I teach in a private Taiwanese institution and one of the challenges for me is teaching online or hybrid courses to classes that are generally big in sizes. Having a class of 50 students in a freshman class is not uncommon. And some of them have over 65 students. It has made my course management extremely difficult. Monitoring group activities and online forums have been very burdensome for me. I am thinking about having students rotate to faciliate their groups so that they can assume an ownership in online participation. However, with these big classes, tracking the students' performance can still be overwhelming. Any tips?