Ключевые слова: abuse, backpack, beginner, behave, boys, bulling, casual, caucasian, child, childhood, children, classmate, discrimination, education, elementary, fight, friends, friendship, full, going, grade, horizontal, hurt, jump, kid, kids, knowledge, learning, little, offend, outdoors, primary, prroblem, pupils, rucksack, run, running, school, schoolchild, schoolchildren, stress, student, students, summer, together, violence, walk, young,