Referenced from lesson Defining Values
Open the Defining Values Starter File and click run.
1 What do you notice?
2 What do you wonder?
Look at the expressions listed below. Think about what you expect each of them to produce. Then, test them out one at a time in the Interactions Area.
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x
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(+ x 5)
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(- y 9)
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(* x y)
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z
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t
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gold-star
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my-name
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swamp
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5pi
3 What have you learned about defining values?
4 Define at least 2 more variables in the definitions area, click run and test them out. Once you know they’re working, record the code you used below.
These materials were developed partly through support of the National Science Foundation,
(awards 1042210, 1535276, 1648684, and 1738598). 
Bootstrap:Algebra by the Bootstrap Community is licensed under a Creative Commons 4.0 Unported License. This license does not grant permission to run training or professional development. Offering training or professional development with materials substantially derived from Bootstrap must be approved in writing by a Bootstrap Director. Permissions beyond the scope of this license, such as to run training, may be available by contacting contact@BootstrapWorld.org.