Physical activity has many health, social, and academic benefits for youth (United States Department of Health and Human Services [USDHHS], 2008). It can help children and adolescents improve cardiorespiratory fitness, build strong bones and muscles, maintain a healthy weight, reduce symptoms of anxiety and depression, and reduce the risk of developing health conditions such as obesity, Type II diabetes, and other chronic diseases. Additionally, students who are physically active tend to have better school attendance, classroom behaviors, cognitive performance, and grades (Centers for Disease Control and Prevention [CDC], 2018). Schools have a unique opportunity to support children's health and well-being because children spend so much of their time at school. The purpose of this editorial is to introduce the reader to the need for and components of a Comprehensive School Physical Activity Program (CSPAP) as well as strategies being implemented by the Active Schools movement to increase CSPAPs in K-12 schools and how individuals, schools, and organizations can become involved in the Active Schools movement.