Can You Make A Ball Go 2 Different Distances?

First graders did their final activity for our Force and Motion unit last week.  They were challenged with the question "how can you make a ball go two different distances?" and had to come up with a plan for how to do just that.  Students used all of the knowledge that they gained throughout our study of force and motion, including concepts such as pushes and pulls, gravity, slopes of a ramp, and friction. After writing up their plan, they made their predictions, and then actually carried it out to see if their plan would in fact work. Wow!  What amazing scientists!!