The other 90%.....
I have only taken the first two classes, quizzes and homework - but WOW!!! An excellant simple to understand version of a very complex subject. The sign of an inteligent person is someone that can take a difficult concept/subject and make it understandable. You have past the test for an intellectual master on this subject. Your plain spoken approach is so very credible and comprehensibile that even I can gain from the experience. And for someone in their late 50's, if I can learn anything that is a good sign. GREAT CLASS!!