Ключевые слова: background, binder, blank, book, business, class, classroom, concept, copybook, design, diary, document, education, empty, hand, hold, holding, idea, isolated, memo, message, note, notebook, notepad, notepaper, object, office, pad, page, paper, pedagogy, school, sheet, space, spiral, teach, teacher, teaching, template, textbook, white, write, writing, written,