graph Favorite Sea Animal Octopus 1 1 2 3 4 5 6 7 23456 Whale Seal
Curriculum.
Try
Kids Kids
Animals
Sea

Insects Times of Day

Use the pictures to make a bar graph.

Insects We Saw on Our Walk

Look at the tally chart. Make a bar graph with the data.

Favorite Time of Day

Afternoon

Night

Favorite Time of Day

Afternoon

Night

Number of Insects Kids

©
Lighthouse Math | Level A Chapter 12 Exercise 5 247
Lighthouse Curriculum. Copying strictly prohibited.
1 1 2 2 3 3 4 4 5 5 6 6789 Bee
Butterfly Morning
Ant
Ladybug
1. 2. Morning

Kids

Favorite Fruit

1. 2. 3. Kids

How many kids like ?

How many kids like or ?

Teacher Notes

Tell students to touch their pencil to each bar as they count. Students could also write the number of colored bars on top or next to the bars.

Let’s learn! © Lighthouse Curriculum. Copying strictly prohibited. Name Try it together! 248 Level A Chapter 12 Lesson 6 | Lighthouse Math Interpreting Data from a Bar Graph Favorite Zoo Animals Tiger 12345 Zebra Penguin Animals This is a bar graph. This is the scale of the bar graph. We can get information from a bar graph. Write the answer to each question.
How many more kids like than ? 1 2 3 4 5 6 7 Apple Strawberry Grapes Banana Fruits

Look at the bar graph. Circle the answer.

What type of weather did kids like the least?

How many more kids like than ?

How many kids like or ?

Look at the bar graph. Write the answer.

How many kids like or ?

How many kids like or ?

How many more kids like than ?

How many kids like , or ?

What kind of dessert is the most popular?

© Lighthouse
Copying strictly prohibited. Lighthouse Math | Level A Chapter 12 Exercise 6 249
of Weather Sunny 12345678910 Snowy Cloudy Weather
Curriculum.
Favorite Kind
1. 4. 2. 5. 3. 6.
8. 1 2 3 4 5 6 7 Cookies Pie Cake Dessert Kids Kids Favorite Dessert 4 16 13 15
7.

Let’s learn!

Best Art Supply in Ms. Smith’s Class

Art SupplyTallies

How many kids like paints?

Best Art Supply in Ms. Jones’ Class

Crayons Crayons

Paints

Markers

1.

Paints

Markers

Key = 1 child = 1 child = 1 child

Look at the graphs. Circle the answer.

Favorite Bird in First GradeFavorite Bird in Second Grade

Turkey

Bluebird Bird

Flamingo

1234567

Kids

Which grade likes more?

How many second graders like or ?

How many first and second graders like ?

Teacher Notes

Turkey

Flamingo

Bluebird

Key = 1 child= 1 child= 1 child

Second Grade

11

9

This page has a lot of information on it. To help students stay focused on the graphs you’re discussing, you may want to consider having students cover the graphs you’re not discussing with a piece of paper. Remind students that they can write the number of tallies, pictures or the amount in each bar next it. This will make it easier for students to remember how many they counted. Guide students through Let’s learn! Point out that both graphs show the same supplies but the supplies were used in 2 di erent classes.

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©
250 Level A Chapter 12 Lesson 7 | Lighthouse Math Comparing Data in Graphs
Try it together!
First Grade 10 10

Look at graphs. Write the answer.

Favorite Game at Recess on Monday

Favorite Game at Recess on Tuesday

How many kids played on Monday?

How many more kids played on Monday than Tuesday?

How many kids played checkers on Monday and Tuesday?

Look at the graphs. Write the answer.

Animals We Saw on Sunday

Animals We Saw on Wednesday

Key = 1 child = 1 child= 1 child

How many were seen on Sunday and Wednesday?

How many animals did the kids see on Sunday?

How many animals did the kids see on Sunday and Wednesday?

©
Lighthouse Curriculum. Copying strictly prohibited.
Lighthouse Math | Level A Chapter 12 Exercise 7 251
Turtle
Dominoes Frog Bunny 1. 2. Checkers 123456 Dominoes
Checkers
Game Tallies
1 2 3 4 5
Kids Animals
turtle frog bunny Kids Games

How

How

How

Teacher Notes

Let’s learn! © Lighthouse Curriculum. Copying strictly prohibited. Name Try it together! 252 Level A Chapter 12 Lesson 8 | Lighthouse Math Review Scariest Insect What We Drink With Lunch What We Drink With Lunch Spider Milk Spider Insect Drink Tallies Tallies Bee Juice Water Bee 1234 Scariest Insect Spider Bee Key = 1 child= 1 child Scariest Insect
the Let’s learn
have
point to the scale and key. Teacher can also use the bar graph to review the word horizontal. Look at the tally chart. Make a bar graph. Write the answer. Milk 123456789 Juice Water Drink Kids Number of Insects Insects
Teacher should be sure to review the vocabulary when working with
graphs. Teacher can
students
many kids drink or ?
many more kids drink than ?
many kids drink , ,
1.
or ?

Look at the bar graph. Make a picture graph. Circle the answer.

What We Eat For Breakfast

Eggs 12345678

How many kids eat or ?

What We Eat For Breakfast

Eggs

Toast

Fruit

Key = 1 child= 1 child= 1 child

How many more kids eat than ?

Which breakfast food do kids eat the most?

Favorite Number

10

3

9 2

Look at the picture graph. Make a tally chart.

Favorite Number

NumberTallies Two

How many kids like the number or ?

How many kids like with two or more dots?

How many more kids like the number than ?

One

Four

©
Lighthouse Math | Level A Chapter 12 Exercise 8 253
Lighthouse Curriculum. Copying strictly prohibited.
One
Two Four
Toast Fruit Food Kids 1. 2.

