course
Calculus IIIS/IVA

Apr 2021

Hmm I agree with the previous reviews that her class is pretty easy and manageable. In the beginning half of calc 3 tho, i was super confused with the content going on in the class. She would go over the topics for 20ish minutes and then place us into breakout rooms, and in every single breakout room i've been in, everyone had no idea what we were doing. This was when we were learning about 3d surfaces, which i found really hard so i had to watch youtube videos and do extra work outside of class. However, when we got to the second half of the course (partial derivatives) the class became super easy and clear. I understood her content without having to read the textbook. Her exams are also pretty fair too and very similar to the practice exams she gives. Overall, I think it was a pretty good class, it's just the beginning half was definitely a struggle. Oh, and her personality is super interesting and kind of quirky. She will definitely make your class very engaging. There were definitely times I was scared of her though because of how blunt she could be.

Mar 2021

Abolish the monarchy and replace it with Queen Inbar!!!!!!!!

Feb 2021

No. Stop. You know that meme of a car swerving off the highway to a byroad? I have never thought it a more apposite metaphor for a decision I should've made. Is he clever? Sure. And I like clever people. They make very good researchers, and occasionally, good teachers. Sitting here in quiet, simmering regret, I wish I knew before the semester that this clever person is the last person on Earth that I ever would've wanted to be my Calc professor. Why? I like Calc immensely, and I don't mind professors who can't teach but who at least try their best to. (I mean, learning is fundamentally a solitary experience.) The problem is that Savin isn't just a horrible Calc professor--he makes absolutely no effort to modify his teaching and grading methods to offset his lack of teaching skills. All that to say: If you're stuck with him, look up a certain individual on YouTube by the name of "Professor Leonard" and take notes on his (PL's) lectures, and make sure you do the practice exams Savin posts a day before the exam to assess if you'll do okay on his exams. Oh, and don't bother with the last questions on his exam unless you're confident you've aced the actual test questions (Q 1-4 on the midterms and Q 1-8 on the final). That'll save you some time and boost your exam grades. Good luck.

Feb 2021

Give queen inbar a diamond nugget!

Jan 2021

How she doesn't have a gold nugget is beyond me. Excellent lecturer and significantly more competent than other professors in the math department. Chill grader and is clearly out to teach rather than a trick.

Jan 2021

Calc III with Inbar Klang was great. ONline format was a bit learn on your own and then she added her own commentary during class. Attendance not required. PSETs weren't too difficult. The TAs were meh. Both midterms were fairly easy and you could either do a final project or take a cumulative final at the end. Take her!

Apr 2015

oh. my. god. by any means do not take this dudes class. I just....i can't even explain to you the degree of...oh my god just no. Listen, i have no idea what any of these other reviews are talking about, Xiangwen sucks at teaching. You will learn zero. Nada. Objectively speaking, as diplomatic as I can say this...you will not understand anything that is said or written. If the words spoken from his mouth could be written into words it would be the sloppiest most incoherent handwriting ever conceived. Highly unorganized in every matter there is. The board is an absolute mess 3 minutes into class and he will take no time to elaborate. He also does a lot of *writes really long equation on the board* says "okay this is the type of problem that will be on the midterm." *writes the answer right below it* "This is the answer but uhhh im not gonna show you guys how to do it you can figure it out yourselves" You won't learn shit.

Oct 2003

I might as well weigh in on the positive side. I liked Dr. Goldfeld a lot. I don't really care that he was not the most charismatic math teacher I've ever had. I don't care that he did not inspire me to become a math major--You can't expect that from every professor. What distinguishes Dr. Goldfeld is that he is clear and to the point, as many other reviewers have pointed out. I don't even care that he f***ed up some of the computations (he NEVER used a calculator), or didn't always complete them after there was absolutely no mystery left about what you had to do to finish the problem. For example, he would sometimes just set up the definite integral and leave it at that, saying, "I will not finish this computation because it is elementary." It WAS elementary. Anyone who had done the previous semester of calc could do the integral. It would just be a waste of time to keep going on with it. So I actually appreciated that he would move on to more substantial stuff. I would agree with other reviewers that his tests were neither too easy nor too diffiicult, but fair overall. In any case, he would curve to a B+ median grade. The homework was definitely substantial, and could take anywhere from 5 to 10 hours per week, but I got used to it. It was a necessary evil. Without doing a lot of problems, there's no way to really get a handle on mutli-variable and vector calculus. I also want to add that I totally agree with what the other reviewer said about going to the lectures when he gets to Complex Analysis because the textbook was totally useless. Solid prof.

