Ключевые слова: 1112, 1213, 1415, 1516, 1718, adolescence, american, boy, browsing, caucasian, chair, classmate, classroom, club, computer, concentration, confident, desktop, display, educational, european, french, german, girl, group of people, high school, highschool, homework, innovation, knowledge, learn, library, online, person, project, pupil, researching, russian, school, science, sharing, student, technology, teenage, teenage girls, tutor, watching, working,