Headline Story
Grids and Graphs, #9
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Introduction
Encourage students to consider what Winn’s spinner might look like, and whether such a spinner is actually possible.
Headline Story
Winn plans to design a spinner with 4 different color sections. She wants it to land on red 
the time, on blue 
of the time, on green 
of the time, and on yellow 
of the time.
Possible student responses
- It’s impossible to design a spinner like that. The fractions add up to more than 1.
- It would work, for example, if you changed the fraction of the time that the spinner lands on blue to . Then the fractions would add to 1: + + + .
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