velocity using rotation sensor

Record rotation sensor data and get a graph for a diagonal line (degrees vs time).  Give the students a program for the robot to go straight.  Explain the program including the number of degrees and the power level for the motors.  Tell the student to modify the program to create a data set with a steeper line and a shallower line. Have them explain how they changed the program.

Ask them if there is any way to modify the program to further increase the steepness of the line.  Ask them if they can modify their robot to further increase the steepness of the line.