Ключевые слова: african american, back view, black girl, boys, chalkboard, childhood, children, classmates, classroom, copy space, education, elementary age, elementary school, girls, kids, knowledge, learn, learning, lesson, multiethnic, people, preadolescent, preteen, pupils, school, schoolboys, schoolchildren, schoolgirls, schoolkids, sit, stand, students, study, studying, together, youth,