Ключевые слова: academic, blackboard, board, book, chalkboard, chemical, chemist, chemistry, class, classroom, college, demonstrating, discovery, discussing, education, experiment, experimenting, explaining, green, holding, learn, learning, lecture, lecturer, lesson, man, mentor, mentoring, old, pointing, presenting, reading, research, researcher, school, science, scientific, scientist, showing, study, studying, suggesting, teacher, teaching, test, testing, textbook, tutor, tutoring, university,