Ключевые слова: adolescence, adult, asking, bright, caucasian, cheerful, classroom, concentration, desk, education, exam, female, group of people, high school, high school student, indoors, instructor, learning, male, men, people, picking up, rear view, responding, school, school children, secondary school building, student, study, studying, teacher, teaching, teenage girls, teenager, teenagers only, university, white, whiteboard, wisdom, young adult, youth culture,