Trying to modify behavior in the typical reactive mode has not proven effective. Students who need help the most benefit least from discipline as usual. The Collaborative and Proactive Solutions (CPS) model does just that. Collaborative and Proactive Solutions are described by Dr. Ross Greene in his influential books The Explosive Child, Lost at School, and the recently released Lost and Found. This resource kit is a companion piece to Dr. Greene’s webinar with PresenceLearning “Lost and Found: What Works (and What Doesn’t) for Behaviorally Challenged Students”. It provides you and your staff with the materials you need to implement CPS, including the Assessment of Lagging Skills and Unsolved Problems (ALSUP), a problem solving plan, strategies for drilling down into problems with a student, a Plan B cheat sheet, an FAQ, and tips and tricks for using the ALSUP.