Your first choice of when you would like to participate: Note: We will do our best to accommodate your first choice, but will be constrained by the number of schools choosing to participate (the STEM Explorer team provides technical support for this project as well as 3D printing). We can accommodate you if you absolutely must have a certain time, but this could reduce the availability of technical support, or cause your 3D printing to be delayed. Another note: This project works best when students have already learned the fundamental concepts of motion, force, Newton's Laws, and energy.