Lesson: "Variables"

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Overview: 
The goal of this lesson is to introduce the concept of a variable in the Lego MINDSTORMS NXT-G program. Students will work through the "Variables" video lesson on the "Advanced" page of the "NXT Video Trainer 2.0" product from Carnegie Mellon University's Robotics Academy.
Objectives: 

Students will be able to:

1. Describe the purpose of using variables 

2. Explain what it means to write and then read a variable

3. Write an NXT-G program for a robot which writes and reads a variable

4. Write an NXT-G program for a robot incorporating mutiple variables

5. Write an NXT-G program for a robot which displays a variable on the the NXT screen

6. Explain the role of each parameter in a Variable Block

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