I'm currently taking the Single Variable Calculus by Professor Ghrist from uPenn, and I think it hits all the correct notes: - Prof G and several of his TAs ar

I'm currently taking the Single Variable Calculus by Professor Ghrist from uPenn, and I think it hits all the correct notes: - Prof G and several of his TAs are in the forums. If you post a good or interesting question, they will show up and offer an answer. - The class is incredibly complete: way more complete and self-contained than any other MOOC that I have tried. Prof B is incredibly knowledgeable and quirky to say the least. - With the above said, the class demands a ton of self-study, but it is backed up with a lot of homeworks. Each lecture has a hw associated with it. They do have an attitude that you must struggle with the material and keep doing it over and over until you get the questions right and it starts to become second-nature. They pull this off by never giving answers to hw's. - Despite the attitude with the hw, they have given amazingly complete answers to Exam 1 and Exam 2 - They offered a diagnostic exam before you start. This would let you know right away if this class will beyond your head. - They really put some time into the class. The entire course is beautifully hand-drawn and I think the professor said that the drawings alone took 1200 hours or so. If you add in the Exams, hw, and the exam answers, there must be something like 1500 hours committed to making this course great. I'm not entirely sure what to think of the grading: 4 Exams at 5% of the grade each Final = 80% of the grade. I sort of like it because it gives you a bit of room to screw up and recover, but it is definitely shattering to do bad on an exam and start worrying about how bad the final may turn out. It is an interesting way to encourage you to take the work.