Overview

This unplugged lesson explores the underlying behavior of variables. Using notecards and string to simulate variables within a program, the class implements a few short programs. Once comfortable with this syntax, the class uses the same process with sprite properties, tracking a sprite's progress across the screen.

Vocab

• Expression - Any valid unit of code that resolves to a value.
• Variable - A label for a piece of information used in a program.

Resources

• Variables Unplugged - Activity Guide (copy as MS Word, Google Doc)

• Variables Unplugged Board - Manipulative (copy as MS Word, Google Doc)