Ключевые слова: active, active lifestyle, boys, caucasian, child, children, class, coach, education, elementary, elementary age, elementary school, exercise, exercising, female, fitness, flexibility, fun, girl, girls, group, gym, healthy, indoors, junior, kid, learning, lesson, motivation, people, physical, physical activities, playing, school, school children, sport, sports clothing, sports court, sports training, student, teacher, team, together,