Behavioral difficulties of school-aged students are typically dealt with in a reactive, rather than preventative manner. This article examines a proactive approach, consistent with the Response-to-Intervention model, using a screening measure designed to identify students at risk for behavior difficulties and targeting these students for early intervention. Participants in this study were 22,056 kindergarten through 8th grade students in the Minneapolis Public Schools. Teachers completed a 12-item behavior screener for each student in the fall. The scores on this measure were significantly correlated with suspensions, achievement scores and attendance data over the course of the school year. Potential implications for behavioral planning and interventions are discussed. (Contains 5 tables, 1 figure and 2 footnotes.)