Ключевые слова: african ethnicity, attention, black, book, boys, child, childhood, children, classmates, classroom, close up, concentrating, copy space, day, desk, development, education, elementary school, front view, girl, girls, incidental people, indoors, interest, kid, knowledge, learning, lesson, looking down, one person, preteens, primary school, pupils, school, school kids, school uniform, schoolboys, schoolchildren, schoolgirl, schoolgirls, sitting, south africa, students, vertical, waist up, writing, youth,