Ключевые слова: back, blackboard, board, business, chalkboard, class, classroom, coach, coaching, computer, demonstrating, discussing, distance, distancing, education, explaining, internet, laptop, learning, lecture, lecturer, lesson, man, office, old, online, personal, pointing, presentation, presenting, school, seminar, showing, social, student, study, studying, teacher, teaching, teleconference, teleeducation, telelearning, telestudy, telestudying, teletraining, trainee, training, virtual,