Chapter 13

254

In

•Understand that money is used to buy and sell things

•See how each piece of coin money has a certain value

•Find monetary values, including the combination of coins

•Add, subtract and compare monetary values, including the combination of coins

•Recognize that the dollar is worth 100 cents

•Find, add and subtract monetary values, including the combination of a dollar and coins

•When finding the total value, we don’t look at the number of coins, but the value of the coins

•Represent a given monetary value in more than one way

•Acting out story problems can help us understand what we need to figure out

•Noticing number sequences can help us count money

Vocabulary Words

Chapter 13, we will be learning about coins and dollars, the values of coins, how to count themandhow to compare money amounts.
¢$
coins penny nickel dime quarter cents ¢ $ dollar 255

Penny: Has a value of 1 cent

Nickel: Has a value of 5 cents

Dime: Has a value of 10 cents

Quarter: Has a value of 25 cents

1. 2.

3.

4.

Teacher Notes

Introduce money as what we use to buy and sell things. Clearly show each coin (heads and tails) and the value of each. If you have real coins, use these to practice too. Have students count by 1s, 5s, and 10s using coins. Teach students how to count by 25 using the hundreds chart (0-200) and then with actual quarters. Show students how to show their work when totaling the value of coins (see example). Help students write the cent sign for each answer. Watch for and encourage students who notice number patterns and equivalencies.

Let’s
© Lighthouse Curriculum. Copying strictly prohibited. Name
learn!
Understanding Basic Units of Money: Coins
Write the value. Try it together!
10¢ 10¢ 10¢ 10¢ 10¢
5¢ 5¢ 5¢ 5¢ 5¢ 5¢ 25¢ 25¢ 25¢ 25¢ 1¢ 1¢ 1¢ 1¢ 1¢ 1¢ 1¢ 256 Level A Chapter 13 Lesson 1 | Lighthouse Math =30¢
51015202530
©
Match the values. 9¢ 35¢ 13¢ 4¢ 50¢ 70¢ 1. 2. 10¢ 10¢ 10¢ 10¢ 10¢ 10¢ 10¢ 5¢ 5¢ 5¢ 5¢ 5¢ 5¢ 5¢ 25¢ 25¢ 1¢ 1¢ 1¢ 1¢ 1¢ 1¢ 1¢ 1¢ 1¢ 1¢ 1¢ 1¢ 1¢ 1¢ 1¢ 1¢ 1¢ 1¢ 1¢ 1¢ 1¢ 1¢ 1¢ 1¢ 1¢ 1¢ Lighthouse Math | Level A Chapter 13 Exercise 1 257 ¢ ¢
Lighthouse Curriculum. Copying strictly prohibited. Trace and draw.

=23¢

Try it together!

Match the values.

1. 10¢ 10¢ 5¢ 5¢

29¢ 57¢ 10¢ 22¢ 37¢ 31¢ 10¢ 10¢ 10¢

25¢ 25¢ 25¢

1¢ 1¢ 1¢ 1¢ 1¢ 1¢ 1¢ 1¢ 1¢ 1¢

1¢ 258 Level A Chapter 13 Lesson 2 | Lighthouse Math

Teacher Notes

© Lighthouse Curriculum. Copying strictly prohibited. Name
Let’s learn!
Combining Basic Units of Money: Coins
Introduce money as what we use to buy and sell things. Clearly show each coin (heads and tails) and what each coin is worth. Explain that they have used a number line and a hundreds chart to count by 1s, 5s, and 10s. They can also skip count with money and coin values too. Emphasize starting with the greatest value first in order to make counting up easier. Teach students how to count by 25s by using the hundreds chart (0-200) first and then by using actual quarters. 10¢ 10¢ 10¢ 10¢

5.

6.

Teacher Notes

Looking at number 1, are there any quarters? Count those first. 1 quarter is 25 cents. 2 quarters is 50 cents. Now look for dimes. Each dime is 10 cents, so we can count up by 10s from 50 to 60 and 70. Now we need to add the nickels. Skip count by 5s from 70 to 75 and 80. Then, we add the pennies at the end. So, how much change do we have here? 81 cents.

Write the value. 1.
© Lighthouse Curriculum. Copying strictly prohibited.
2. 4. 3.
10¢ 10¢ 10¢ 10¢ 5¢ 5¢ 5¢ 5¢ 10¢ 10¢ 5¢ 5¢ 25¢ 25 50 60 70 75 80 81 10¢ 10¢ 5¢ 5¢ 1¢ 25¢ 25¢ 10¢ 10¢ 5¢ 5¢ 1¢ 1¢ 1¢ 1¢ 10¢ 10¢ 25¢ 25¢ 25¢ 1¢ 1¢ 10¢ 10¢ 10¢ 25¢ 1¢ 1¢ Lighthouse Math | Level A Chapter 13 Exercise 2 259 =81¢

We can solve story problems with money!

Jacob had 2 25¢ . Then his friend gave him 2 10¢

How many cents does Jacob have in all?

=70¢

Try it together!

1. 2.

Adam had 4 10¢ . Then he earned 4 more 10¢ How many cents does Adam have in all?

Caleb had 1 25¢ , 3 10¢ and 2 5¢ . Then his grandfather gave him 2 5¢ .

What is the value of the coins Caleb has all together?

Teacher Notes

Introduce money as what we use to buy and sell things. Clearly show each coin (heads and tails) and what each coin is worth. Explain that just how they have been counting on the numberline and hundreds chart by 1s, 5s, and 10s, they get to do it with money now too. Emphasize starting with the greatest value first in order to make counting up easier. Explain that we can draw and label circles to represent coins and help us add. Emphasize always labeling the answer with the cent sign. Have real (or plastic replica) coins for all students to use to help them count the change.

© Lighthouse Curriculum. Copying strictly prohibited. Name
Let’s learn!
Adding Basic Units of Money: Coins
2550
60 10 20 30 40 ... 50 60 70 80
... ...
70
10¢ 10¢ 10¢ 10¢ 10¢ 10¢ 10¢ 10¢ 10¢ 10¢ 25¢ 25¢ 260 Level A Chapter 13 Lesson 3 | Lighthouse Math
Solve the story problem. =¢ =¢

2. 3.

