Ключевые слова: back to school, backpack, boy, boys, caucasian, child, childhood, children, classmates, education, elementary, friends, friendship, girl, girls, grade, gray, grey, group, happy, holding hands, isolated, jump, jumping, junior, kids, lifestyle, looking at camera, people, person, portrait, positive, primary, pupil, pupils, row, school, school children, schoolboy, schoolchildren portrait, schoolgirl, schoolkid, smiling, standing, student, students, study, teaching, together,