Soap Making Class - Need "Beginners" Questions

I am going to be teaching a CP soap making class starting Sept 10. Since I have been making soap for over five years, I have kind of forgotten what my questions were when I first started in the craft, so I am looking for questions about cold process soap making that may come up in my class, so that I feel prepared to answer them. Make sense?

I do have an outline to cover the basic ingredients and equipment, plus additives, scents, storage, curing, etc. I feel I have most of the basics covered, but - it doesn't hurt to have a little extra information. Thanks!
-Kim