Match the values.

Tim has 3 10¢ in his wallet. He finds 1 5¢ at home. Then, he finds 5 1¢ in his car. What is the value of Tim’s coins all together?

Write how many cents in all. =¢ =¢

Cindy worked and earned 4 5¢ , 1 25¢ , 1 10¢ , and 1 1¢ How much money did Cindy earn?

© Lighthouse Curriculum. Copying strictly prohibited.
32¢ 56¢ 28¢ 45¢ 1. 1¢ 1¢ 10¢ 10¢ 10¢ ... 25¢ 25¢ 1¢ 5¢ Lighthouse Math | Level A Chapter 13 Exercise 3 261 ... 10¢ 10¢ 1¢ 1¢ 1¢ 5¢ =¢ =¢ ... 25¢ 10¢ 10¢ =¢ =¢

The cookie costs 50 cents.

Write

1. 2.

Let’s find the change!

Here is one dollar. How much change will I get back?

Teacher Notes

Explain that when we spend, give away or lose coins, we are subtracting or taking away the coins’ value from our original coins’ value.

1. Count how much money there is in number 1. How much money is there? Now what if I told you that you spent 1 nickel and 1 penny? Cross them out. How much money is left?

Guide students to cross out each coin and count up the new value.

2. Count how much money is in number 2. How much money is there? Now what if I told you that we lost 1 dime, 1 nickel and 1 penny. Cross those out. How much money is left?

© Lighthouse Curriculum. Copying strictly prohibited. Name Try
Basic Units of Money: Coins
Let’s learn!
it together! Subtracting
10¢ 10¢ 10¢ 10¢ 5¢ 5¢ 5¢ 1¢ 1¢ 1¢ 1¢ 1¢ 1¢ 1¢ 1¢ ... ... 262 Level A Chapter 13 Lesson 4 | Lighthouse Math
over =¢
over =¢
Left
Left
how
in all.
many cents

Start with =¢

Start with =¢

Left over =¢ Left over =¢ Solve.

Start with =¢

Left over =¢ Left over =¢

Teacher Notes

Here we have di erent amounts of coins. First we have to count up and see how much money each group is worth. Write your answer in the start with space. Now we can spend this money! For number 1, you spend 1 quarter and 1 dime. How much is left over? Cross out the correct coins, subtract and find the value. 2. You spend 1 quarter, 3 dimes and 2 nickels. Cross those out and write how much money you have left over. 3. You spend 4 dimes, 2 nickels and 4 pennies. Cross them out. How much is left over? 4. You spend 4 dimes and 4 nickels. How much money do you have left?

Guide students to count, cross out and find the amount of money left over. Write the cents sign.

© Lighthouse Curriculum. Copying strictly prohibited.
1. 3. 2. 4. 25¢ 25¢ 10¢ 10¢ 25¢ 10¢ 10¢ 10¢ 10¢ 10¢ 10¢ 10¢ 10¢ 10¢ 10¢ 10¢ 10¢ 5¢ 5¢ 5¢ 5¢ 5¢ 5¢ 1¢ 1¢ 1¢ 1¢ 1¢ 1¢ 1¢ 1¢ 1¢ 1¢ 1¢ 5¢ 5¢ 5¢ 1¢ 1¢ 1¢ Lighthouse Math | Level A Chapter 13 Exercise 4 263
Start with =¢
Try it together! Let’s learn! © Lighthouse Curriculum. Copying strictly prohibited. Name Teacher Notes Money helps us buy things. Di erent things costs di erent amounts. Remember that it is not just about the number of coins, but the value of each coin. Look at the prices and count the coins to figure out each cost. Circle the one that costs more. Notice that it is not always the one with the most coins. Circle which costs more. 15¢ 45¢ 42¢ 84¢ 69¢ 5 dimes and 9 pennies 9 dimes and 9 pennies. Relating Monetary Value Using Basic Units of Money: Coins Which costs more? 1. 3. 2. 4. 10¢ 10¢ 10¢ 10¢ 10¢ 10¢ 10¢ 5¢ 5¢ 85¢ 264 Level A Chapter 13 Lesson 5 | Lighthouse Math
Show the value with coins. Circle the one that costs more. 53¢ 69¢ 99¢ 25¢ 88¢ 75¢ 25¢ 47¢ 55¢ 75¢ 32¢ 39¢ 1. 3. 5. 2. 4. 6. Bonus! Lighthouse Math | Level A Chapter 13 Exercise 5 265 49¢
© Lighthouse Curriculum. Copying strictly prohibited.

Let’s learn!

$1=100¢

Try it together!

Trace and draw.

Teacher Notes

Introduce money as what we use to buy and sell things. Explain and show (with actual pennies) that a dollar is worth 100 pennies, or 100¢. Sometimes it is easier to write $1 than 100¢. Help students use actual coins (or plastic replicas) and represent coins on paper using circles or letters (P, N, D, Q) for each coin. Use visuals when counting up to see how many more coins are needed to make a dollar. Watch for and encourage students who use number sequences (eg. counting by 10s, and then 1s) to help them count up more e iciently.

Name
© Lighthouse Curriculum. Copying strictly prohibited.
Understanding and Counting on to Make One Dollar
266 Level A Chapter 13 Lesson 6 | Lighthouse Math
1. 2. 3. 4.
=¢ =¢ =$ =$ $ ¢

Joshua had 50¢. How many more does he need to make $1?

David had 70¢. How many more does he need to make $1?

Nathaniel had 89¢. How many more does he need to make $1?

Jackson had 96¢. How many more does he need to make $1?

Teacher Notes

If a number ends in a zero, we can count by 10s to count up to

using ones and tens until you reach 100 cents which is 1 dollar.

