The research study was conducted to find out how professional physical education teachers use their content knowledge on managing students’ behaviour in practical physical education lessons. The study specifically was conducted in the seven Senior High Schools in the Techiman Municipality in Brong Ahafo Region, Ghana. The research study employed the descriptive observational and survey methods to collate results for discussions and recommendations by the use of duration recording instrument and open ended questionnaires to physical education teachers. The research covered form one and two classes in each school. The total classes that the student population covered were forty-six (46) comprising twenty-three (23) each for forms two and three. This constituted two-thousand, seven hundred and sixty (2760) students with an average class size of sixty (60) students including boys and girls with the girls’ forming about forty percent of each class. Out of the 46 classes, four were selected randomly for the students’ behaviour management observation. Seven out of nine teachers responded to open ended questionnaires while four of them taught for observation on some managerial episodes, namely Game, Roll taking, Waiting, Lateness, and Disperse. The simple random sampling technique was used to select the classes for observation for data collection. The results revealed that physical education teachers use managerial techniques to manage their student behaviours in the class. However, it came to light that physical education teachers do not conduct roll call on their students to check absenteeism which can be researched into to come with the reason. It is recommended that further research study could be carried out on the conduct of physical education teachers’ towards the management of practical physical education lessons
Keywords: Content Knowledge, Physical education, behavior management, game