Ключевые слова: algorithm, background, binder, blended, blur, business, card, chalk, chalkboard, classroom, communicate, communication, concept, course, definition, development, document, education, files, folder, index, industry, internet, know, knowledge, learn, media, method, methodology, mode, office, plan, process, progress, ring, social, stationery, strategy, study, success, supplies, system, teach, technique, text, toned, training, word, work, working,