The Martin Luther King School in Boston and nine other Massachusetts public schools used a grant from the Massachusetts Department of Education to expand their school days by at least two hours. Each school lengthened the time students spent in reading and math instruction. Farbman focuses on the Martin Luther King School's foray into an extended day. He shows how by adding 30 minutes each to reading and math blocks, and increasing the number of weekly science classes, teachers were able to go much deeper with a project-based learning approach. All King students also have a chance to choose a daily enrichment activity designed to connect to their interests and reinforce academic content. The school also built in 30 minutes each morning to implement the Responsive Learning curriculum, designed to teach problem-solving and social skills. (Contains 1 endnote.)