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Recommended for: Grades 4-8

Resource: The Right Amount of Cupcake Mix

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Media Type:
QuickTime Video

Length: 3m 24s
Size: 9.5 MB

In this video segment from Cyberchase, Bianca helps a friend get ready for a school bake sale. They are making cupcakes but when they realize that the recipe only makes a dozen cupcakes, decide it is not enough. They want to make double that amount, so they decide to double the recipe, which includes doubling a fraction that results in an improper fraction.

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Transcript (Rich Text Format Document)

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Teachers' Domain, The Right Amount of Cupcake Mix, published August 26, 2008, retrieved on ,
http://www.teachersdomain.org/resource/vtl07.math.number.fra.cupcakemix/

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: How do you double an amount? Can you double a fraction? How would you double ½? What if you doubled a fraction like ¾? Would you have a number greater than 1? How many different ways could you write that?

Focus: In this video segment, Bianca and her friend have to double 2/3 of a bar of chocolate. Watch how Bianca physically does this with the chocolate. Notice the result when they double two-thirds. What two ways do the girls describe this amount?