Healthy child development relies on physical activity. New curriculum models are effectively integrating physical activity in education programs. The authors describe three such models: S.M.A.R.T. (Stimulating Maturity through Accelerated Readiness Training); Kids in Action, incorporating cardiovascular endurance, muscle strength and endurance, flexibility, and body composition for children birth through 5 years; and I Am Moving, I Am Learning, which addresses childhood obesity through a mind-body connection.