I had somewhat of a bad experience with Professor Butler from the start of the quarter for personal reasons, but putting that aside, I think that he was a decent professor. He definitely loved teaching the material and made it easy to stay awake in his 8 am lecture! He was always very available in office hours and such, but I felt that he kind of looked down upon me when asking him certain questions - as if what I was asking was a ridiculous question. Butler is definitely very knowledgeable and you can tell that he loves teaching - just make sure that you don't get on his bad side.

I LOVED PROFESSOR BUTLER! He was COMPLETELY approachable, and I wasn't afraid to joke around with him. He is extremely helpful and patient in office hours. His lectures are extremely organized, and the good thing is that in the beginning of class, he has a "previously in math 3b section..." where he summarizes the main points from the last lecture (he does this about ten minutes before class begins, so if you want to copy it down, you better get there early). He makes jokes during lecture and is really funny, so math isn't that dreadful. I'd watch out for his tests though... they are DEFINITELY not a cake walk... Try to do his practice midterms/final. Those were definitely helpful. Just keep up with your work, do homework, and don't cram last minute.

I haven't gotten my grade yet for this class but...
He's a very very very very nice, approachable professor who is TRULY concerned with being the best professor he can be. Every time I had a question, he was more than willing to answer and I was, for once, not afraid to go to office hours. Do the homework (I didn't and I suffered as a result of it) and make sure you go to lecture. He is a very good, organized lecturer who tries his best to make lecture/math enjoyable. The first midterm was HARDDDD I got a horrible score, but the second one was better. Just make sure you study, as math3B is not extremely simple.