Ключевые слова: boy, caucasian, cheerful, child, childhood, children, class, classroom, cute, desk, discover, education, elementary, explaining, expression, girl, hand, happy, kid, knowledge, learn, learning, lesson, lifestyle, pencil, people, posing, primary, pupil, raise, school, school girl, schoolchild, schoolgirl, schoolkid, science, sitting, smile, smiling, student, study, studying, teacher, teaching, woman, young,