Abstract : Research has as objective to represent and to understand the practices of didactic regulation of five teachers in Physical education. Didactic regulations are, as pal1 of our research, communications and gestures were addressed in one or several pupils enlisted man (en) in a given task. We are notably interested in the manner are managed and staged know ledges with technical character. In effect, regulations are privileged time of technical guidance and more in general co-building of signification shared regarding knowledge. Five studies of case are accomplished. The teachers are volunteers and have at least a dozen years of experience. They are filmed and recorded during six sessions. A maintenance follows the six observations. It is aimed at understanding the determiners of practices better by gathering the point of view of the teachers. Results show that regulations are gestures typical of the education of Physical Education. However, behaviors of lesser and not regulation are bet in days and analyzed. Besides, phenomena in link with knowledge are represented (ousting, masking, disappearing). If noticed practices are partly inherent in Physical Education teaching, they are not that the fruit of subjugation. According to their experiments and according their distinctive identities, the teachers rejected, put distance it the gestures of regulations, or, contrariwise, inserted them into their scholarship of teaching. All felt and still feel inherent difficulties in regulation. All have no same means to make face, nor the same will there to feel there efficient.