Ключевые слова: abstract, background, blur, blurred, book, books, boy, child, classroom, color, concept, dictionary, education, elementary, exams, eyeglasses, eyesight, fun, glasses, happy, interior, kid, knowledge, learn, learning, library, literature, many, object, paper, people, play, preschool, read, room, school, sightedness, stack, story, study, text, textbook, view, wisdom, young, youth,