Ключевые слова: boy, boys, break time, caucasian, cheerful, child, childhood, children, class, classroom, cute, education, elementary, elementary age, elementary school, female, friends, fun, game, girl, girls, group, happy, kid, kids, kindergarten, knowledge, learn, learning, lesson, outdoors, people, person, playing, preteen, primary, pupils, rear view, school, schoolchild, schoolchildren, schoolgirls, schoolkids, small, smiling, studying, teacher, together, white, young,