Equal and not equal help young learners compare groups of objects. When two groups are equal, they have the same number of things. A balance scale is a helpful picture because it stays level when both sides have the same amount.
Learning this idea helps children count, match, and understand number sentences.
Key Facts
- Equal means the same amount.
- Not equal means different amounts.
- 3 apples = 3 apples because both groups have 3.
- 4 blocks ≠ 5 blocks because the groups have different numbers.
- The equal sign = means same amount.
- You can match objects one to one to check if two groups are equal.
Vocabulary
- Equal
- Equal means two groups have the same number of objects.
- Not Equal
- Not equal means two groups have different numbers of objects.
- Equal Sign
- The equal sign, =, shows that two amounts are the same.
- Compare
- Compare means to look at two groups and decide how they are alike or different.
- One to One Match
- A one to one match pairs each object in one group with one object in another group.
Common Mistakes to Avoid
- Counting only one group, then guessing the answer. You need to count or match both groups to know if they are equal.
- Thinking equal means the objects look the same. Equal means the number is the same, even if the objects are different colors or sizes.
- Using = when the groups have different amounts. The equal sign should only be used when both sides show the same number.
- Forgetting to match one object with one object. If one group has extra objects left over, the groups are not equal.
Practice Questions
- 1 Mia has 4 crayons and Leo has 4 crayons. Are the groups equal or not equal? Write 4 = 4 or 4 ≠ 4.
- 2 One basket has 5 oranges and another basket has 3 oranges. Are the groups equal or not equal? Write a number sentence using = or ≠.
- 3 A balance scale has 2 teddy bears on one side and 2 toy cars on the other side. The objects are different, but the numbers are the same. Should the scale show equal or not equal? Explain why.