EM2 APPLY Level 1 Module 1 Lesson 1 Thin Slice by General

A Story of Units® Units of Ten

Module 1 ▸ Counting, Comparison, and Addition

Student

1 APPLY

Module 1 Counting, Comparison, and Addition

2 Addition and Subtraction Relationships

3 Properties of Operations to Make Easier Problems

4 Comparison and Composition of Length Measurements

5 Place Value Concepts to Compare, Add, and Subtract

6 Attributes of Shapes · Advancing Place Value, Addition, and Subtraction

A Story of Units® Units

Ten ▸ 1 APPLY

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1 Copyright © Great Minds PBC EUREKA MATH2 1 ▸ M1 Contents Counting, Comparison, and Addition Topic A 3 Count and Compare with Data Lesson 1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 Organize to find how many and compare. Lesson 2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9 Organize and represent data to compare two categories. Lesson 3 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13 Sort to represent and compare data with three categories. Lesson 4 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19 Find the total number of data points and compare categories in a picture graph. Lesson 5 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23 Organize and represent categorical data. Lesson 6 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27 Use tally marks to represent and compare data. Topic B 31 Count On from a Visible Part Lesson 7 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33 Count all or count on to solve put together with total unknown situations. Lesson 8 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37 Count on from a known part and identify both parts in a total. Lesson 9 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41 Count on from both parts and record part–total relationships. Lesson 10 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 47 Count on from 5 within a set. Lesson 11 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 51 See any part in a set and count on. Lesson 12 55 Count on from 10 to find an unknown total. Topic C . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 59 Count On to Add Lesson 13 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 61 Count on from an addend in add to with result unknown situations. Lesson 14 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 65 Count on to find the total of an addition expression. Lesson 15 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 69 Use the commutative property to count on from the larger addend. Lesson 16 73 Use the commutative property to find larger totals. Lesson 17 77 Add 0 and 1 to any number.

Varied

Lesson 18 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 83 Determine whether number sentences are true or false. Lesson 19 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 87 Reason about the meaning of the equal sign. Lesson 20 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 91 Find all two-part expressions equal to 6. Lesson 21 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 95 Find all two-part expressions equal to 7 and 8. Lesson 22 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 99 Find all two-part expressions equal to 9 and 10. Lesson 23 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 103 Find the totals of doubles +1 facts. Lesson 24 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 107 Use known facts to make easier problems. Lesson 25 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 111 Organize, count, and record a collection of objects. Acknowledgments . . . . . . . . . . . . . . . . . . . . . . . 115

Same Total in

Ways

FAMILY MATH Count and Compare with Data

Dear Family,

Your student is using graphs to organize, represent, and interpret data. They collect data by counting various things. Then they represent, or show, the data in different graphs and charts. Your student is also interpreting graphs and charts by comparing the categories. They use the greater than (>) and less than (<) symbols to write comparison number sentences.

Key Terms and Symbols graph greater than symbol > less than symbol < represent

fewer

than

Tally Chart

Animals We See

The number of squirrels is the same as the number of frogs.

2 2 7 Animals

Graph Picture Graph

We See

There are more birds than squirrels. 7 is greater than 2.

2 2 7

7 > 2

Animals We See

There are frogs birds. 2 is less than 7. 2 < 7

2 2

2 is equal to 2. 2 = 2

At-Home Activities

Organize and Compare

Prepare a disorganized pile of two or three types of objects, like forks and spoons. Ask your student to predict whether there are more of one object or the other. Then, have your student line up the objects in separate rows and count the number in each row to check their prediction. Encourage your student to use comparison statements like the following examples to describe the relationship between the groups.

• “There are 4 spoons and 7 forks. 4 is less than 7. There are fewer spoons than forks.”

• “There are 4 spoons and 4 forks. 4 is equal to 4. There is an equal number of forks and spoons.”

Make a Graph

Collect data about objects around you, such as the number of buttons, pockets, and zippers on your clothing or your student’s clothing. Invite them to graph the data by creating a picture graph or tally chart. The graph can help your student to organize and compare the data. Help your student analyze the data by asking the following questions.

• “How many buttons are on your clothes? How many pockets are on your clothes?”

• “Do you have more buttons or more pockets? How do you know?”

1. Color to show how many hats.

I can mark the hats to help me count.

There are 5 hats so I color to the number 5 .

2. Color to show how many apples .

I can count the 4 apples.

I color to the number 4

EUREKA MATH2 1 ▸ M1 ▸ TA ▸ Lesson 1

Name

1 2 3 4 5 6 7 8 9 10 1

1 2 3 4

1 2 3 4 5 6 7 8 9 10

3. Circle the number path that shows more.

There are more hats than apples.

5 is greater than 4 .

I circle the number path that shows 5 .

REMEMBER

4. There are 5 pencils in a cup.

Tam takes 1 out.

How many pencils are in the cup now?

I read the problem.

I see 5 pencils in the cup. Tam takes 1 pencil out, so I cross off 1 pencil.

I count 4 pencils in the cup now.

There are 4 pencils in the cup now.

1. Color to show how many bees.

Color to show how many ants.

Name

1 3 4 5 6 7 8 9 10 2 1

1 3 4 5 6 7 8 9 10 2

the number path that shows more.

Circle

REMEMBER

2. There are 9 bees.

4 fly away.

How many bees are left?

There are bees left.

EM2 APPLY Level 1 Module 1 Lesson 1 Thin Slice

A Story of Units® Units of Ten

FAMILY MATH Count and Compare with Data

Dear Family,

Tally Chart

At-Home Activities

Make a Graph

REMEMBER

REMEMBER

Articles inside

FAMILY MATH Count and Compare with Data