Lesson 4

Find All the Ways (optional)

Lesson Purpose

The purpose of this lesson is for students to find all the ways to decompose a number.

Lesson Narrative

This lesson is optional because finding all of the ways to decompose a number is not an expectation of the kindergarten standards. Students look for and make use of structure (MP7) as they use the patterns in decompositions to help them find all the possible ways to decompose a number.

  • Engagement
  • MLR8

Learning Goals

Teacher Facing

  • Compose and decompose numbers up to 9.
  • Find all the ways to decompose a number.

Student Facing

  • Let’s find all the ways to break apart a number.

Required Preparation

Activity 3:

  • Gather materials from: 
    • What’s Behind My Back?, Stage 1
    • Check It Off, Stage 1
    • Find the Value of Expressions, Stage 1
    • Bingo, Stages 1–3
    • Shake and Spill, Stages 1–3

CCSS Standards

Lesson Timeline

Warm-up 10 min
Activity 1 10 min
Activity 2 15 min
Activity 3 20 min
Lesson Synthesis 10 min
Cool-down 0 min

Teacher Reflection Questions

What part of the lesson went well today in terms of students’ learning? What did you do that made that part go well?

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Additional Resources

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