Ключевые слова: academic, alphabet, background, board, card, cards, classroom, cognition, college, colorful, communication, concept, copy, copy space, course, do, education, educational, empty, english, exercise, flashcard, foreign, game, grammar, hand, holding, idea, information, knowledge, language, learn, lesson, letter, lifestyle, linguistics, message, paper, practice, presentation, print, school, skill, spelling, study, studying, syntax, text, type, vocabulary,