Illustrative Mathematics
Level A
Unit: Numbers and Operations and Algebraic Thinking
Lesson 1.4.12 Mentally Add and Subtract Tens
Lesson topic: Addition and subtraction of tens
Instructor Materials
- Teacher Guide
- Slides
- Write the Number Stage 2 Gameboard resource
- Level A Centers: Write Numbers stage 2
- CCRS Standard: 1.NBT.5, 1.OA.6
- Learning goal: Mentally find 10 more or 10 less than a number.
- 1.4 Assessment and Practice Problems
Student Materials
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