Lesson 2
Formemos y separemos diseños con fichas geométricas
Lesson Purpose
The purpose of this lesson is for students to compose and decompose numbers up to 9 in more than 1 way.
Lesson Narrative
In a previous unit, students made designs with pattern blocks and counted how many of each pattern block they used. In this lesson, students make and share a design with the same total number of pattern blocks but different numbers of individual pattern blocks.
- Representation
- MLR8
Activity 2: El diseño con fichas geométricas de Han
Learning Goals
Teacher Facing
- Compose and decompose numbers up to 9.
Student Facing
- Formemos y separemos diseños hechos con fichas geométricas.
Required Materials
Materials to Gather
Required Preparation
Activity 3:
- Gather materials from:
- Check It Off, Stage 1
- Find the Value of Expressions, Stage 1
- Bingo, Stages 1–3
- Shake and Spill, Stages 1–3
CCSS Standards
Addressing
Lesson Timeline
| Warm-up | 10 min |
| Activity 1 | 10 min |
| Activity 2 | 10 min |
| Activity 3 | 20 min |
| Lesson Synthesis | 10 min |
| Cool-down | 0 min |
Teacher Reflection Questions
Identify who has been sharing their ideas in class lately. Make a note of students whose ideas have not been shared and look for an opportunity for them to share their thinking in tomorrow’s lesson.