This professor is very hard to understand and frequently solves problems wrong/skips over steps when solving problems (as if assuming you know them already). Barely gained anything from lectures. However, the study guides for the midterm and final were basically identical to the exams. Basically gives you the A if you can teach yourself.

Beware of Zetian Yan. His lectures are impossible to follow. He speaks far too quick, he doesn't explain his process or the material. He simply solves the problem and expects you to know what he did. When a question is asked, he doesn't answer it clearly, rather leaves me more confused. Lots of homework, but the homework is better than the lecture.

This professor does not know how to teach and is very hard to understand. He solves problems, but is typically unsure if he is doing them right and makes a lot of errors. However, if you just want to pass, it is very easy since he gives study guides that are nearly identical to exams. Self teaching is required in this class.

GOAT lmaooo, but don't take him if you actually want to learn abt calc 2

Lectures are super hard to follow and no slides/structure, just solving equations and problems with little explanation. He is not super receptive to questions either, ended up teaching material to myself and never going to lecture. Homework is pretty reasonable though and midterm was the same as a practice midterm he gave to study beforehand.

Yap session

Yan is nigh impossible to understand due to his heavy accent and mumbling. He teaches easy topics in a confusing way; I can't imagine how hard it would be to follow his lecture later in the course. The homework on Canvas is not at all what's being taught in lecture (it's also much harder). I've since switched to a new professor and am much happier.

Prof Yan is joining us temporarily(?) from Penn. I found him extremely hard to understand. The flow and structure of his lectures added difficultly on top of that. Questions were not laid out well. I dropped the class because it was only going to get worse. He is bilingual, so if Mandarin is better for you, this may be helpful for office hours.