Because of teachers' busy schedules, it is important for administrators to allot specific time for teachers to meet as groups. "It's absolutely immoral to tell teachers they need to collaborate and not give them the time to collaborate," says Mike Mattos, principal at Pioneer Middle School in Tustin, Calif. His school implemented the Late Start Wednesday program, in which students come to school late on Wednesdays (the other days are longer to make up classroom time), allowing teachers time for collaboration.