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Unit 1: Values and Variables

Programs work with information. You will choose a useful data type, save a value under a clear name, change it, and inspect the result while the program runs.

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What This Unit Covers

Tell numbers, text, and Boolean values apart.
Create, set, read, and change variables.
Build expressions and trace how their results change.
Review the sequence and goals here, then resume at your first incomplete lesson.

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