Ключевые слова: 40s, academic, attentively, boy, caucasian, child, childhood, class, classmates, classroom, computer, computer room, concentrated, concentrating, cute, desk, development, early learning, education, electronic, elementary, elementary school, female, focused, girl, keyboard, knowledge, learn, learning, male, mature adult, mixedrace, mouse, pupil, school, schoolchild, screen, serious, sitting, technology, thoughtful, typing, using, woman,