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 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

CCSS Standards

Addressing

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?

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