Ключевые слова: academic, blackboard, board, book, caucasian, chalkboard, child, children, class, classmates, classroom, desk, docent, education, educator, elementary, female, geometry, girl, group, hand, hands, happy, kids, knowledge, learning, lesson, mark, mates, middle, people, person, portrait, primary, raising, school, small, smiling, student, students, study, studying, suit, teacher, teaching, up, woman, women, work, young,