©
60, 70, 80, 90, 100 10,20,30,40,50
the story problem. Write the answer. Solve. 0 10 20 30 40 50 60 70 80 90 100
Lighthouse Curriculum. Copying strictly prohibited.
Solve
a dollar.
to
up to 100
I'll read these problems
you. Count
1. 2. 3. 4. 5.
Lighthouse Math | Level A Chapter 13 Exercise 6 267 = 50¢ = ¢ = ¢ = ¢ 40¢ + ¢ = 100¢70¢ + ¢ = $1 10¢ + ¢ = 100¢50¢ + ¢ = $1
6.

Teacher Notes

If you have real coins or plastic money, use it to help count up values. Encourage students to touch and say the value of each coin as they count. Explain that it is easiest to start with the largest value coin first and then count up by 10s, 5s or 1s.

© Lighthouse Curriculum. Copying strictly prohibited. Name
Let’s learn!
Try it together!
= $120¢
a Dollar and Coins
Combining
1. 2.
Write how much. 10¢ 10¢ 10¢ 10¢ 10¢ 10¢ 10¢ 10¢ 5¢ 5¢ 5¢ 5¢ 5¢ 5¢ 25¢ 1¢ 1¢ 268 Level A Chapter 13 Lesson 7 | Lighthouse Math = $ and ¢ = $ . = $ and ¢ =
. =
and ¢ =
. $1 and 20¢ = $1.20
3.
$
$
$
©
strictly prohibited. Write how much. 1. 2. 3. 4. 5. 6. 10¢ 10¢ 10¢ 10¢ 10¢ 10¢ 10¢ 10¢ 10¢ 10¢ 10¢ 10¢ 10¢ 25¢ 25¢ 25¢ 5¢ 1¢ 1¢ 1¢ 1¢ 5¢ 5¢ 1¢ 1¢ 1¢ Lighthouse Math | Level A Chapter 13 Exercise 7 269 = $ and ¢ = $ . = $ and ¢ = $ . = $ and ¢ = $ .
$ and ¢ = $ .
and ¢ = $ . =¢ ¢ ¢ +
Lighthouse Curriculum. Copying
=
= $

Review of Monetary Value

Try it together!

50¢ = $1.30¢ = $1.20¢ =

Using Basic Units of Money: Coins = 1. 2. 3.

= = =

.........

Show it 2 ways. ... ... ... ... ...

... ... .........

Teacher Notes

Clearly show each monetary piece (heads and tails) and what each monetary piece is worth. Before the lesson begins, help students get excited about money and practice how many di erent ways they can show various monetary amounts, using real paper and coins (or plastic and paper replicas). Once in the lesson, help students use actual coins and dollars (or plastic and paper replicas) to help them solve. Encourage students who can find more than 2 ways to show various monetary amounts.

prohibited. Name
Let’s learn! © Lighthouse Curriculum. Copying strictly
10¢ 10¢ 10¢ 10¢ 10¢ 10¢ 10¢ 10¢ 10¢ 10¢ 5¢ 5¢ 5¢ 5¢ 5¢ 5¢ 5¢ 5¢ 5¢ 5¢ 25¢ 25¢ 25¢ 10¢ 10¢ 10¢ 5¢ 270 Level A Chapter 13 Lesson 8 | Lighthouse Math

Solve the story problem. Write how much money there is now.

Asher had 3 25¢ . Then he spent 2 25¢ buying candy. How much money does Asher have left?

Dillion had 3 10¢ . Then he earned 4 5¢ walking dogs. How many cents does Dillon have in all? 10¢ 10¢ 10¢ ......

25¢

Show how much money. Show it in 2 ways!

Teacher Notes

Let's read the story problems together, then show the coins and figure out how much money he has now? Read the story problems out loud. Guide students to draw and count how much money each boy starts with. Then decide together whether they need to add coins or cross out coins. Find the amount of money the boys have now. Write it in the answer space.

© Lighthouse Curriculum. Copying strictly prohibited. 1. 2. 3. 4.
25¢
10¢ 10¢ 5¢ Lighthouse Math | Level A Chapter 13 Exercise 8 271 =¢
25¢ 25¢
... 50¢ = 25¢ 25¢ ... ...
=
Name
272 Ones Tens Hundreds Thousands Ones Tens Hundreds Thousands Ones Tens Hundreds Thousands Ones Tens Hundreds Thousands
Chapter 14

In Chapter 14, we will be reviewing content we have learned throughout the book

•Count and write 0-200

•Identify sequences using objects and numbers

•Add and subtract 0-200

•Review time and calendar

•Review the measurement of weight, length and temperature

•To sequence means to put things in a certain order

•A number line can help us count and notice number sequences

•Adding means to combine two or more amounts to find the total

•Subtracting means to take away one or more amounts from what we started with

•Use our fingers, objects and tens and ones to help us add and subtract

•Use addition to check our subtraction and subtraction to check our addition

•Acting out story problems can help us understand what we need to figure out

•Use the hour and minute hand to tell time

•Keep track of events by using a calendar

•Measure weight, length and temperature using tools

Vocabulary Words

count more less same patterns sequence order add subtract number line ºF inches lbs time date 273 Ones Ones Tens Hundreds Thousands Tens Hundreds Thousands Ones Tens Hundreds Thousands Ones Tens Hundreds Thousands Ones Tens Hundreds Thousands

This shape has 3 sides!

Try it together!

How many sides?

Teacher Notes

Review shapes by counting how many sides they have. If you have objects, show and touch each side as you count. Together, count the 3 sides of the triangle at the top. Guide students to look at the shape, touch and count each side and write how many sides each shape has. Hint, tell them to mark the first side they count and continue to count adjacent sides so they don’t miss one.

strictly prohibited. Name
Let’s learn! © Lighthouse Curriculum. Copying
Shapes and Sides
Review
1. 3. 5. 2.
274 Level A Chapter 14 Lesson 1 | Lighthouse Math
4. 6.

Circle

Circle what comes next. Draw your own pattern!

Bonus!

