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LESSON 1: SETS We encounter different things in our daily lives. They are of different shapes, colors, sizes, type and classification. These things can be grouped into sets. A set is a group of things put together.
a set of flowers
a set of leaves YOUNG JI INTERNATIONAL SCHOOL/COLLEGE
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a set of fruits
a set of shoes
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a set of books
a set of toys
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a set of balls
a set of umbrella
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The objects in a set are called elements. These elements in a set have their similarities.
a set of circle-shaped things
a set of big animals
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a set of musical instruments
a set of clothes
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a set of sweets
a set of chocolates
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a set of cards
a set of boxes
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An empty set is a set with no elements in it.
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ACTIVITY: A. Match the name of the set in its corresponding picture. A
B
1. a set of fruits
2. a set of vegetables
3. a set of insects
4. a set of shapes
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B. Put a check ( √ ) if the set is an empty set and cross ( X ) if not.
______________ 1.
______________ 2.
______________ 3.
._____________ 4.
________________ 5.
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C. Name each set. Put a check mark (√ ) in the blank
1.
3. ___ a set of kites ___ a set of stars ___ a set of flowers
2.
___ a set of trees ___ a set of flowers ___ a set of birds
4.
___ a set of bees ___ a set of spiders ___ a set of birds
5.
___ a set of girls ___ a set of boys ___ a set of cats
6.
___ a set of cars ___ a set of bike ___ a set of plane
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___ a set of paint ___ a set of crayons ___ a set of pencil
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D. Encircle the object that does not belong to each set.
E. Draw the elements of each set. Color the objects. 1. a set of shapes
2. an empty set
4. a set of red objects
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3. a set of turtles
5. a set of long objects
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LESSON 2: COMPARING SETS Every set may have difference or similarities into another set. We can compare these sets through the number of elements on it. We can use more than or fewer than to compare the number of elements in the set.
There are more boys than girls. The set of boys has more element than the set of girls. The set of girls has fewer elements than the set of boys. We can also use as many as if the sets have the same number of elements.
The two sets have the same number of elements. The set of rabbits is as many as the set of puppies.
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ACTIVITY: A. Put a check mark (√ ) if the statement is correct and cross ( X ) if not. a set of turtles
a set of birds
_____ 1. The set of turtles has more elements than the set of birds. _____ 2.The set of turtles has fewer elements than the set of birds. _____ 3.The set of birds has more elements than the set of turtles. _____ 4.The set of birds has fewer elements than the set of turtles. _____ 5.The set of turtles is as many as the set of birds.
B. Encircle the letter of the set with more elements.
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C. Color the set that has fewer elements.
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D. 1. Which set of animals has more legs? Color the animals.
2. Which set of animals has fewer legs? Color the animals.
3. Which set off animals have the same number of legs? Color the two sets.
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LESSON 3: Numbers 1 to 10
Lucas and Kenjie celebrate their birthdays together. The number of candles indicates how old these two boys are. Lucas’ cake
Kenjie’s cake
How old is Lucas?
How old is Kenjie?
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How many objects are in each set? Let us count to find out.
1.
2.
3.
4.
5.
6.
7.
8.
9.
10.
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We use numbers to tell how many objects there are. We count to know how many objects there are.
Count the balls. How many balls are there? There are _____ balls.
Count the pencils. How many pencils are there? There are _____ pencils.
Count the ice creams. How many ice creams are there? There are _____ ice creams.
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ACTIVITY : A. Count the objects in each set. Write the number in the line.
1. ____
2. ____
3. ____
4. ____
5. ____
6. ____
7. ____
8. ____
9. ___
10. ____
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B. Count, then circle the number for each set.
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C. Which is the set for each number? Color the objects.
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D. Do what is asked. 1. Draw some more fruits to make 8.
2. Draw some more flowers to make 4.
3. Draw some more ribbons to make 9.
4. Draw some more cupcakes to make 5.
5. Draw some more balls to make 7.
6. Draw some more pencils to make 6.
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7. Draw some more pigs to make 3.
8. Draw some more cookies to make 10.
9. Draw some more ice creams to make 8.
10. Draw some more books to make 10.
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E. Read, then answer the questions. 1. Look at your pet dog. How many feet does your pet dog have? ______
2. The board shows the scores of the two teams.
What is the score of the red team? ___ What is the score of the blue team? ___ Which team is the winner? ___
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LESSON 4: Reading and Writing Numbers 1 to 10
How many teachers are there? Is 4 and four the same?
Count the tally marks. Then read the number and the word for each set.
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Numbers can be written in symbols and in words.
Let us try to count numbers using our fingers.
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ACTIVITY: A. Count the objects in each set. Write the number word that tells how many.
There are ______ umbrellas.
There are ______ butterflies.
