Lesson 3 Scaled Picture Graphs

    • Let’s explore scaled picture graphs.

Warm-up Number Talk: Addition

Find the value of each expression mentally.

Activity 1 So Many Responses

  1. A group of students were asked, “What is your favorite sport?” Their responses are shown in this picture graph:

    Picture Graph. Favorite Sports. Key: each smiley face represents 1 student. football, 25 smiley faces. soccer, 15 smiley faces. basketball, 20 smiley faces. tennis, 5 smiley faces.

    How many students are represented in the graph?

  2. Their responses are also shown in this picture graph:

    Picture Graph. Favorite Sports. Key: each smiley face represents 5 students. football, 5 smiley faces. soccer, 3 smiley faces. basketball, 4 smiley faces. tennis, 1 smiley face.

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

Activity 2 Questions about Scaled Picture Graphs

Problem 1

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:

Picture Graph. Flowers I saw on the way home. Key: Flower represents 5 flowers. Rose, 2 flowers. Tulips, 1 flower. Daisies, 5 flowers. Violets, 3 flowers.

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

    roses

    tulips

    daisies

    violets

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

Problem 2

A group of students were asked, “What is your favorite type of book?” Their responses are shown in this picture graph:

Picture Graph. Favorite Type of Books. Key: Each smiley face represents two students. Joke books, 4 smiley faces. Comic books, 1 smiley face. Science books, 4 smiley faces. Mystery books, 3 smiley faces.

  1. How many students liked each type of book? How do you know?

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

Practice Problem

Problem 1

This picture graph records types of balls in the gym. Use the graph to answer the questions.

Picture Graph. Balls in the Gym. Key: each circle represents 2 balls. baseball, 2 circles. basketball, 6 circles. football, 3 circles. volleyball, 4 circles.  

  1. How many basketballs are in the gym?

  2. How many more basketballs are there than footballs?

  3. Write one other question that you could answer about the balls in the gym using the graph.