Ключевые слова: 1316, 1417, 3035, 3540, adolescent, american, attention, audience, boy, caucasian, cautiously, concentrated, concern, european, examination, exploring, female, focused, french, german, girl, grade, hearing, inside, learner, learning, listener, male, man, pedagogy, pupils, russian, scholar, scholarship, schoolchild, schooling, schoolroom, sitting, stripling, teacher, teenagers, teens, testing, viewing, young, young person, youngsters,