Grade 2 Teacher Guide
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Learning Progression
Unit Overview
Lesson 1
Lesson 2
Lesson 3
Lesson 4
Lesson 5
Lesson 6
Lesson 7
Lesson 8
Lesson 9
Have 200 Charts, base-ten pieces, and desk number lines readily available.
Possible strategies:
I thought about a number line. 67 − 37 = 30. I need to subtract 1 more. So, 67 − 38 = 29.
Solve the problem 67 − 38 two ways.