This is actually a review for Math 180... I totally agree with other reviews. Her lectures suck as the professor herself was not familiar with the material and made mistakes(sometimes even very stupid and trivial ones) all the time. At the end it seems like she was just explaining to herself, rather than to her students:)
But luckily the textbook is quite clear so if you are willing to read the book carefully, you shouldn't have any problem with understanding the class material.
As for her exams, I would say they were pretty fair. Around 60% of the problems were like basic application of concepts we learned in classes. The rest were proof problems which were not that impossible to do either.
Overall as long as you really studied the textbook and homework the class should be doable.

I took Hempel for Math 33B. She is the worst math professor I have had by far. She is rude, unorganized, and frankly I don't think she even knows the material. Don't take her. Just don't. Math 33B itself is not that hard, but Hempel failed as a professor. Here are some examples from our last class: She wouldn't work out the solution to a practice final problem because she was afraid she would mess it up. Or when we didn't finish going over the practice final because she wasted so much time being confused and flustered when ever we asked her questions. Someone asked if she could post the rest of the problems online or email them to us because we ran out of time to go over them. She said no, that we should know how to do this. Well I didn't. That sucked.

It's honestly difficult to express just how many ways Hempel failed me as a professor. The material in this class is generally less difficult and engaging than that of previous courses, but rather than go above and beyond and explore anything remotely interesting, she struggled just to teach the necessary material and even skipped sections because we were never on schedule. Her lectures were never engaging, and she often made multiple errors in each step of her calculations. I understand that it's easy to make algebraic mistakes, but how can you come to class so unprepared so often. It sometimes felt like the students had to teach her how to do things because she had so little grasp on why her calculations were failing. For these reasons, over half the class never attended lecture, but those who stayed only found her getting consistently sidetracked by random questions to the point that she would either not finish material or rush through it without fully explaining it. Even if her lectures somehow made no mistakes and stayed relatively on time, they were still so poorly organized and boring that it was impossible to get a good grasp on the material from them. Furthermore, from the structure of her exams, it almost felt like she had a tenuous grasp on the content. We studied concepts that involved partial fractions, integration by parts, complex eigenvalues, and many more in the homework, but, in the second midterm, 20% of the test was on the existence theorem, an idea that was not crucial to most of the concepts of unit two and was barely touched on in lecture. This class is filled with students who have made it through extremely difficult math, physics, and chemistry courses in the past, and it was a little insulting how easy the tests were, not to mention it will most likely force the class to be curved down which feels extremely unfair to everyone involved. On the last day of lecture, someone asked if she would post the rest of the lecture online since she was unable to finish it in class, but Nadja just said, "well, if you can't do this.." and shrugged. I don't think she deserves to be a professor here if she's unwilling to make even that slight effort to accommodate her students. I love math, and I have never enjoyed a math class less than this one.

Professor Hempel is one of the best instructors in the math department. She moves a little fast, but don't be afraid to ask questions. She's happy to help, and she answers questions very clearly.

This is the review for Math 33A, as the school is not giving the slot for writing review for her in 33A, I will have to do the review here. I'm an Engineering Major, I used to got straight A's, hopefully is the case for this class too. As for this class, she is really not good at all. She has a very wired tone and makes kind of a questioning tone when making a statement, which makes the lecture always sound really wired. Moreover, her lecture was all over the place, not organized at all. However, it's just a math class, you don't need any attendance and you just need to go to the sessions to take the quiz, just 5-10 mins and they are all very easy.
If your time cannot accommodate other sessions, just take her, but don't go to lectures. I would say only 40% of the people actually go to the lecture. lol.
Anyway, suggestions are go to the Khan Academy website, and they have the exact linear algebra course, which is a easier version of the class. You watch all the videos, do 1.25, 1.5 or 2X normal speed, cuz Khan speaks a little bit too slow for my brain. And do the HW she posted on the website, you are good to get an A.
As I am taking 5 classes in total this quarter, I basically finished the whole course in 2 days in week 10. Hopefully this works out for you guys.
别去她的课，讲得稀烂，我怎么说就怎么做，反正课很简单，好好做作业就可以保A.然后尽量别惹她，这个女人态度超差，感觉有点种族歧视。