What we want for schools reveals what we value as a society. "What's the point of school?" Parents have a stock set of responses, but the question remains unsettled, even two centuries after the Prussians invented compulsory education. The Prussian idea of what a school is for - to mold the populace to serve the state - seems unacceptable today. In vogue, instead, are slogans like "acquiring marketable skills" and "realizing your full potential."...