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 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?