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Recommended for: Grades 3-6

Resource: The Power of the Whole Picture

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Media Type:
QuickTime Video

Length: 1m 35s
Size: 4.4 MB

In this video segment from Cyberchase, the CyberSquad explains to Ms. Fileshare how Hacker deceived her by using a different number scale on his bar graph. They explain to her that comparing two graphs with different scales is not an accurate comparison. This segment is the third of three segments. Check out “Inventing Bar Graphs” to see how the CyberSquad created their bar graph. Then watch “Attention to Scaling” to see how they discover the difference between Hacker's bar graph and the one they created.

Alternate Media Available:

Transcript (Rich Text Format Document)

View Citation

Teachers' Domain, The Power of the Whole Picture, published October 8, 2008, retrieved on ,
http://www.teachersdomain.org/resource/vtl07.math.data.rep.powrwholep/

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: When we look at a bar graph and see numbers alongside the lines on the graph, we are looking at the number scale. If you were going to make a bar graph of the number of hours you watched TV every day for one week, what kind of number scale might you use? What would be the lowest number on the scale? What would be the highest?

Focus: As you watch this video segment, decide why Hacker chose to use large numbers on his number scale. What was it about the CyberSquad’s graph and explanation that finally convinced Ms. Fileshare that she was being tricked by Hacker?