Ключевые слова: alarmclock, back, background, black, blackboard, board, chalk, chalkboard, child, childhood, class, classroom, clock, college, concept, education, emotion, expression, female, girl, hands, high, holding, homework, kid, knowledge, learning, lesson, pupil, scared, school, schoolchild, schoolchildren, schoolgirl, schoolkid, shock, space, student, study, surprise, tech, teenager, time, white, young, youth,