Depending on your institution, it&#x27;s quite possible that your professor is there for research instead of teaching. It&#x27;s unfortunate that today an academic who wishes to have job security must do one in order to do the other. Also consider the possibility that she is simply uncomfortable responding extemporaneously in front of an audience (I remember one of my lecturers who could barely do basic arithmetic while at the whiteboard, presumably out of anxiety).