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K-5 Grade 1 Unit 2 Lesson 17

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•K-5 Math 6-8 Math 9-12 Math

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Kindergarten •Grade 1 Grade 2 Grade 3 Grade 4 Grade 5

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Lesson 1 Lesson 2 Lesson 3 Lesson 4 Lesson 5 Lesson 6 Lesson 7 Lesson 8 Lesson 9 Lesson 10 Lesson 11 Lesson 12 Lesson 13 Lesson 14 Lesson 15 Lesson 16 •Lesson 17 Lesson 18 Lesson 19 Lesson 20 Lesson 21 Lesson 22 Lesson 23

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9-12

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Lesson 17

Warm-up Activity 1 Activity 2

Unit 2, Lesson 17

Equations with Unknowns

Grade 1

Warm-up

What do you notice?
What do you wonder?

2 sports bags. 4 basketballs in one bag. Other bag, zipped closed.

Activity 1

None

Activity 2

9 students play bingo.
3 students use blue chips to cover their boards.
The other students use yellow chips.
How many students use yellow chips?

Explain how each equation matches the story problem.
Show your thinking using drawings, numbers, or words.

Clare writes .
Jada writes .