The monograph revealed the organizational and methodical provision of the motion activity development in the extracurricular forms of physical culture of general educational establishments. Nature, standards and importance of motion activity, influence of hypokinesia and hypodynamia on the health state of pupils, ways of engaging to the systematic classes of physical exercises are described. The specific features of motion activity, physical state and motivational-valuable orientations of teenagers in general educational establishments are outlined. The model of motion activity development of teenagers in the extracurricular forms of physical culture was justified. The study is recommended for a practical use within the process of professional activity by the teachers of physical education, postgraduates, students and all motivated specialists who participate in the studies and education of pupils in general educational establishments under modern conditions.