We discussed that the center of gravity of your Safe Racer car should be about 1 to 1.5" in front of the rear axle. I explained that by having the center of gravity closer to the rear of the car would ensure that a majority of the weight was pushing down the ramp as long as possible.
Today, we broke up into two groups. Both groups explored potential and kinetic energy. However, one group did an activity with me, while the other group did an activity with Mr. Mauer. Next week, we will repeat this week's demonstrations with the groups flip flopping.