Ключевые слова: adorable, bad mood, books, boys, caucasian, chalkboard, childhood, children, class, class work, classmates, classroom, copy space, cute, desks, education, elementary age, emotion, emotional, european, five people, frustrated, girls, indoors, kids, lesson, lettering, letters, preteen, pupils, raised hands, sad, sadness, school, schoolboys, schoolchildren, schoolgirls, schoolkids, selective focus, signs, sit, stand, symbols, tables, together, togetherness, upset,