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Unit 1

Scaled Picture Graphs

Lesson 3

Introducing Multiplication

Expressions and Equations

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Let’s explore scaled picture graphs.

Unit 1 ● Lesson 3

Learning

Goal

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Addition

Unit 1 ● Lesson 3 ● Warm-up

Find the value of each expression mentally.

  • 50 + 10
  • 50 + 12
  • 60 + 13
  • 65 + 13

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Number Talk

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

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So Many Responses

Unit 1 ● Lesson 3 ● Activity 1

  • What is your favorite sport or activity outside of school?

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What do you notice? What do you wonder?

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Launch

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

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So Many Responses

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Unit 1 ● Lesson 3 ● Activity 1

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How many students are represented in the graph?

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

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So Many Responses

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Unit 1 ● Lesson 3 ● Activity 1

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  • Their responses are also shown in this picture graph:

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How is counting the total number of students in this graph different from counting the total number of students in the first graph?

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

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So Many Responses

Unit 1 ● Lesson 3 ● Activity 1

  • In a graph where there’s a lot of data we can adjust the scale so each picture represents more than 1 object.
  • When each picture represents something other than 1, we say that it’s a scaled picture graph.
  • The key tells us that in this graph, each smiley face represents 5 students.

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Activity Synthesis

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

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Questions about Scaled Picture Graph

Unit 1 ● Lesson 3 ● Activity 2

What are some strategies you could use to read the graphs?

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Launch

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

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Questions about Scaled Picture Graph

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Unit 1 ● Lesson 3 ● Activity 2

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  • Andre collected data to see how many of each type of flower he saw on the way home. The data is shown in this picture graph:

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  • How many of each type of flower did Andre see on the way home?

roses _____ tulips _____ daisies _____ violets _____

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  • Write 2 questions that you could ask about the flowers Andre saw on his way home.

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Write 2 questions that you could ask about the flowers Andre saw on his way home.

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

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Questions about Scaled Picture Graph

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Unit 1 ● Lesson 3 ● Activity 2

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  • A group of students were asked, “What is your favorite type of book?” Their responses are shown in the picture graph:
  • How many students liked each type of book? How do you know?

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  • Write 2 questions that you could ask about students’ favorite types of books based on the graph.

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

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So Many Responses

Unit 1 ● Lesson 3 ● Activity 2

  • How did you use the scale to answer the questions?
  • How did you know your question could be answered with the graph?
  • What questions cannot be answered by this graph?

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Activity Synthesis

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

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Scaled Picture Graphs

Unit 1 ● Lesson 3

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  • Today we learned about scaled picture graphs. Why would we make a scaled picture graph?
  • How is reading scaled picture graphs different from reading graphs that have a scale of 1?

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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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Birds in the Park

Unit 1 ● Lesson 3

Jada collected data to see how many of each type of bird she saw on her way home. The data is shown in this picture graph:

Based on the data on the graph:

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  • How many sparrows did Jada see on the way home?

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  • Write one question you could ask about the birds Jada saw on the way home.

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Cool-down

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.