Randomized group contingencies is a classic evidence based intervention with articles reaching back to the early 1970 (e.g. Axelrod, 1973). The primary purpose of this intervention is to increase the likelihood that a group of students (or one target student within a group) continues to act appropriately. This package can be used for a small group of students or an entire class. This intervention is appropriate after all of the target behaviors (appropriate behaviors – – ex: capacity to sit in seat for at least 30 minutes, raise hand, etc.) for the classroom have been learned and demonstrated by each member of the group or it can be used to teach appropriate or disruptive behavior rules to a population of students (this intervention incorporates teaching rules of behavior). It provides an effective and feasible way to teach and maintain appropriate group behavior.