In the view of the imaginative school authorities at Greeley, Colo., conventional schoolhouses are square. So Greeley, in what is perhaps the most recent radical transformation of a school district's plant, has built four new schoolhouses that are circular or hexagonal. Moreover, they have no windows, and one of them has carpets on all the floors. "We know that a good teacher and a good blackboard are the fundamentals of teaching," says Leslie K. Grimes, school superintendent in Greeley. "But we also think that the good teacher can do better in a comfortable, air-conditioned room without noise and glare."
The...