Unit 1

Questions About Data

Lesson 13

Adding, Subtracting, and Working with Data

Expressions and Equations

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Let’s ask and answer questions about data.

Unit 1 ● Lesson 13

Learning

Goal

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Plus or Minus 1 or 2

Unit 1 ● Lesson 13 ● Warm-up

Find the value of each expression mentally.

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• 7 + 1

• 7 + 2

• 9 – 1

• 9 – 2

Number Talk

Slides are CC BY NC Kendall Hunt Publishing. Curriculum excerpts are CC BY Illustrative Mathematics.

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Can You Answer It?

Unit 1 ● Lesson 13 ● Activity 1

Elena asked her classmates, “What is your favorite subject in school?”

She showed their responses below.

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Slides are CC BY NC Kendall Hunt Publishing. Curriculum excerpts are CC BY Illustrative Mathematics.

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Can You Answer It?

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Unit 1 ● Lesson 13 ● Activity 1

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How many students said math is their favorite subject?

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How many students said writing is their favorite subject?

Who said they like reading best?

How many students chose reading or science?

Decide whether each question can be answered using the data representation. Be ready to explain why.

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Slides are CC BY NC Kendall Hunt Publishing. Curriculum excerpts are CC BY Illustrative Mathematics.

Can You Answer It?

Unit 1 ● Lesson 13 ● Activity 1

• What question did you find that cannot be answered? Why can’t it be answered?
• How can we change the question so that it can be answered using this representation?

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Activity Synthesis

Slides are CC BY NC Kendall Hunt Publishing. Curriculum excerpts are CC BY Illustrative Mathematics.

Ask Questions

Unit 1 ● Lesson 13 ● Activity 2

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• Group A will take the survey first.
• Group B will record the data in your book

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Launch

Slides are CC BY NC Kendall Hunt Publishing. Curriculum excerpts are CC BY Illustrative Mathematics.

Ask Questions

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Unit 1 ● Lesson 13 ● Activity 2

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Now Group B is going to take the survey and Group A will record the data.

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Launch

Slides are CC BY NC Kendall Hunt Publishing. Curriculum excerpts are CC BY Illustrative Mathematics.

Ask Questions

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Unit 1 ● Lesson 13 ● Activity 2

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Now, think of as many questions as you can that can be answered using your data representation.

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Slides are CC BY NC Kendall Hunt Publishing. Curriculum excerpts are CC BY Illustrative Mathematics.

Ask Questions

Unit 1 ● Lesson 13 ● Activity 2

Now we will ask our partner some of these questions.

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Activity Synthesis

Slides are CC BY NC Kendall Hunt Publishing. Curriculum excerpts are CC BY Illustrative Mathematics.

Answer Questions

Unit 1 ● Lesson 13 ● Activity 3

• The person who goes first shows their data representation to their partner and asks a question about the data.
• Their partner answers the question and explains how they found the answer.
• Repeat with another question, then switch roles.
• If your partner asks you a question that can’t be answered using the data representation, explain why it can’t be answered.

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Slides are CC BY NC Kendall Hunt Publishing. Curriculum excerpts are CC BY Illustrative Mathematics.

Answer Questions

Unit 1 ● Lesson 13 ● Activity 3

• Use your data representation to answer the question.
• Why do we have two different answers to the questions?

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Activity Synthesis

Slides are CC BY NC Kendall Hunt Publishing. Curriculum excerpts are CC BY Illustrative Mathematics.

Questions About Data

Unit 1 ● Lesson 13

Today we asked questions about our data.

What do you need to think about when asking questions, to be sure they can be answered using your data representation?

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Lesson Synthesis

Slides are CC BY NC Kendall Hunt Publishing. Curriculum excerpts are CC BY Illustrative Mathematics.

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Slides are CC BY NC Kendall Hunt Publishing. Curriculum excerpts are CC BY Illustrative Mathematics.