Lei Chen

This professor has taught: MATH410, MATH411, MATH734, MATH848P, MATH848T
Information Review
Lei Chen
MATH410

Expecting an A+
Anonymous
12/12/2022
I will try to keep this review short, as the other reviewers can sum it up. Her lectures could be better and could do some work. Reading the respective section of Fitzpatrick beforehand was necessary to gauge her lectures well, as they often seem unplanned, and the proofs sometimes seem hand-waved. I wouldn't say she's a bad lecturer, just that the proofs done in class are not always done with full rigor, and the additional commentary can [sometimes] make the lecture hard to follow, which is why I stopped showing up to the lecture after a while. Homework can be quite difficult. However, she's extremely helpful and super approachable during office hours and will answer any question with full rigor and critique proofs quite well. I found her to be quite a nice person in general as well, apart from just the subject matter being discussed. She does an excellent job of easing students into theoretical mathematics and is quite lenient with grading exams - full rigor is only sometimes expected, even for full credit. There are a lot of extra credit opportunities and a curve, which makes it easy for the final grade to be indicative of your actual understanding of the course content at the end of the course, and she drops quizzes and the lowest exam. As another reviewer here mentioned, the exam reviews are close to the exams themselves, and even the extra credit questions are not of unreasonable difficulty, warranting relatively high-class averages. If you can understand all the homework problems and do the reviews, it is quite fathomable to score a minimum of a B in the class and an A with some extra studying.
Lei Chen
MATH410

Expecting an A
Anonymous
12/09/2022
Goated in the sauce, for different reasons than being a good prof. As the other reviews may say, she is disorganized and doesn't really seem to plan a lecture, so some lectures are not very easy to follow. She also likes to offhandedly mention a lot of comments on the proof instead of doing them, which are pretty confusing unless you have selective hearing. However, she's nice and gives some genuine help in OH, where if you have a particular question on homework or about a comment in the textbook, she is pretty smooth about answering it. The TA graded homework somewhat roughly but that's to be expected given the upper level nature of the course. The real thing she provides is that her reviews are almost essentially the exam itself. If you can do confidently finish the reviews for each exam, they will more than prepare you for the exam. Additionally, she's very lenient about the nature of proofs, where as long as you can explain reason even without being rigorous, you can get a lot of the partial credit for each problem. This is enhanced even more by the fact that she has 10 extra points for midterms, giving even more Leiway. The means on the first midterms for our quarter are at least 80%, so this made 410 a much more bearable experience for me. TL;DR Lei Chen for 410 is a very solid option and it wouldn't be bad to try taking her for this course.
Lei Chen
MATH410

Expecting a B-
Anonymous
12/20/2021
A little disorganized in lectures, so there is maybe a 30% chance you will not know what she is talking about in class. She always answers questions, so if you are confused ask her a question. Her office hours are much more helpful than the average professors office hours. The homework's are pretty difficult, but as long as you can do her exam reviews, the tests will not be hard at all. She genuinely does not want anyone to fail the course. Her whole motto is that MATH410 is for learning, not failing so as long as you can show that you have learned material, you will pass. The 10% curve at the end was also helpful. Not the best, but far from the worst.