This document discusses the effects of behavior systems on academic outcomes. It outlines key components of multi-tiered behavior support systems including understanding behavior science, team-based problem solving, data analysis, aligned behavior curriculum, acknowledgement of appropriate behaviors, consistent responses to violations, and individualized interventions. It shows how implementing these components fully at all tiers leads to improved student progress and campus culture, while limited or inconsistent implementation is associated with reduced student progress, staff buy-in, and instructional effectiveness. The document provides recommendations for districts to develop their knowledge and implementation of behavior support systems from limited to high levels.