A quality physical education program is at the heart of any plan to promote lifelong participation in physical activity, but it has become evident at many schools that physical education specialists alone cannot address the physical activity needs of children. This is why a series of studies were conducted to develop strategies for the implementation of a whole-school physical activity program. Such a program is possible if the principal and teachers recognize the potential health benefits of integrating physical activity into the total school experience and if the physical educator plays a leading role in creating a plan that engages both students and staff.