Ключевые слова: academic, back, board, book, books, class, classroom, college, discussing, education, exhausted, explaining, fatigue, frustrated, frustration, graduate, homework, hours, learn, learning, lecture, lecturer, lesson, long, man, mentor, mentoring, reading, sad, school, secondary, stressed, student, study, studying, teacher, teaching, textbook, textbooks, tired, training, tutor, tutoring, unhappy, university, upset, white, whiteboard, young,