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Recommended for: Grades 5-8

Resource: Staircases of Shangri-La

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Media Type:
QuickTime Video

Length: 2m 13s
Size: 6.1 MB

In this video segment from Cyberchase, Hacker and the CyberSquad are racing each other to try to reach the Good Vibration, which is set on top of a tall monument. Two sets of stairs appear and Hacker chooses the one with larger steps. The CyberSquad must use the stairs with smaller steps, so they are afraid they will never catch up to Hacker.

Alternate Media Available:

Transcript (Rich Text Format Document)

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Teachers' Domain, Staircases of Shangri-La, published August 22, 2008, retrieved on ,
http://www.teachersdomain.org/resource/vtl07.math.algebra.pat.stairshang/

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: Looking at the rate at which something increases can be interesting. If there are two jobs and the first job pays a dollar a day for thirty days, and the other one pays one cent on the first day and then doubles each day for thirty days, which job pays more over the course of 30 days?

Focus: As you watch, look carefully at the two sets of steps. Digit says, “Our steps are so much smaller, we’ll never catch up to him.” Look for a possible pattern in the way both set of steps increase, and decide whether or not you agree with Digit.