Ключевые слова: back to school, backpack, boy, busy, candid, child, children, class, classroom, dark hair, education, elementary school, embracing, expertise, friends, friendship, girl, group of people, happiness, in a row, intelligence, knowledge, learning, long hair, looking at camera, multi ethnic group, posing, school, school building, school children, science, september, skill, smart, smiling, standing, student, studying, teenage girl, waist up, wisdom,