There are ______ cookies.
There are ______ apples.
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There are ______ chairs.
B. Encircle the correct number word for each set.
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B. Write the numeral for each number.
D. Answer each question. Write the correct number word. 1. How many wheels does a bicycle have?
________________________
2. How many feet do you have? _____________________ 3. How many ears does your friend have? _____________________ 4. How many legs does a kitten have? _______________________ 5. How many fingers does your brother have? ______________________
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E. Which is the set for each number? Color the objects.
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F. Count, and then circle the number for each set.
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LESSON 5: Zero
What number stands for an empty pot?
How many plants do you see on the pot? 1. 2. 3.
Zero (0) is the number that stands for the empty containers. An empty set has nothing in it. The number zero (0) stands for nothing.
Look at the pots below. Encircle the pots that are empty. Match them with the number zero.
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ACTIVITY: A. Find the empty sets. Write 0 in the box.
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B. Count the objects in each set. Write the number in the box.
C. Answer each question. Write the correct number in the line. 1. How many tails do you have? _______ 2. How many legs does a giraffe have? _______ 3. How many tails does a pig have? ________ 4. How many feet do you have? ________ 5. How many eyes do you have? ________ YOUNG JI INTERNATIONAL SCHOOL/COLLEGE
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Lesson 6 Odd and Even Numbers An even number is a number that can be divided into two equal groups. An odd number is a number that cannot be divided into two equal groups. Even numbers end in 2, 4, 6, 8 and 0 regardless of how many digits they have (we know the number 624 is even because it ends in a 4!). Odd numbers end in 1, 3, 5, 7, 9.
Activity Count the blocks. Write the number. Circle odd or even.
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Circle whether the number is odd or even.
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Write an odd or even number inside the apples to match the sign for each apple tree.
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Lesson 7 One More Than Counting and telling the number of objects in a given set Concept of more This is Paolo. On his birthday, he got two sets of gifts. He said that he got more toy cars than balls.
Is Paulo right? How do you know? Possible answers are: 1. There are 4 balls and 5 toy cars. When counting, 5 comes after 4. This means that 5 is more than 4, so Paolo is right. 2. If we pair the toy cars and the balls, we will get the following:
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3. Let us use counters to show the number of balls and the number of toy cars.
To get 5 sticks we need to add one more stick to 4 sticks. So there are more toy cars than balls. So Paolo is right.
Activity What is one more than the given number?
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Lesson 8 “One Less Than� Counting and telling the number of objects in a given set Concept of less This is Luchie. She has two sets of clothes. She said that she has less skirts than blouses.
Is Luchie right? How do you know? Possible solutions are: 1. There are 3 skirts and 4 blouses. When counting, 3 comes before 4. This means that 3 is less than 4, so Luchie is right. 2. If we pair the skirts and the blouses, we will get the following: There is one blouse with no skirt as a pair. This means that there are less skirts than blouses. So Luchie is right.
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3. Let us use counters to show the number of skirts and blouses
To get 3 sticks we need to take away one stick from 4 sticks. So there are less skirts than blouses. So Luchie is right. Activity
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Lesson 9 As Many As
What do you see in the picture? (There are two boys with balls.) Who are the boys? (The boys are John and Roy.) How many balls does each boy have? (Each boy has 3 balls.) Compare the number of balls that John and Roy have. (They have the same number of balls.)
(The number of objects in Set A is as many as the number of objects in Set B.)
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Activity Draw as many objects as those in the given set.
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Lesson 10 Skip Counting by 5
Ana has 20 packs of candies to sell. Each pack has 5 candies. How many candies in all does she need to sell? Read the numbers 5, 10, 15, 20, 25, 30, 35, 40, 45, 50, 55, 60, 65, 70, 75, 80, 85, 90, 95, 100. Activity
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Skip count by 5. Start from 5 then circle the next numbers up to 100.
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Lesson 11 Skip Counting by 10’s How many numbers are there from 1 to 10? (There are 10 numbers from 1 to 10.) How many numbers are there from 11 to 20? (There are 10 numbers from 11 to 20.) How many numbers are there from 21 to 30? (There are 10 numbers from 21 to 30.) How many numbers are there from 31 to 40? (There are 10 numbers from 31 to 40.) How many numbers are there from 41 to 50? (There are 10 numbers from 41 to 50.) How many numbers are there from 51 to 60? (There are 10 numbers from 51 to 60.) How many numbers are there from 61 to 70? (There are 10 numbers from 61 to 70.) How many numbers are there from 71 to 80? (There are 10 numbers from 71 to 80.) How many numbers are there from 81 to 90? (There are 10 numbers from 81 to 90.) How many numbers are there from 91 to 100? (There are 10 numbers from 91 to 100.)
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Write the numbers in the circle.
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