I find there are some that just have to be talking if the instructor is talking, and the comments are usually that students perception of a relevancy to the class, yet are very distracting. I tried to briefly answer one or two questions, but eventually had to say in a nice way that we need to stay more focused on the topic at hand and if the student wished we could have a more pointed discussion outside of classtime that would hopefully answer his questions. Writing questions down is something I have not tried as yet, but I can see… >>>