How to request a professor to let you into their class For various valid reasons, I was not able to sign up for a certain math course that I need. The professor is amazing, and I really hope to get into her class. I went to her class every day for a week, and hoped to continue doing so until the last day to add, which is two weeks after the term starts. However, she had far too many students sitting in until Thursday of the first week, so she asked people who weren't enrolled to stop coming, otherwise there wouldn't be enough physical seats for the people who actually enrolled in the course. As a plus she is such a sweet lady, and I was hoping to take math in an unintimidating environment, so that I can actually learn (I've had many horrible experiences). I emailed her multiple times, and told her my situation of why I couldn't enroll on time, and simply requested if I could continue coming to the class for the second week, and I would sit in the back of the room, just in case someone happens to drop the class. She kindly denied my requests, but I genuinely want to be in her class. Not to mention, all the other math classes are also waitlisted, so I won't be able to get into other professors' classes either. I even took the quiz for her class on Friday, and got 20/20. I studied hard, so that she can see that I am serious about her course. I showed up on time/early every day. I am so disappointed, 1) because I need this course to graduate on time, since it's in a sequence of math courses 2) because this teacher was so genuinely great! I've never had such an amazing learning experience in a math class, and this was just in 4 days! She even stopped replying to my emails, which I understand because she is busy. 

Is there anything else I can do? I just want to sit in until next week to see if someone drops. The cap is 40 students, and she let in 43. Please help me out. Sorry for the long message. 

*By the way, only two extra students including me showed up to the class on Friday, and took the quiz. All the other students who wanted to get in didn't show up.
Lizzie, After reading the details which I asked you to add earlier, I can only come up to this solution: Go and talk to her in person. Being a teacher myself, I find it difficult to ignore the requests of an 'eager learner'. Which in your case is "you". Tell her how important it is for you to take that course and specifically from her and how you have performed in your first quiz. Ask her very politely if it is possible for her to allow you in that course (Politeness matters A LOT) and that you will continue to work harder. Try this and I hope it'll work. Good luck :)