Teacher Notes

1 Count the orange circles. Write how many. Count the green triangles. Write how many. Which one has more? Circle groups of 10. Are there any orange circles that don’t get circled? What about the triangles? Which one has more rows of ten? How many are not in a row of ten?

Guide students to look for patterns and practice counting skills with these groups of shapes.

© Lighthouse Curriculum. Copying strictly prohibited. © Lighthouse Curriculum. Lighthouse
Curriculum. Copying strictly prohibited.
Math
2 Find the next 2 shapes in the pattern. How many sides do these purple shapes have? the one that is less.
1. 2. 2 1 Lighthouse Math | Level A Chapter 14 Exercise 1 275
10,10,20,30,31,32 20,21,22,23,24,25,26,27,28,29

Teacher Notes

Guide students to count the blocks. Remind students that the blue blocks are in groups of ten. Count them together. Look for the relationship between the blocks and the number they represent. Which one shows the most? Which one shows more yellow cubes? Look at 25 and 52. How are they the same? How are they di erent? Look for ideas about how many blues versus how many yellows.

Let’s learn! © Lighthouse Curriculum. Copying strictly prohibited. Name Ones Tens Hundreds Thousands Ones Tens Hundreds Thousands Ones Tens Hundreds Thousands Ones Tens Hundreds Thousands Ones Tens Hundreds Thousands Ones Tens Hundreds Thousands Ones Tens Hundreds Thousands Ones Tens Hundreds Thousands Ones Tens Hundreds Thousands Ones Tens Hundreds Thousands Ones Tens Hundreds Thousands Try it together!
Review Counting, Writing, and Comparing Numbers 0-200 Ones Tens Hundreds Thousands Ones Tens Hundreds Ones Tens Hundreds Thousands Ones Tens Hundreds Thousands Ones Tens Hundreds Ones Tens Hundreds Thousands Ones Tens Hundreds Thousands Ones Tens Hundreds Thousands Ones Tens Hundreds Thousands Ones Tens Hundreds Thousands Ones Tens Hundreds Thousands Ones Tens Hundreds Thousands Ones Tens Hundreds Thousands Ones Tens Hundreds Thousands Ones Tens Hundreds Thousands Ones Tens Hundreds Thousands Ones Tens Hundreds Ones Tens Hundreds Thousands Ones Tens Hundreds Ones Tens Hundreds Thousands Ones Tens Hundreds Thousands Ones Tens Hundreds Thousands Ones Tens Hundreds Thousands Ones Tens Hundreds Thousands Ones Tens Hundreds Thousands Ones Tens Hundreds Thousands Ones Tens Hundreds Thousands Ones Tens Hundreds Thousands Ones Tens Hundreds Thousands Ones Tens Hundreds Ones Tens Hundreds Ones Tens Hundreds Ones Tens Hundreds Ones Tens Hundreds Ones Tens Hundreds Thousands Ones Tens Hundreds Thousands Ones Tens Hundreds Thousands Ones Tens Hundreds Thousands Ones Tens Hundreds Thousands
276 Level A Chapter 14 Lesson 2 | Lighthouse Math
the
I can trade 10 cubes for 1 ten rod!
1. 3. 2. 4.
Write
number shown.
© Lighthouse Curriculum. Copying strictly prohibited. Ones Tens Ones Tens Ones Tens Ones Tens Ones Tens Ones Tens Ones Tens Ones Tens Ones Tens Ones Tens Ones Tens Ones Tens Ones Tens Ones Tens Ones Tens Ones Tens Ones Tens Ones Tens Ones Tens Ones Tens Ones Tens Ones Tens Ones Tens Ones Tens Ones Tens Hundreds Thousands Ones Tens Hundreds Thousands Ones Tens Hundreds Thousands Ones Tens Hundreds Thousands Ones Tens Hundreds Thousands Ones Tens Hundreds Thousands Ones Tens Hundreds Thousands Ones Tens Hundreds Ones Tens Hundreds Ones Tens Hundreds Ones Tens Hundreds Ones Tens Hundreds Ones Tens Hundreds Thousands Ones Tens Hundreds Thousands Ones Tens Hundreds Thousands Ones Tens Hundreds Ones Tens Hundreds Ones Tens Hundreds Ones Tens Hundreds Ones Tens Hundreds Ones Tens Ones Tens Ones Tens Hundreds Ones Tens Hundreds 1. 28 38 48 100 50 Lighthouse Math | Level A Chapter 14 Exercise 2 277 Match.

Review Addition Subtraction

Teacher Notes

Sums and Di

with Numbers from 0-20

Let’s learn!
Name
© Lighthouse Curriculum. Copying strictly prohibited.
erences
Review addition and subtraction by discussing the di erent strategies to add and subtract. Strategies include doubles, doubles plus one, subtracting by making a ten, drawing, using fingers, counting up, counting back, using a ten frame and so on. 278 Level A Chapter 14 Lesson 3 | Lighthouse Math
7 + 3 = 7 + 7 = 12 − 6 = 20 − 11 = 6 + 9 = 10 − 3 = 107
Try it together!
Draw. Write the sum or di erence. 1.
3. 2. 4.

Teacher Notes

Circle the sign (plus or minus) first. Then solve the problem.

© Lighthouse
strictly prohibited. Lighthouse Math | Level A Chapter 14 Exercise 3 279
the sum or di erence.
Curriculum. Copying
Write
17 + 2 19 1 + 2 19 + 1 7 + 7 15 + 3 11 + 6 5 − 4 15 − 5 10 + 1 20 + 0 10 − 2 9 − 6 3 + 7 9 + 7 12 − 6 19 − 3 3 + 3 4 + 4 6 − 6 1 + 4 11 + 3 16 − 8 10 + 5 11 − 2 10 − 4 5 + 4 1 + 6 20 − 10 9 − 9 1
+ 1 1. 2. 3. 4. 5.
Let’s learn! © Lighthouse Curriculum. Copying strictly prohibited. Name Try it together! Teacher Notes Practice counting by 1s, 2s, 5, and 10s. Use the number lines to help. Guide the students to find the missing numbers on each number line. Help them look at the line and try to figure out the pattern. Some students may need to write or say the numbers by ones to figure out the number, but encourage them to look for patterns that fit the skip counting you practiced. Review and Extend Numerical Sequences 0-200 Write the missing numbers. 1. 3. 2. 4. 280 Level A Chapter 14 Lesson 4 | Lighthouse Math 8486889092949698100102 20 24 2830 34 15 2530 40 50 80 100110 130 70 74 78 828486 Let’s Skip Count!

