Ключевые слова: background, blackboard, boy, caucasian, chalkboard, child, childhood, class, classroom, cloud, concept, dream, education, exam, finger, fun, girl, green, happy, homework, idea, imagination, indoor, joy, kid, lesson, little, male, one, people, person, picture, portrait, preschool, pupil, question, read, school, schoolchild, schoolwork, small, smile, space, student, study, technology, text, textcloud, think, work,