Lesson 17
Center Day 3
Lesson Purpose
The purpose of this lesson is for students to work with shapes and addition and subtraction.
Lesson Narrative
In the first activity, students learn stage 2 of the Which One center, which was first introduced in kindergarten. In this new stage, students ask yes or no questions about shapes in order to identify the shape their partner chose. In the second activity, students choose from previously introduced centers focused on shapes or addition and subtraction.
Learning Goals
Teacher Facing
- Add within 100.
- Describe two-dimensional and three-dimensional shapes.
- Subtract within 10.
Student Facing
- Let’s work with shapes and numbers.
Required Materials
Materials to Gather
Materials to Copy
- Which One Stage 2 Gameboard
Required Preparation
Activity 2:
Gather materials from previous centers:
- Can You Draw It, Stage 1
- Match Mine, Stage 2
- Capture Squares, Stages 1 and 2
- Target Numbers, Stages 1-3
Lesson Timeline
| Warm-up | 10 min |
| Activity 1 | 20 min |
| Activity 2 | 20 min |
| Lesson Synthesis | 10 min |
Teacher Reflection Questions
As students worked together today, where did you see evidence of the mathematical community established over the course of the school year?