Lesson 6
Red and Yellow Apples
Lesson Purpose
The purpose of this lesson is for students to make sense of Put
Together/Take Apart, Both Addends Unknown story problems.
Lesson Narrative
In a previous section, students composed and decomposed numbers up to 9.
In this lesson, students first act out a Put Together, Total Unknown story problem, which was
introduced in the previous lesson. Then students are introduced to a questionless Put
Together/Take Apart, Both Addends Unknown story problem. Red and yellow apples are used as a
context so that students can easily represent the story problems with two-color counters (MP2).
In the next lesson, students will solve a Put Together/Take Apart, Both Addends Unknown story
problem.
- Representation
- MLR8
Learning Goals
Teacher Facing
-
Make sense of Put Together/Take Apart, Both Addends Unknown story problems.
Student Facing
- Let’s show what happens in a story.
Required Materials
Required Preparation
Activity 3:
- Gather materials from:
- What's Behind My Back, Stage 1
- 5-frames, Stages 1 and 2
- Make or Break Apart Numbers, Stage 1
Lesson Timeline
| Warm-up | 10 min |
| Activity 1 | 10 min |
| Activity 2 | 10 min |
| Activity 3 | 25 min |
| Lesson Synthesis | 5 min |
| Cool-down | 0 min |
Teacher Reflection Questions
What connections did students make between the Put Together, Total Unknown
story problem and the Put Together/Take Apart, Both Addends Unknown story problem? How did
acting out, representing and solving the Put Together, Total Unknown story problem prepare
students to make sense of the Put Together/Take Apart, Both Addends Unknown story problem?