Ключевые слова: age, blackboard, boys, building, camera, casual, caucasian, cheerful, child, childhood, children, classroom, closeup, clothing, creativity, cute, development, education, elementary, elementary age, females, friendship, fun, girls, glasses, group, happiness, indoors, intelligence, joy, learning, lifestyles, looking at camera, males, people, pointing, portrait, preschool, school, schoolboy, schoolgirl, selective focus, smiling, student, studying, teacher, woman, women,