Best practice in preventing severe problem behavior in schools involves implementing a continuum of effective behavior support. This continuum includes primary prevention strategies implemented with all students, secondary prevention strategies for students at-risk, and tertiary interventions for students who engage in the most severe problem behavior. This article outlines one type of secondary prevention program called the Behavior Education Program (BEP) which is a modified, check-in, check-out intervention. Key features of the BEP intervention are outlined along with a summary of the research that has been conducted to evaluate intervention effects on problem behavior. In addition, recommendations are provided about the modifications that would be necessary to implement the BEP in preschool settings. (Contains 5 figures and 1 table.)