Unit 4 - Lesson 14 - Grade 3: Illustrative Mathematics - Formative Library | Library

Instructions

Grade 3 Unit 4
Lesson 14: Ways to Represent Multiplication of Teen Numbers
CC BY 2021 Illustrative Mathematics®

Notice and Wonder: Seeing Groups (Warm Up)

1

What do you notice?

1

What do you wonder?

A Factor Greater than Ten

1

Tyler says he can use base-ten blocks to find the value of 7 x 13 because he knows 7 x 10 and 7 x 3. He says this diagram proves his thinking.

Do you agree or disagree? Explain your reasoning.

1

Use Tyler’s method to find the value of 3 x 14. Explain or show your reasoning.

Ways to Represent

Andre, Clare, and Diego represented the same expression. Their representations are shown below.

1

Where do you see the factors in each diagram?

1

Where do you see the product in each diagram?

1

Unit 4 - Lesson 14 - Grade 3: Illustrative Mathematics

Unit 4 - Lesson 14 - Grade 3: Illustrative Mathematics

Notice and Wonder: Seeing Groups (Warm Up)

What do you notice?

What do you wonder?

A Factor Greater than Ten

Tyler says he can use base-ten blocks to find the value of 7 x 13 because he knows 7 x 10 and 7 x 3. He says this diagram proves his thinking.

Do you agree or disagree? Explain your reasoning.

Use Tyler’s method to find the value of 3 x 14. Explain or show your reasoning.

Ways to Represent

Where do you see the factors in each diagram?

Where do you see the product in each diagram?

Find the value of 5 x 15 and explain how it’s represented in the diagram.

Notice and Wonder: Seeing Groups (Warm Up)

What do you notice?

What do you wonder?

A Factor Greater than Ten

Tyler says he can use base-ten blocks to find the value of 7 x 13 because he knows 7 x 10 and 7 x 3. He says this diagram proves his thinking.

Do you agree or disagree? Explain your reasoning.

Use Tyler’s method to find the value of 3 x 14. Explain or show your reasoning.

Ways to Represent

Where do you see the factors in each diagram?

Where do you see the product in each diagram?

Find the value of 5 x 15 and explain how it’s represented in the diagram.

Unit 4 - Lesson 14 - Grade 3: Illustrative Mathematics

Unit 4 - Lesson 14 - Grade 3: Illustrative Mathematics

Notice and Wonder: Seeing Groups (Warm Up)

What do you notice?

What do you wonder?

A Factor Greater than Ten

Tyler says he can use base-ten blocks to find the value of 7 x 13 because he knows 7 x 10 and 7 x 3. He says this diagram proves his thinking.Do you agree or disagree? Explain your reasoning.

Use Tyler’s method to find the value of 3 x 14. Explain or show your reasoning.

Ways to Represent

Where do you see the factors in each diagram?

Where do you see the product in each diagram?

Find the value of 5 x 15 and explain how it’s represented in the diagram.

Notice and Wonder: Seeing Groups (Warm Up)

What do you notice?

What do you wonder?

A Factor Greater than Ten

Tyler says he can use base-ten blocks to find the value of 7 x 13 because he knows 7 x 10 and 7 x 3. He says this diagram proves his thinking.Do you agree or disagree? Explain your reasoning.

Use Tyler’s method to find the value of 3 x 14. Explain or show your reasoning.

Ways to Represent

Where do you see the factors in each diagram?

Where do you see the product in each diagram?

Find the value of 5 x 15 and explain how it’s represented in the diagram.

Tyler says he can use base-ten blocks to find the value of 7 x 13 because he knows 7 x 10 and 7 x 3. He says this diagram proves his thinking.

Do you agree or disagree? Explain your reasoning.

Tyler says he can use base-ten blocks to find the value of 7 x 13 because he knows 7 x 10 and 7 x 3. He says this diagram proves his thinking.

Do you agree or disagree? Explain your reasoning.