Red Light, Green Light

ACTIVITY HEADER

 

 

 

Name of Activity Red Light, Green Light
Author STOMP
Keywords NXT, cars, robotics, sensors
Subject NXTs
Grade Level 3, 4, 5, 6
Time 1 Hour Total
Brief Description Students will program cars to play a game of “Red Light, Green Light” based on sound. Robots will race each other, but have to stop at hearing a clap, go on the next clap, etc.
Lesson Objectives: Learn the use of the sound sensor.
Materials Needed: NXT Kit, laptop
Preparation and Set Up: Have a defined start and end line for the race.
Necessary Background Have a functioning car to be programmed, knowledge of programming loops.
Procedure 1. Brainstorm the programming strategy. 2. Program the cars to alternately stop and go on hearing a noise. 3. Refine the decibel threshold of the sound sensor so it is not too sensitive or overly sensitive. 4. Have the cars race each other, disqualifying cars if they don’t follow the rules.
Extensions: This could be modified to use another sensor as the “light.”
Umbrella Unit/Curriculum (if applicable) NXT Robotics

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