Ключевые слова: activity, asian, boys, caucasian, childhood, children, class, daylight, daytime, elementary age, european, exercise, exercising, fitness, fitness ball, fitness mats, footwear, four people, gesture, girls, group, gym, indoors, kids, multicultural, multiethnic, outstretched hands, panorama, panoramic, preteen, selective focus, side view, sneakers, sport, sport equipment, sporting, sports center, sportswear, squat, together, togetherness, training, working out, workout, youngsters,