Written by Levin, Nolan, Kerr, Elliot, and Bajovic, the Fourth Canadian Edition of this book provides a theoretically-based, practical system for helping teachers prevent disruptive behaviour and promote appropriate behaviour. The system is rooted in three foundational principles: that teachers and students share responsibility for classroom behaviour, that teachers must change their behaviour if they expect student behaviour to change, and that students in constructive relationships with adults are more likely to engage in positive social behaviour and be academically successful. Included is an array of decision-making options that guide teachers’ approaches to classroom management with a range of options to prevent, cope with, and solve diverse problems. There are specific adaptations for Canadian educators, paying specific attention to Canadian policy and educational ideology.