Ключевые слова: african, african american, american, black, book, boy, business, caucasian, child, childhood, children, class, classroom, college, communication, computer, concept, digital, digital tablet, education, elementary, female, four people, girl, internet, kid, knowledge, learn, learning, lesson, little, male, mid adult, mixedrace, occupation, people, pupil, school, science, showing, student, study, studying, tablet, teacher, teaching, technology, unaltered, university, woman, young, young female,