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