Ключевые слова: 3d printing, african american, black, boy, building, caucasian ethnicity, child, class, classroom, communication, computer, connection, cooperation, creativity, design, development, discussion, education, engineering, girl, group of people, innovation, internet, kid, laptop, learning, lesson, man, occupation, people, programmer, programming, robot, robotics, school, science, sitting, stem, student, table, teamwork, technology, teen, teenager, tween, two, typing, using, working,