Ключевые слова: academic, angry, arguing, argument, back, blackboard, board, chalkboard, class, classroom, college, demonstrating, discussing, education, exam, experienced, explaining, green, help, helping, individual, lazy, learn, learning, lecture, lecturer, lesson, man, mentor, mentoring, old, personal, pointing, presenting, private, pupil, school, showing, strict, student, study, studying, teacher, teaching, to, trainee, training, tutor, tutoring, university,