Ключевые слова: 3d printing, african american, black, boy, building, caucasian ethnicity, child, children, class, classroom, computer, cooperation, creativity, design, diversity, education, engineering, happiness, internet, kid, laptop, learning, lesson, male, man, people, place of work, programming, robot, robotics, school, science, sitting, smiling, stem, student, table, teacher, teamwork, technology, teen, teenager, tween, two, working, workshop,