Using the directions in the RoboAlien set, students made a Measure Bot
with the RoboAlien set and the Team Challenge set.

We measured the distance around the wheel and counted the number of rotations using Investigator

to be able to measure the distance from pink to pink in the hallway.

 

The Measure Bot and the Windmill at the LEGO City both use a light sensor as a rotation sensor.

We can use the graph from SENSORSCITY to see how often the windmill goes around.