This publication provides practical, step-by-step guidance for teachers on becoming more effective in classroom management by using a positive and constructive, rather than negative and punitive, approach to foster prosocial student behavior. The publication is divided into an introduction and three parts. The Introduction examines why effective classroom management is absolutely necessary and describes the benefits of a positive, prosocial approach. Part 1 discusses classroom management and examines forces that work against prosocial behavior. Part 2 focuses on the practical aspects of three key dimensions of positive classroom management: the physical (importance of setting up a classroom as a safe and productive learning environment); the instructional (importance of teaching so that students stay focused and learn); and the managerial (importance of establishing smooth routines for nonteaching functions). Part 3 offers a blueprint for successful classroom management based on systematic teacher preparation and reflection and includes step-by-step checklists to help teachers prepare for the three dimensions of classroom management as well as summary checklists of key points to help in the process of reflection. (Contains 50 references.) (ND)