Write the missing numbers.

Teacher Notes

Let’s review our numbers using this hundreds chart. But, uh oh, some of the numbers are missing. These pictures are covering up some numbers. We need to find out which ones! Let’s count together. 1, 2, 3, 4,

6, 7, 8.... yellow star. What is this yellow star covering up? A 9 - that’s right! Find the yellow star below. Now write 9 under that star. Keep counting. If you find a picture, figure out what it’s hiding and write that missing number under the picture below.

© Lighthouse Curriculum. Copying strictly prohibited.
1234567810 11121314151617181920 212223242526 282930 31 32 3334353637383940 4142434445464748 50 5152535556575960 6263656667686970 7172747577787980 818283848586 87 888990 9192939495969798100
5,
Lighthouse Math | Level A Chapter 14 Exercise 4 281

Joshua grew 67 .

Then he ate 15 of the . How many does Joshua have left over?

Try it together!

Solve

Timothy picked 25 .

Then he picked 24 more . How many did Timothy pick in all?

10,20,30,40,50...60,67

Ezra saw 16 .

Then he saw 23 more . How many did Ezra see?

Teacher Notes

52

67 −15 52 + +

Read problems to students as needed. Help students first picture what is happening in the story, and then retell it in order to figure out which operation will help them solve. Act out stories using actual tens and ones blocks to represent the amounts in the story problems. Watch for students who get stuck on which operation to choose. Prompt them to go back to the story and look for keywords to help them with this step.

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200 Using Addition and Subtraction
Review and Extend Story Problems Through
the
282 Level A Chapter 14 Lesson 5 | Lighthouse Math
story problem, using tens and ones. Check with equation. 1. 2.

Ones Tens Hundreds Thousands

Ones Tens Hundreds

Ones Tens Hundreds Thousands

Kaiden had 25 . Then his friend gave him 13 more . How many does Kaiden have now?

Solve + Ones Tens Hundreds

the story problem. Check with tens and Ones Tens Hundreds

Ones Tens Hundreds Thousands Ones Tens Hundreds Thousands

Ezekiel had 35 . Then his friend ate 20 of the . How many does Ezekiel have left?

Teacher Notes

Ones Tens Hundreds Thousands

Ones Tens Hundreds Thousands

Ones Tens Hundreds Thousands

Ones Tens Hundreds Thousands Ones Tens Hundreds Thousands Ones Tens Hundreds Thousands

Ones Tens Hundreds Thousands Ones Tens Hundreds Thousands Ones Tens Hundreds Thousands

Ones Tens Hundreds Thousands

Ones Tens Hundreds Thousands

Ones Tens Hundreds Thousands

Ones Tens Hundreds Thousands

Ones Tens Hundreds Ones Tens Hundreds Thousands

1. 2. 3. Ones Tens Hundreds

Ones Tens Hundreds Thousands

Ones Tens Hundreds Thousands Ones Tens Hundreds Thousands Ones Tens Hundreds Thousands

Read the story problems out loud. Act out and decide whether to add or subtract. Help students cross out cubes to subtract.

Ones Tens Hundreds Thousands Ones Tens Hundreds Thousands Lighthouse Math | Level A Chapter 14 Exercise 5 283

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ones.
Garrison had 17 . Then his brother gave him 12 more . Now how many does Garrison have? +
Let’s learn! © Lighthouse Curriculum. Copying strictly prohibited. Name Try it together! Review Addition and Subtraction 0-200 Teacher Notes Review that using subtraction can help us check addition and that using addition can help us check subtraction. Show examples to model how addition can be used to check subtraction before beginning the lesson. Help students use their fingers, other objects and tens and ones to add and subtract each place value. Watch for students who need to count out loud in order to count accurately. 38 − 13 25 25 +13 38 55 − 23 43 − 11 76 − 53 99 − 45 Subtract means take away. Use addition to check! Ones Tens Hundreds Thousands Ones Tens Hundreds Thousands Ones Tens Hundreds Thousands Ones Tens Hundreds Thousands Ones Tens Hundreds Thousands Ones Tens Hundreds Thousands Ones Tens Hundreds Thousands Ones Tens Hundreds Thousands Ones Tens Hundreds Thousands Ones Tens Hundreds Thousands Ones Tens Hundreds Thousands 1. Ones Tens Hundreds Thousands Ones Tens Hundreds Ones Tens Hundreds Ones Tens Hundreds Ones Tens Hundreds Ones Tens Ones Tens Ones Tens Ones Tens Ones Tens Ones Tens Hundreds Ones Tens Hundreds Ones Tens Hundreds Ones Tens Hundreds Ones Tens Ones Tens Ones Tens Ones Tens Hundreds Thousands Ones Tens Hundreds Thousands Ones Tens Hundreds Thousands Ones Tens Hundreds Ones Tens Hundreds Ones Tens Hundreds Ones Tens Hundreds Ones Tens Ones Tens Ones Tens Ones Tens Ones Tens Ones Tens Ones Tens Hundreds Thousands Ones Tens Hundreds Thousands Ones Tens Hundreds Thousands Ones Tens Hundreds Thousands Ones Tens Hundreds Thousands Ones Tens Hundreds Ones Tens Hundreds Ones Tens Hundreds Ones Tens Hundreds Ones Tens Ones Tens Ones Tens Ones Tens Ones Tens Ones Tens Ones Tens Ones Tens Ones Tens 284 Level A Chapter 14 Lesson 6 | Lighthouse Math Match to show the work.

