I think Professor Wu is a good professor but his exams are designed to make students fail unless they have written down many problems from their homeworks on the allowed cheat sheet. The only way to get good grades on these exams is if you do this because otherwise the computations on the exam take more time than allotted.

If you haven't taken Calculus AB in high school, you will struggle with this class. The professor moves extremely fast and makes topics more complicated than need be. The workload is very manageable with only 2 questions a week, but if you want to do well you need to complete the entirety of the homework even the questions not assigned. You are allowed a paper front and back for both the midterms and the final so that will save you, as all the problems on the midterms are from the homeworks. It is a manageable class because you know that the problems on the exams will all be from the homework and you can simply copy every problem down, but the actual learning of the content is extremely difficult.

If you have the option to take another professor for 31A, please do it. I switched majors because this class made me hate math so much. He teaches his lectures quite literally at the speed of light and pauses for 0.0001 seconds when asked if we have questions. I went to every 8 am lecture and tried my best to understand the content. I did decent on the homework and the midterm but badly on the final so my grade plummeted. His exams are entirely based on the homework, practice exams, and lecture questions, and even tells you exactly where he gets them from, so I would recommend looking at those in preparation for the exam. Make sure to listen at the beginning of the course, because if not, you will be really confused by the end. Office hours were helpful but extremely crowded. He's a really nice guy but the class was so poorly taught and I would recommend you take another professor for 31A if you have the chance, especially if you are not great at math. If you are naturally good at math, though, and willing to teach yourself a large portion of the content if needed, then taking him would be fine for you.

As someone who had not taken any calc classes in high school, this course was EXTREMELY difficult for me. Wu's style of teaching was 10% explaining and 90% rushing through practice problems. He records his lectures and I found that watching them at your own pace was more beneficial than being in class.

The tests consisted of the hardest problems possible taken from worksheets. Wu lets you have a cheat sheet on the MT/final so I would recommend that you just shove in as many HW/class problems as possible on the sheet. He doesn't curve most exams despite students doing terrible on them. I will admit I could have put more effort in the class, however, I found it not worth my time/frustration and I would recommend avoiding Wu as a professor.

I was very frustrated with the fact that I had friends who completed 31A just a quarter before me and genuinely had no clue how to even help me with my 31A homework. The problems were very complex and reaching out for help from people in 32B they had no clue to how to go about solving these insanely niche and complex problems for the course. None of the further-level math builds upon any of these complex questions he would give us.

There was no textbook. The class consisted of one homework assignment each week, 2 midterms, and a final. Professor Wu was adaptable and did a lot of examples in class. He also would go over homework questions in office hours. The midterm and final questions were based on the homework. It was very easy for people who had taken calculus before, and still manageable for those who did not take calculus in high school (as I hadn't).

Professor Wu's lecturing style was a bit rough at the beginning of the quarter, but he did have an anonymous Google Form where he accepted feedback from students about this particular class. I highly, HIGHLY suggest going to Professor Wu's office hours. At least for our quarter, he did not shy away from answering homework problems directly from the sheets he has given us. His office hours is the perfect way to ask for help and they helped me personally get better at understanding his style of midterms. For the midterms, he didn't allow us to use a "cheat" sheet but on the final we were allowed one piece of paper for reference. All of the questions on the tests are directly from the lecture notes, lecture examples, and homework sheets. I highly recommend doing the extra hw problems that are not required because those tend to show up on the exams. Overall, the grading scheme is pretty fair. If you were stuck with this professor as your last resort, you should be fine. He improves as the class progresses. You can definitely tell he knows what he is teaching based on how often he emphasizes examples and theorems. If you've taken Calculus AB before, this class should be review. If you haven't, I can totally see where this class can seem confusing. Just go to office hours. They are the best.

Not sure why Wu has so many negative reviews. I think his class was great! He may need some improvement in the teaching department, but he’s a really nice teacher and friendly overall.
Regarding his teaching and lecture, he’s thorough and very formal; he doesn’t give a lot of shortcuts. He’s easy to ask for clarification in lecture, though. For lecture, he posts the entirety of his notes. To do well in the class, I recommend going over these, especially since the examples there are often referenced on the midterm and final. If you’re lucky, you’ll recognize a problem from this (or homework) and the tests will be easy.
Speaking of homework, he assigns a few (2-3) required problems, but many other optional questions. You should do the optional questions to do well on the midterm and final. Homework is worth around a quarter of your grade. If you have any questions about the homework you can ask on Piazza, and he usually responds pretty quickly. The TA’s such as Chang give the homework solutions for most of them. Wu doesn’t give solutions for the homework.
He doesn’t have tests and quizzes, only two midterms and a final. For these, they’re composed entirely from the questions of homework and lecture notes. The midterms and final are cumulative.
For grading, he grades to your benefit. There are two grading schemes, and he will choose the one that results in the highest grade for you.
In sum, I would recommend this teacher if you’re willing to work hard.

This was one of the hardest classes I have taken. I did not take AP Calc in high school and I think that was part of my downfall. The professor made the simplest things the most confusing and even those who I knew who did take AP Calc were struggling. The midterms and finals are all questions that were on the homework, which means for every single problem sheet you have to answer every single question without a real answer key. Jeremy Wu never gave an answer sheet to the entire homeworks, but William Chang was amazing and used his free-time to make his own answer sheet. Of course without a real answer sheet from the professor, the hardest questions from these sheets were always on the tests. The final was good because he allowed us a notebook paper sized cheat sheet, but of course he used the hardest questions from homeworks and lectures. The only thing that saved my grade was the fact that we were allowed to drop our lowest midterm which meant the final had to be graded at a higher weight. Make sure you actually go to lectures because its not the same as the recorded ones he posts, and make sure you review the lecture problem examples and do every single homework problem to be successful.

I must note that, having never taken calculus before, this course proved to be quite challenging for me (leading me to frequent the math tutoring center). Hence, if you are not prepared to invest the necessary effort and time, I would not recommend this course.Jeremy started the quarter as a challenging professor, but after receiving feedback, he made significant improvements to his teaching style. I highly recommend attending all his office hours, where he drops hints about test content that won't be posted elsewhere. The weekly homework only includes two mandatory problems, with numerous optional ones available. I suggest doing the optional problems, as midterm and final questions are drawn from both homework and lecture notes. Fortunately, all lectures are recorded, which is a plus for an 8 am class. Having never taken calculus before, this course proved to be quite challenging for me, I had to attended almost every office hour and additional discussion sessions. Hence, if you are not prepared to invest the necessary effort and time, I would not recommend this course.