My physics professor is so frustrating. First off, when I signed up for the class, I specifically took it because there is one really good professor and he was scheduled to teach this section. On the first day of school, the professor got changed and there were no other classes I could fit into my schedule. Secondly, this new professor, his PhD is in environmental science and he has not taught a physics class before. Every single class he mumbles around, never lectures on the actual material, and when asked questions never gives a clear answer. I asked him to explain a homework problem the other day, he proceeded to do it wrong on the board, get a wrong answer, and then tell us "I actually don't know how to do this one, I'll have to get back to you." I understand that everyone has bad days, but how can you assign a problem that you don't even know how to solve yourself?! On top of that, based off the syllabus we were supposed to take four exams plus a final. We have taken two, and now he has decided that he would rather do a weekly 20 point mini-exam instead of the four big 100 point ones. So he is completely changing the class structure half way through the semester and he hasn't even given us a new syllabus explaining the new grading format. I was able to get a 102% and a 92% on the first two big exams, but now his little "exams" I only got an 81% because we have one day to study following the lecture where it is "taught." So there is no time to get help if you don't understand something. On top of all of this, he has magically lost one of my lab reports that I definitely turned in, so there is a currently a zero in the gradebook for that until he finds it and fixes it. Other students in the class have gone to the Dean of Students to complain because he is making the class so difficult for all of us, but nothing is being done. I'm doing my best to suck it up and survive, but when my grade has gone from a 96% to an 89% in under a week, I am not very pleased.