Get ready to have fun learning about kinetic and potential energy. The dive into the topic of friction. This is an amazing experience for the students. They design hovercrafts that glide across the school floors. Who can make their own hovercrafts and work through the design process of prototype, test, refine, and share.I had my kids make their own rubric before the lesson on rubistar. They do a great job and it motivates them to be responsible for each evaluation task. Best of luck and have a great time.