Ключевые слова: academic, background, board, chalk, chalkboard, classroom, college, educate, education, english, exam, explaining, grammar, green, handwriting, intelligence, international, knowledge, language, learn, learning, lecture, lesson, lifestyle, object, rules, scheme, school, schooling, sentence, sentences, sign, stud, student, study, syntax, teach, teacher, teaching, theme, topic, training, university, white, wooden, written,