A pint-sized robot creeps across the floor, its wheels whirring noisily as it turns to navigate a path.
Nearby, a couple of middle-schoolers watch intently, one of them chuckling.
“What could you do to make it go faster?” asks an instructor.
The student examines his machine, furrowing his brow slightly.
Then it dawns on him — a slight modification to reduce resistance to the robot’s movement. There’s almost a grin, but this is, after all, serious business.