Ключевые слова: beautiful, boys, childhood, children, class, classmates, classroom, concept, education, elementary, girls, grade, group, hands, happy, indoors, junior, kids, knowledge, learners, learning, lesson, little, many, people, person, preteen, primary, pupils, raising, ready, school, schoolboys, schoolchildren, schoolgirls, schoolkids, sitting, small, smart, students, study, studying, teacher, teaching, together, woman, young, youngsters,