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Unit 2 - Lesson 11 - Grade 3: Illustrative Mathematics

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Hyɛ no nsow a efi ɔkyerɛwfo no hɔ:

Grade 3 Unit 2

Lesson 11: Area and the Multiplication Table

CC BY 2021 Illustrative Mathematics®

Grade 3 Unit 2

Lesson 11: Area and the Multiplication Table

CC BY 2021 Illustrative Mathematics®

Lesson: Area and the Multiplication Table

How Many Do You See: Arrays that Grow (Warm Up)

Area and the Multiplication Table

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Products in the Multiplication Table

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Cool Down: What’s the Product?
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1.

How many do you see?

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2.

How do you see them?

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3.

What do you notice?

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4.

What do you wonder?

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5.

Use the blank table to create your own rectangle.

Start from the top left corner. Record the product that the rectangle represents. Be prepared to explain your reasoning.

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6.

Use the following table to create a rectangle with an area of 24 square units. Start from the top left corner. Record the product that the rectangle represents. Be prepared to explain your reasoning.

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7.

What do you notice?

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8.

What do you wonder?

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9.

Find as many other products in the table as you can. You may want to start with rows and columns that show products of 2, 5, and 10.

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10.

What patterns do you see in the row and column that show products of 5?

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11.

Write some equations that show one of the patterns that you see in the multiplication table. Explain or show your reasoning.

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12.

What is the missing product? Explain your reasoning.