This document provides an overview of Positive Behavioral Interventions and Supports (PBIS) and the role of para-professionals in implementing PBIS. It discusses PBIS as a multi-tiered system of support, establishing and teaching expectations to students, using acknowledgment systems to recognize positive behaviors, responding to minor problem behaviors through re-teaching expectations, and the importance of active supervision through constant movement and scanning of areas. The document also provides examples of environmental supports and small changes schools can make to improve behavior, such as adding structure to areas and increasing adult-to-student ratios.