Ключевые слова: angry, blackboard, boy, caucasian, child, childhood, children, class, classmate, classroom, cruel, depressed, desk, despair, education, elementary, emotion, emotional, expression, frustrated, gesture, girl, grade, hiding, indoor, kid, knowledge, learn, little, looking, mad, negative, people, person, portrait, preschool, primary, problem, pupil, school, schoolboy, schoolgirl, stress, student, study, table, trouble, unhappy, upset, young,