Long after most kids are home, dozens of 6th graders at Elmhurt Community Prep in Oakland are reading, writing and more, until 5 or 6 o'clock. Their academic bankers hours, which often reflect the workday of their parents, is part of an innovative program run by Citizen Schools, a federally-funded non-profit that targets at-risk middle-schoolers in some of the nation's toughest neighborhoods.