Teacher Notes

Remind students to draw tens rods and unit cubes to help solve for each problem. Tell students to check their subtraction by checking with addition.

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22 + 23 10 + 53 99 — 8 23 + 53 37 + 51 79 — 31 32 + 11 19 + 30 34 — 13 54 + 45 65 + 21 88 — 11 3 + 3 = 5 + 5 = 4 + 4 = 3 + 7 = 6 + 4 = 8 + 2 =
5. Lighthouse Math | Level A Chapter 14 Exercise 6 285 Write the answer.
the answer.
the di erence. Check with addition.
1. 2. 3. 4.
Write
Find

learn!

Joshua has a dentist appointment on June 15th at 2:00 pm.

Try it together!

Use the calendar.

272625 232221 29283031

Teacher Notes

Review the calendar and the clock.

You can ask di erent questions to help navigate and learn from the calendar. You can guide students to color certain days, say the days of the week in order etc.

What month is this? How many days in a week? What day is the 4th? There are raindrops on the 9th, what day of the week will it rain? How many Fridays are in this month? How many days are in the whole month? What is the date when library books are due?

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Review of Time and Calendars
Sun Mon Tue Wed Thu Fri Sat June 2021 54321 1211109876 19181716 1413 26252423222120 282930 27 Sun Mon Tue Wed Thu Fri Sat August 2021
21 13121110 87
1.
3456
20191817161514
286 Level A Chapter 14 Lesson 7 | Lighthouse Math

Teacher Notes

Look at the time. Show it on the clock provided. Where does the short hand point? Draw in the hands of the clock. Look at the calendar. Write the date that is missing.

© Lighthouse Curriculum. Copying strictly prohibited. Sun Mon Tue Wed Thu Fri Sat Sun Mon Tue Wed Thu Fri Sat October 2022 August 2022 56 6 7 7 4 4 3 3 2 2 1 1 14 14 13 13 12 12 11 11 10 10 9 9 8 8 21 21 20 20 19 19 18 18 16 16 17 17 15 15 28 28 27 27 26 26 25 25 24 24 23 23 22 22 30 31 31 29 29 Sun Mon Tue Wed Thu Fri Sat Sun Mon Tue Wed Thu Fri Sat June 2022 February 2022 34 5 2 4 1 321 11 12 10 11 9 1098 678 7 5 6 18 19 17 18 16 17 15 16 1314 1415 12 13 25 26 24 25 23 24 22 23 2120 2120 27 28 282930 26 27
7 : 00 10 : 30 1. 2. 3. 4. 2 : 00 5 : 30 Lighthouse Math | Level A Chapter 14 Exercise 7 287
Fill in the time and date.

Teacher Notes

Explain that this lesson is reviewing measuring weight, length and temperature. Go over definitions with students of relevant vocab. Model excitement at how there are even more ways to measure weight, length and temperature. Have them practice reading a scale, ruler and thermometer before beginning the lesson. Watch for students who need to count out loud in order to measure accurately.

© Lighthouse
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Curriculum. Copying
Try it together!
13 Review Weight, Length and Temperature
1. 2. 3.
7 8 9 01 11 21 1 3 14 10 11 1 2 31 41 51 1 6 17 288 Level A Chapter 14 Lesson 8 | Lighthouse Math
the
weight. in 4 in in 18 19 2 0 12 3222 24 lbs lbs lbs
4.
Write
correct measurement or

Find the temperature.

Fill in the correct temperature.

Teacher Notes

1 Write the temperature shown on the thermometers. Take your red crayon and color the thermometer to show the temperature given. Which thermometer shows the highest temperature? How does a high temperature look on a thermometer? What kind of temperatures do you color more red? less red?

2 Draw a picture of something you might wear or do when it is 80 degrees out. What would you do or wear when it is 26 degrees?

Draw. Bonus! 60˚F 80˚F 110°F 95°F 100°F 80˚F 20˚F 50°F 30°F 40°F
© Lighthouse Curriculum. Copying strictly prohibited.
1. 2. 3. 4. 2 1 Lighthouse Math | Level A Chapter 14 Exercise 8 289
© Lighthouse Curriculum. Copying strictly prohibited. 290 Level A | Glossary | Lighthouse Math Add to bring two or more numbers together to make a total; counting up to make more 3 R1-2 Addend any number added to another number 6 R1-2 2 + 3 5 Addition sentence numbers, a plus sign and an equal sign used together to show addition 10 R1-4
model Part Part Part Part Whole a rectangle cut into the number of pieces in the whole; part-part-whole visual model to represent the parts of a number sentence 112 5-1 Sun Mon Tue Wed Thu Fri Sat May 2021 1 8765432 1514131211109 22212019181716 29282726252423 3130 Calendar tells time by giving the month, day and year; a chart or system that organizes days, weeks, months and year 192 9-5 Cents the smallest unit of money; penny is worth one cent; there are 100 cents in 1 dollar 256 13-1 Closed polygon has at least 3 sides, all sides are straight lines, lines connect to form a complete polygon. 222 11-2 Check work use the opposite operation within the same fact family to be sure your answer is correct 106 4-7 Coins round metal objects, money; di erent coins represent di erent values 256 13-1 Combine to put together or add in all 112 5-1 Compare check to see which number is bigger, smaller, or the same 140 6-6 Cone a 3D shape with a circular base that come to a point at the opposite end 230 11-6 Count list or name one by one in order to find total 4 R1-1
on a
mental
start with the biggest
and then count up from there 4 R1-1
¢
Bar
Count
beginning
math addition strategy;
number
Glossary 2 + 3 = 5
2 + 2 = 4

