Grade 3 Unit 4
Lesson 11: Multiplication Strategies on Ungridded Rectangles
CC BY 2021 Illustrative Mathematics®
Grade 3 Unit 4
Lesson 11: Multiplication Strategies on Ungridded Rectangles
CC BY 2021 Illustrative Mathematics®
Which one doesn’t belong?
For each rectangle:
Mark or shade each rectangle to show a strategy for finding its area.
Write one or more expressions that can represent how you find the area.
Mark or shade the rectangle to show a strategy for finding its area.
Write one or more expressions that can represent how you find the area.
Mark or shade the rectangle to show a strategy for finding its area.
Your teacher will give you a set of cards with expressions that represent areas of rectangles.
Sort the expressions into groups so that the expressions in each group can represent the area of the same rectangle. Be prepared to explain your reasoning.
You can draw rectangles if you find them helpful.
Explain your reasoning for sorting the cards.
Mark or shade this rectangle to show a strategy for finding its area.
Write one or more expressions that represent how you find the area.
Write one or more expressions that can represent how you find the area.
Mark or shade the rectangle to show a strategy for finding its area.
Write one or more expressions that can represent how you find the area.