Ключевые слова: addiction, back to school, backpack, boys, child, childhood, children only, communication, connection, corridor, elementary school, elementary student, flooring, form of communication, girls, horizontal, indoors, leisure games, lobby, locker, mobile phone, playing, pointing, portable information device, private school education, red color, reopening, school, school building, school children, schoolboy, schoolgirl, schoolyard, sitting, smart phone, social media, student, surfing the net, using phone, wireless technology,