Good

Dr. Klein is very helpful and gives constructive feedback for each assignment. Even for discussion posts! To complete the discussions and assignment there is a lot of reading required; this isn't the class where you can pretend to know the material. If you don't get an A on the first exam then drop the class and save your time. You will never catch up. There are quite a lot of required posts each week, with feedback posts from other students as well. Do not take course if you are not a math genius.