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Recommended for: Grades 3-6

Resource: Raising the Bar

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Media Type:
QuickTime Video

Length: 3m 26s
Size: 9.3 MB

In this video segment from Cyberchase, Harry and Bianca have new jobs at a movie theater concession stand. They compete with each other to see who can sell the most snacks, and they report their sales using bar graphs. When their graphs are compared, it appears that Harry has sold more, but Bianca is not so sure, so she takes a closer look at the scale of each graph.

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Transcript (Rich Text Format Document)

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Teachers' Domain, Raising the Bar, published August 25, 2008, retrieved on ,
http://www.teachersdomain.org/resource/vtl07.math.data.rep.raisingbar/

Frame and Focus
Follow Up
Connections
Standards

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Here are some Frame, Focus and Follow-up suggestions for using this video in a math lesson.

What is Frame, Focus and Follow-up?

Frame: Data is information. There are many ways to keep track of data and communicate it to other people. For example, we can learn about statistics from a baseball game by reading about them in a paragraph or by viewing the data in a table or a bar graph. What kind of information have you seen displayed in bar graphs? What are the elements or parts of a bar graph?

Focus: As you watch, look carefully at Harry and Bianca’s bar graphs. It looks like Harry has sold more than Bianca has. Consider why, at first glance, this seems to be true. After Bianca suggests that everyone look more closely at the scale of the bar graph, consider why and how the scale makes a difference in determining who has sold the most.