Chemical engineering assistant professor Adrianne Rosales does office hours a little differently. At the beginning of each semester, she blocks off multiple 15-minute slots in her schedule and encourages each of her students to come by for a chat. It helps her learn the names of the nearly 70 or 80 students in each of her classes, and makes her students feel more comfortable dropping by again once the course gets going. “We have a rapport right away for constant feedback and exchange of ideas,” she says.