# Lesson 6

Manzanas rojas y amarillas

### 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

• Mostremos lo que pasa en una historia.

### 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

Building Towards

### 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?