A Mandarin Grade School in Minneapolis

On the outside, Betsy Lueth’s school looks like any other in this arty neighborhood of Minneapolis: a sprawling, boxy red brick building with plain steel doors. Yet inside, the blond, gregarious Minnesotan presides over an institution unique in the heartland: Yinghua Academy, a charter public school where elementary students of every ethnicity study subjects ranging from math to American history in Mandarin