Lesson 8

More Than One Way

Lesson Purpose

The purpose of this lesson is for students to find more than one solution to a Put Together/Take Apart, Both Addends Unknown story problem.

Lesson Narrative

In previous lessons, students solved Put Together/Take Apart, Both Addends Unknown story problems and noticed that there is more than 1 solution. This is the first lesson in which students are asked to find more than one solution to a Put Together/Take Apart, Both Addends Unknown story problem.

  • Representation
  • MLR8

Activity 1: Citrus Juice

Learning Goals

Teacher Facing

  • Find more than one solution to a Put Together/Take Apart, Both Addends Unknown story problem.

Student Facing

  • Let’s find more than one way to solve a problem.

Required Preparation

Activity 3:

  • Gather materials from from: 
    • What’s Behind My Back, Stage 1
    • 5-frames, Stages 1 and 2
    • Make or Break Apart Numbers, Stage 1
    • Math Stories, Stages 1-3

CCSS Standards

Addressing

Building Towards

Lesson Timeline

Warm-up 10 min
Activity 1 10 min
Activity 2 15 min
Activity 3 15 min
Lesson Synthesis 10 min
Cool-down 5 min

Teacher Reflection Questions

In the previous section, students composed and decomposed numbers in multiple ways. How did the work of decomposing numbers in multiple ways prepare students to find more than one solution to a Put Together/Take Apart, Both Addends Unknown story problem?

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