Ключевые слова: african, african american, american, black, boy, child, class, classroom, college, concept, desk, education, education concept, elementary, elementary school, female, four people, girl, hand, indoors, knowledge, laptop, learn, learning, lesson, male, mid adult, mixedrace, notebook, office, people, raising, raising hand, rear, rear view, school, school education, sitting, student, study, studying, table, teacher, university, view, woman, workplace,