Whew! I imagine it would be nearly impossible to take 4 per session. The way it works is that students typically take 1 course per session. They have 8 weeks to finish an interactive course and up to 10 weeks to finish an independent course. The independent courses are self-paced, so you can finish each course as quickly as you want. It usually takes me abiout 4 days to finish one module if I'm really booking it.

(There are 8 modules or sections per course.) In my opinion, if your goal is to earn your degree ASAP, I would take one course at a time and just finish them as quickly as possible. I read somewhere that a student was able to earn her MBA (?) in one year. You can take more than one per session if you'd like, but I wouldn't take more than two. I hope that helps! What degree program are you looking into?