Ключевые слова: accessories, back, binder, blackboard, blue, book, chalk, chalkboard, child, class, classroom, concept, copy, desk, diary, document, drawing, educate, education, elementary, empty, equipment, formulas, green, group, handwriting, homework, horizontal, isolated, knowledge, learn, learning, library, memo, message, nobody, notebook, notepad, office, paper, school, space, stack, stationary, study, studying, textbook, university, wisdom, write,