Ключевые слова: academic, academy, age, blackboard, caucasian, chalkboard, class, classmates, classroom, college, computer, copy space, course, courses, desk, educational, educator, exam, institute, knowledge, language, laptop, learn, learning, lecture, lesson, male, man, math, notebook, old, professor, retired, retirement, school, senior, sitting, smart, student, study, studying, teach, teacher, teaching, textbook, training, tutor, tutorial, university, using,