The development and maintenance of a physically active lifestyle and the promotion of health-related physical fitness have become two important components of the national standards for physical education. Physical education is one of the important aspects of the educational and teaching processes. This study was designed to determine the factors of teaching effectiveness for physical education by comparing the opinions of students on teaching courses of King Mongkut's University of Technology, Thonburi with the totals of six aspects: (1) the purposes of Physical Education learning; (2) content and Physical Education programs; (3) teaching methods and teaching activities; (4) the personality aspects of Physical Education instructors; (5) equipment and facilities; and (6) assessment and evaluation. The sample included 1,000 students, with 558 male students and 442 female students, selected using the stratified random sampling method and divided into groups based on gender and types of sports. The results of the study showed that the highest percentage for the overall development of teaching physical education were the personalities of Physical Education instructors (59.18%) and the lowest percentage for measurement and evaluation had the lowest percentage (45.53%). The comparison between male and female students found that the course content and curriculum were at a minimal percentage for male students (45.42%), while the teaching methods and activities for female students (46.81%). Physical education specialists served as an important force in providing health-enhancing physical education for children and adolescents, as they are more effective than classroom teachers in promoting moderate to vigorous physical activity.