Guided notes to introduce students to gears and then experimenting with combinations of different sized gears. You will need different sized gears, measuring tape or rulers (or tape measuring out 2 feet), and timers.
I suggest completing this activity in partners and with a decent amount of space (not on tables!) as the robot will move much faster than students expect. Make sure one student is ready to "catch" the robot to prevent it from running into walls.
After completing this activity, we