Technically, i^2 = -1, but you get the picture
Middle-schoolers don’t usually play with toy cars. But in a classroom in Arlington, Virginia, a group of sixth-graders gather around a plastic Lightning McQueen car, ready to rev it up.
The students not there to play with it, exactly, but to figure out how it works — and prepare the car for a driver who needs it.
Eight students from Gunston Middle School are rewiring the battery-powered