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 Materials
Materials to Gather
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
Lesson Timeline
| Warm-up | 10 min |
| Activity 1 | 10 min |
| Activity 2 | 15 min |
| Activity 3 | 15 min |
| Lesson Synthesis | 5 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?