Illustrative Mathematics
Level A
Unit: Numbers and Operations and Algebraic Thinking
Key Lesson 1.3.21 Addition Centers (2 or 3 Addends)
Lesson topic: Addition with 2 or 3 addends
Instructor Materials
- Teacher Guide
- Slides
- How Close? Stage 1 Recording Sheet resource
- Five in a Row Addition and Subtraction Stage 3 Gameboard resource
- Level A Centers: How Close? stage 1, Five in a Row: Addition and Subtraction stage 3
- CCRS Standard: 1.OA.5, 1.OA.6
- Learning goal: Students add two and three numbers within 20. Students write equations with three addends.
- 1.3 Assessment and Practice Problems
Student Materials
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