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K-5 Grade 5 Unit 3 Lesson 7

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Lesson 7

Warm-up Activity 1 Activity 2

Unit 3, Lesson 7

Generalize Fraction Multiplication

Grade 5

Warm-up

What do you notice? What do you wonder?

Square, length and width, 1. Partitioned into 4 rows of 5 of the same size rectangles. 8 rectangles shaded.

Rectangle. Length, 4 fifths unit. Width, 1 half unit.

Activity 1

Find the value of each product. Draw a diagram if it is helpful.
How did you decide whether or not to draw a diagram? How did the diagrams help you find the products?
Diego drew this diagram to represent the product . How can the diagram help Diego find the value of ? Explain or show your reasoning.

Activity 2

Find the value that makes each equation true. Draw a diagram if it is helpful.