February 21, 2007
The bot has a light sensor facing the dot on the wheel.
VOB 4th grade programmed using Investigator.
Then ran the program and uploaded the data.
They got figure the distance traveled by multiplying the wheel circumference by the number of rotations.
With the light sensor down, it is easy to see by the graph where the bot went over dark lines.
Next week they will build a bot to bring back rocks.
