He has been teaching at the university since Sept. 1, 2000. DeFelice teaches courses on the ancient world, premodern Europe, colonialism and modern China. He also teaches an honors seminar every few years. In addition, in some of the classes DeFelice teaches Reacting to the Past games. The Reacting to the Past games involve students taking on roles and writing assignments from the view of a specific person in history. Each role plays a part in the game. What is unique is that only a few other campuses in the United States are doing this as well.