Illustrative Mathematics
Level A
Unit: Numbers and Operations and Algebraic Thinking
Key Lesson 1.5.10 Add Tens and Tens, Ones and Ones
Lesson topic: Addition of two-digit numbers
Instructor Materials
- Teacher Guide
- Slides
- Number Puzzles Addition Stage 4 Gameboard resource
- Level A Centers: Number Puzzles stage 4
- CCRS Standard: 1.NBT.4, 1.OA.8
- Learning goal: Add two-digit numbers by adding tens and tens and ones and ones.
- 1.5 Assessment and Practice Problems
Student Materials
Related Lessons
Preparation
If students need additional lessons before this key lesson, use these supplemental lessons.
Review and Extend
Use these supplemental lessons if needed after teaching this key lesson.
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