Adjust a ramp's height or angle across several attempts to make a ball land inside a target.
Engineers use pushes and pulls on purpose to solve real problems. Today your problem is this: make a ball roll down a ramp and land inside a target, like a bowl or a box.
You probably will not get it perfect on the first try, and that is expected. Change one thing, like the ramp's height, and try again.
Mastery looks like: They adjust the ramp across multiple attempts to land a ball in a target and can describe at least one real change made.
Common stumbles: Giving up after one failed attempt instead of adjusting and trying again; changing too many things at once to know what actually helped.