Lesson 6 Choose a Scale
Let’s choose a scale for our bar graph.
Warm-up Notice and Wonder: Bar Graph Scales
What do you notice? What do you wonder?
Activity 1 Represent Pattern Blocks
Here is a collection of pattern blocks.
Mai, Noah, and Priya want to make a bar graph to represent the number of triangles, squares, trapezoids, and hexagons in the collection.
Mai says the scale of the bar graph should be 2.
Noah says the scale of the bar graph should be 5.
Priya says the scale of the bar graph should be 10.
Who do you agree with? Explain your reasoning.
Use the scale that you chose to create a scaled bar graph to represent the collection of pattern blocks.
Activity 2 Represent More Data in a Scaled Bar Graph
All the third-grade students at school were asked, “What is your favorite time of the year?” Their responses are shown in this table:
favorite time of the year
number of students
Use the data from this table to create a scaled bar graph.
The table shows the number of books some students have at home.
Use the information from the table to create a scaled bar graph.