Young mathematicians help Bobbie Bear pick colored buttons out of a box as they learn how to decompose numbers less than 10 into pairs of smaller numbers. To support students with the process, consider creating a worksheet or graphic organizer for recording the different ways they find to break apart numbers. A fun whole-group activity that offers learners of all abilities a chance to strengthen their number sense.

Concepts

addition, decomposing numbers, equations, number sentence, numbers

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Additional Tags

addition, equation, number sentence, decomposing numbers, sum, math

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Pros

• Lesson includes ideas for extending learning about decomposing numbers
• Children are allowed to act out the described situation, offering support as they learn how to break numbers into smaller pairs

Cons

• A set of colored objects is required to model the situation described in the lesson

Common Core

K.OA.A.3 MP4 MP7