Defining attributes of shape

Lighthouse Math | Level A | Glossary 291 Cube a 3D shape that has 6 square sides that are equal in size 230 11-6 Cylinder a 3D shape that is a round object with a circle on each end 230 11-6 Date a specific day on the calendar; month/day/year to represent that point in time 287 14-7 Day 24 hours; there are 7 days in a week 192 9-5
© Lighthouse Curriculum. Copying strictly prohibited.
traits that are always true for the shape (number of sides, number of vertices, closed, and 2D) 222 11-2 Di erence the answer to a subtraction problem 168 8-2 Digital clock a display of the time in numbers only, no hands 185 9-1 Dime (10¢) a coin worth 10 cents 256 13-1 Dollar value equal to 100 cents; can be made up of coins or a one-dollar bill 266 13-6 Doubles fact 4 + 4 = 8 an addition fact where both addends are the same 96 4-2 = Equal exactly the same value or amount 84 3-5 Face clock a circle with 12 numbers around it with 2 hands that are used to tell time 184 9-1 ºF Fahrenheit unit used to measure temperature 214 10-7 Fourth 1/4 one part of an object or group that is cut into 4 equal parts 228 11-5 Hour hand the short hand on the clock that points to and indicates the hour 184 9-1 Hundreds chart 12345678910 11121314151617181920 21222324252627282930 31 32 3334353637383940 41424344454647484950 51525354555657585960 61626364656667686970 7172737475 76 77787980 818283848586 87 888990 919293949596979899100 a 10 by 10 grid with all of the numbers from 0-100 130 6-1 Glossary $ 04 : 00

Glossary

Open

© Lighthouse Curriculum. Copying strictly prohibited. 292 Level A | Glossary | Lighthouse Math
In all total, all together, sum; words to show addition 6 R1-2 Inches (in) a unit of length 206 10-3 Left over the amount you have after you take away 12 R1-5 Length how long or short something is 202 10-1 Less not as many; a smaller number or amount; a term used to compare number values 32 R2-6 Minute hand the long hand on the clock that points to the minute 184 9-1 Month groups of 28-31 days; there are 12 months in a year 192 9-5 More a bigger number or greater amount; a term used to compare number values 26 R2-3 Nickel (5¢) a coin worth 5 cents 256 13-1 Non-defining shape traits that could be true for any shape (color, size, pattern, direction of the shape) 222 11-2 Numberline 0123456789 10 helps put numbers in order; a tool to help with counting 8 R1-3 Number sentence 3 + 5 = 8 numbers and symbols used together to show a math problem 19 R1-8 Numbers Digits; 0, 1, 2, 3, 4, 5, 6, 7, 8, 9 set into place values 4 R1-1 O’clock 3:00 = 3 o 'clock what we say after the numbers when telling time to the hour 184 9-1 Ones a single unit; the digit on the far right in a whole number 136 6-4 Order 2, 4, 6, 8... the arrangement of things 22 R2-1
shape a shape with 3 or more sides but the sides do not connect to form a closed polygon. 220 11-1 Ordinal numbers numbers used to show order - first, second, third, etc. 196 9-7 Part when a number is broken into pieces, one piece 112 5-1 Patterns things that repeat in a logical way 28 R2-4

+ Plus sign

©
Lighthouse Math | Level A | Glossary 293 Glossary Penny (1¢) a coin worth 1 cent 256 13-1
Lighthouse Curriculum. Copying strictly prohibited.
math symbol to show addition 6 R1-2 Pounds (lbs) a unit used to measure measuring weight; 16 oz = 1 lb 212 10-6 Quarter (25¢) a coin worth 25 cents 4 quarters = 1 dollar 256 13-1 Rectangle shape with 4 sides and 4 right angles 220 11-1 Rectangular prism a 3D shape with 6 flat rectangular sides 230 11-6 Related facts the addition and subtraction facts that have the same whole and parts 114 5-2 Ruler a tool used to measure length 206 12-3 Scale a tool used to measure weight 210 10-5 Sequence when things are put in a certain order: first, next, last 22 R2-1 Sides straight lines that form shapes 222 11-2 Skip count counting forward by a certain number; keep adding the same number each time to the previous number. 36 R2-8 Square shape with 4 equal sides, 4 right angles 220 11-1 Start with the amount you take away from in a subtraction problem 58 2-1 Story problems word problems or problems that use stories to indicate mathematical application and thinking 180 8-8 Subtract take away from the amount you start with 12 R1-5 Subtraction sentence 5 - 3 = 2 numbers, a subtraction sign, and an equal sign used together to show subtraction. 15 R1-6 Sum the answer to an addition problem 40 1-6 Take away the amount being subtracted in a subtraction problem 12 R1-5 Tally Mark form of numeral used for counting ; bundled in groups of 5. 238 12-1 7 — 6 =

Vertical addition method of adding where numbers are lined up, in columns one above the other; a number sentence with

© Lighthouse Curriculum. Copying strictly prohibited. 294 Level A | Glossary | Lighthouse Math
Temperature 32ºF how hot or cold something is; measured in degrees Fahrenheit (F) 214 10-7 Ten frame a grid with 2 rows of 5 to make 10 boxes; aids in counting 44 1-3 Tens groups of 10 units; the 2nd digit from the right in a whole number 136 6-4 Thermometer ºF a tool used to measure temperature 214 10-7 Time is the
the basic unit of time is the second, then minute, hours, days, weeks, months, years 184 9-1
the amount all together,
all, the sum; answer
an addition equation 40 1-1 Triangle shape with 3 sides, 3 angles 220 11-1
around facts when adding, you can ‘turn around’ or switch the order of the addends and get the same sum 114 5-2 Trapezoid polygon with 4 sides; one pair of parallel sides 220 11-1
numbers stacked going up and down 46 1-4 Vertex where 2 straight lines meet to form a corner (vertices - plural) 222 11-2 Week a group of 7 days; 52 weeks in a year 192 9-5 Weight a measure of how heavy something is 210 10-5
a
into parts, all of the parts make a whole together 112 5-1 3 + 2
Glossary
sequence of events-past, present and future.;
Total
in
to
Turn
the
Whole when
number is broken

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