Hi Shawn: Some teachers feel that because they taught the same material before, or that their education, training, work experience, and skills have given them a degree of knowledge, their level of preparation can be weak. "Nothing good results from lack of effort". The problem is that unless the class is very astute or sharp and knows the material already, they won't know what information they could be getting, or perhaps delivered in a more meaningful way. But they will notice unprepared, and waht a waste of valuable time that consumes over time. That's the real shame. Regards, Barry