Cloe Gray watches a computer screen most of the day, sitting in her pink bedroom surrounded by stuffed animals, books and photos on the wall. The 11-year-old is not able to go to school. She is at home in the U.S. state of Maryland, recovering from surgery. The computer is there to control a robot that goes to school in her place. The robot comes from a company called Double Robotics. It is officially called a “telepresence robot,” but her friends at school like to call it the “Clo-bot.” The robot is an iPad tablet connected to a long pole on a set of wheels. Cloe can control the robot using her home computer. The tablet has a camera with a special lens that allows Cloe to see most of the classroom. She can speak to the teacher and her classmates using a microphone. A speaker allows them to hear her. If she wants to answer a question, she presses a button that makes the robot taller.