By . At the beginning of “History and Future of (Mostly) Higher Education,” the students in both the MOOC and the face-to-face class at Duke University were asked to write about their favorite teacher. I didn’t hesitate in my answer: Karen Hevelston. Her first day was as a substitute in my high-school art class. After dutifully giving the assigned painting project, she strolled through the grouped tables quietly making comments. More...