Mathematics: Applications & Concepts, Course 2
Mathematics: Applications & Concepts, Course 2 Glencoe Online
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Group Activity Cards

Numbers
and Operations


Use groups of 2.
Materials: Metric rulers
Teacher, I Shrunk the Students  

Suppose that you and your partner are in charge of building the props for a play about mathematics students who have accidentally been shrunk. The designer of the production has determined that the ratio of real-world objects to props should be 3:10.

Props must be made for the following real-world objects.

  • your math book
  • a ruler
  • an index card
Determine the length and width in centimeters of each of these three props by using proportions.

Figure

 

 
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Mathematics: Applications & Concepts, Course 2