Illustrative Mathematics
Level A
Unit: Numbers and Operations and Algebraic Thinking
Key Lesson 1.3.16 Add Three Numbers
Lesson topic: Addition of three numbers
Instructor Materials
- Teacher Guide
- Slides
- CCRS Standard: 1.OA.3, 1.OA.6, 1.OA.7
- Learning goal: Make sense of equations with addition expressions on both sides of the equal sign (For example, 3+6+7=10+6). Use the associative property to make a ten when adding three numbers.
- 1.3 Assessment and Practice Problems
Student Materials
Related Lessons
There are no related lessons for this key lesson.
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