With an emphasis on Ecological theory, while incorporating the principles of Positive Behavior Support, and Problem-Solving/Functional Behavioral Assessment, this text addresses classroom management theory and strategies for three age groups: early childhood, middle school, and secondary school. Current trends in education are thoroughly explored and analyzed; and, research-based strategies are drawn from the full spectrum of management styles: behavioral, cognitive behavioral, social learning, and humanistic. As in prior editions, the goal of this text is to broaden and deepen future teachers' understanding of the behavioral problems they are likely to encounter, as well as the solutions they are likely to find effective.