This book presents a three-dimensional approach to handling hostility in the school that emphasizes methods of prevention, methods of action, and methods of resolution. Chapter 1, "The Problem of Violence," discusses the problem of violence in the schools and society, and considers how violence, aggression, and hostility have affected society and the schools. Chapter 2, "The Importance of Values and Principles," considers changing schools so that they promote, model, value, and teach according to principles and values. It recommends removing violent interventions that promote aggression and hostility and making nonviolent values the center of the entire school operating system. Chapter 3, "Strategies for the Teacher," outlines strategies for teachers to use to help students change their choices about aggressive feelings. These strategies address ways to perceive, treat, and teach students, with a focus on controlling violent student behavior, diffusing potentially violent situations, and teaching alternatives to violence. Chapter 4, "Teaching Students Alternatives to Violence," describes specific ways for students to control aggression and choose nonviolent choices for resolving problems. Chapter 5, "Creating Safe Schools: 25 Options for Increasing Safety," offers specific short-term and long-term steps to make schools safer from violence and provides 25 ways to address immediate safety issues facing schools. (Contains 6 figures and 97 references.) (SLD)