Book excerpt: How to keep meltdowns from overheating your classroom This book outlines practical steps for preventing and responding to the various phases of meltdown behavior in students with AUtism Spectrum Disorder. Based on Geoff Colvin′s best-selling book, Managing the Cycle of Acting Out Behavior in the Classroom, this practitioner-friendly guide provides special and general education teachers of autistic students a seven-phase positive behavior support model that includes interventions for each phase. Teachers will find experienced guidance for providing a supportive environment in which students with ASD can succeed.