Lesson 4
Center Day 1
Lesson Purpose
The purpose of this lesson is for students to practice adding within 100 without composing a ten.
Lesson Narrative
In the first activity, students learn stage 3 of the Number Puzzles center. In this new stage, students use digit cards to make addition equations within 100 without composing a ten. In the second activity, students choose from center activities that focus on adding within 100.
- MLR8
Learning Goals
Teacher Facing
- Add within 100, without composing a ten.
Student Facing
- Let’s add within 100.
Required Materials
Materials to Gather
Materials to Copy
- Number Puzzles Addition and Subtraction Stage 3 Gameboard
Required Preparation
Activity 1:
- Each group of 2 needs a set of digit cards from the previous center, Number Puzzles.
Activity 2:
- Gather materials from previous centers:
- Number Puzzles, Stages 1-3
- Five in a Row, Stages 1-5
- Greatest of Them All, Stage 1
Lesson Timeline
| Warm-up | 10 min |
| Activity 1 | 15 min |
| Activity 2 | 25 min |
| Lesson Synthesis | 10 min |
Teacher Reflection Questions
How are students working together during center time? Are all students getting the opportunity to participate in the mathematics?