Ключевые слова: abstract, background, blackboard, blur, blurred, blurry, bokeh, boy, child, class, classroom, color, colorful, computer, concept, de, discount, display, diversity, education, entertainment, focus, friends, fun, grade, group, happy, homework, interior, kid, learn, lesson, many, people, play, pupil, room, school, schoolboy, schoolchild, schoolteacher, student, study, teacher, technology, together, uniform, young,