Lesson | Loading...

Unit 3, Lesson 6

Multiply Fractions

Grade 5

Warm-up

Which 3 go together?

Diagram. Square, length and width, 1. Partitioned into 4 rows of 3 of the same sized rectangles. 6 rectangles shaded. — A

Diagram. Square, length and width, 1. Partitioned into 4 rows of 3 of the same sized rectangles. 3 rectangles shaded. — B

Diagram. Square, length and width, 1. Partitioned into 7 rows of 4 of the same sized rectangles. 6 rectangles shaded. — C

Diagram. Two squares. Each square, length and width, 1. Each square partitioned into 4 rows of 3 of the same sized rectangles. 3 rectangles shaded in each square. — D

Activity 1

How does each expression represent the area of the shaded region? Explain or show your reasoning.

Square, length and width, 1. Partitioned into 6 rows of 5 of the same size rectangles. 8 rectangles shaded.

Activity 2

Complete the table.

diagram	multiplication expression	shaded area (square units)

What patterns do you notice in the table?
How does the expression represent the last diagram in the table? Explain or show your reasoning.