When Michael Copperman left Stanford University for the Mississippi Delta in 2002 - recruited by Teach for America - he imagined he would lift underprivileged children from the narrow horizons of rural poverty. Well-meaning but naïve, the Asian-American from the West Coast says he soon lost his bearings in a world divided between black and white. Trying to help students, he often found he couldn’t afford to give what they required―sometimes with heartbreaking consequences.