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Recommended for: Grades 3-6

Resource: A Simple Balance

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Media Type:
QuickTime Video

Length: 2m 33s
Size: 7.3 MB

In this video segment from Cyberchase, the CyberSquad is attempting to save Sensible Flats from disaster. In order to gain access to the machine they need, the CyberSquad must unlock it by figuring out the correct number code. In order to do this they have to balance a scale using two weights.

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Transcript (Rich Text Format Document)

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Teachers' Domain, A Simple Balance, published August 25, 2008, retrieved on ,
http://www.teachersdomain.org/resource/vtl07.math.algebra.equ.simplebala/

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: Have you ever seen a simple balance? If you put a one-pound weight on one side and a two-pound weight on the other side, what would happen? What would happen if you put a three-pound weight on one side and a three-pound weight on the other side? How would you describe that using numbers and symbols?

Focus: In this segment, the Cybersquad has to get a scale to balance completely. How do they manage to do this? What does Jackie say an “equals” sign really means?