Ключевые слова: academic, back to school, black, boy, caucasian, chalkboard, cheerful, child, childhood, class, classmates, classroom, communication, cute, development, early learning, education, elementary, elementary school, female, gesture, girl, hands, happy, in a line, indoors, knowledge, learn, learning, lesson, male, mixedrace, portrait, posing, positive, pupil, school, schoolchild, smiling, standing,