In the theory and practice of sports the technique of movements abstracts from the psychological - semantic organization of impellent actions as a rule. The given problem hasn't been covered enough in the traditional didactics. It is noted that the categorical apparatus teaching biomechanics must contain not only the characteristics of the object, but a coded way of dealing with it. It is shown that the practice of sports and biomechanics are linked through didactic modeling the object of knowledge, the subject of teaching, training material for learning effects.