Unit 2 - Lesson 14 - Grade 3: Illustrative Mathematics

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6 questions
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Grade 3 Unit 2
Lesson 14: Find the Area of Figures with Missing Sides
CC BY 2021 Illustrative MathematicsĀ®
Grade 3 Unit 2
Lesson 14: Find the Area of Figures with Missing Sides
CC BY 2021 Illustrative MathematicsĀ®
Lesson: Find the Area of Figures with Missing Sides

Notice and Wonder: Mystery Sides (Warm Up)

1

What do you notice?

1

What do you wonder?

The Mystery Side

1

Tyler says that the missing side length is 5 meters because it looks longer than the sides that are 4 meters long.


Do you agree or disagree? Be prepared to explain your reasoning.

Practice with Mystery Sides

1

Find the area of the figure. Explain or show your reasoning.

1

Find the area of the figure. Explain or show your reasoning.

Cool Down: Mystery Side Area
1

Find the area of the figure. Explain or show your reasoning.