This document discusses several classroom management theories and theorists that can guide teachers in creating an effective learning environment. It covers choice theory by William Glasser, student-directed learning by Alfie Kohn, assertive discipline developed by Lee and Marlene Canter, behavior modification theory of B.F. Skinner, positive behavior support, humanistic theories of Carl Rogers that emphasize student engagement and freedom, Jacob Kounin's ideas around lesson management and student attention, and Harry Wong's emphasis on establishing classroom routines and procedures. Overall, the document suggests that drawing from various classroom management strategies can help teachers ensure their students are learning without disruption.