Illustrative Mathematics
Level A
Unit: Numbers and Operations and Algebraic Thinking
Lesson 1.3.26 What’s the Story?
Lesson topic: Addition and subtraction in word problems
Instructor Materials
- Teacher Guide
- Slides
- CCRS Standard: 1.OA.4, 1.OA.6
- Learning goal: Solve addition and subtraction story problems with unknowns in all positions.
- 1.3 Assessment and Practice Problems
Student Materials
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