Abstract
Classroom management is a critical component of effective teaching. Despite its importance, little information is available about how teachers gain and use knowledge about management in their classrooms. The authors examined elementary physical education teachers' development and use of pedagogical knowledge related to class management. The authors interviewed 20 elementary teachers (14 women and 6 men). A constant comparison process guided data analysis. Trustworthiness measures included triangulation of data sources, member checks, and a search for negative cases. Results reveal insights into teachers' knowledge origins and influences, evolution, and content regarding class management.