Sep 2003

A very straightfoward teacher. He explained the material in very simple terms, illustrating concepts clearly with numerous examples. So clearly, that it sometimes seemed as if he was teaching to freshmen in highschool. In some ways this might not be the best thing for grades as the class managed to do very well on his midterms (A range was 40/50 on 2 of the mditerms and 45/50 on one). He also allowed the entire class to use calculators on the final and on the midterms. Professor Goldfeld is a good choice for IIIS/IVA.

Sep 2003

Prof. Goldfeld is an awful professor. When doing problems on the board, he did all the computation in his head so it was virtually impossible to follow. He mocked people who asked "stupid" questions, when they were often concepts he had failed to explain. If I asked him a question after class, he yelled to speak to the TAs or go to the math help room. Not once was he willing to help me himself. Don't expect a syllabus online. You'll have to rely on a random and inaccurate syllabus from a different prof. "His" practice exams were nearly impossible to find and were not at all similar to his exams. All in all, his lack of care for students and teaching made for a semester of absolute misery.

Sep 2003

I cannot BELIEVE that anyone would write a negative review of this sweet, quiet man. Professor Goldfeld may not be brimming with energy and hype, but he knows his mathematics and comes across as an affable, albeit absent-minded, grandfatherly type. Okay, so he could use an extra dose of coffee in the mornings. Don't crucify him for it! And, yes - he IS a cutie. In an unconventional way. His voice - his scratchy New York accent - is the logical compelement of his face. He has very sweet eyes; appearances don't deceive in this case.

May 2003

He is definately a good professor. He teaches in a very straightforward way, and gives a lot of (easy) examples in class which make the material seem easy. You can learn everything by just reading the book and not going to class, but the material will seem easier if you goto lectures. I definately suggest going to class when you learn complex numbers because the online "book" is corny, dumb, and doesn't explain stuff well. Tests are pretty straightforward and there's very few surprizes. He drops the lowest of the 3 tests. I would definately recommend choosing him for math.

May 2003

Dorian Goldfeld is completely uninspirational. If you love math and want to get excited about it, Dorian is not for you. However, for the rest of us, he gets the job done. His explanations are as simple as he could make them. He goes over the necessary problem solving techniques and, for the most part, leaves it at that. He probably prooves roughly half or maybe a little more of the theorems that are the content of the course. If you want to get through Calculus relatively painlessly, I think he's a good choice: the tests are fair and the lectures don't leave you feeling lost. Sitting through the lectures can be painful, though, because Dorian Goldfeld doesn't seem to care at all. He will make extremely simple mistakes in his lecture, but they are so obvious most in the class notice and quickly correct him. Another downside to his style is that he doesn't put in the effort to finish many computations. Finally, although I can't describe exactly why, Dorian Goldfeld is a cutie.

May 2003

Mr. Friedman understands the material very well and does a pretty good job explaining it, but he moves very fast and once he's finished writing something he stands in front of it so you can't see it and then erases it. He's extremely arrogant and isn't particularly helpful with outside-of-class questions, and his tests are totally unpredictable; our first midterm was very easy, the second one much harder and the final seemed to come out of nowhere. Case in point, if you're a math person who wants a hardcore professor for multi-variable, you might like him. I thought I was a math person until I had Friedman.

May 2003

He's a very clear, concise teacher. He explains everything well. I've taken a whole bunch of math classes and this is the first time i've understood any proofs the professor was showing on the board, mainly cause of his clear explanations. But don't worry about proofs, he gets to the bottom line, the formula you need to know and tells you that is all you need to know. His tests are pretty easy and straight forward, but HW was graded like a bitch. One downside is that while he may be nice in class, he doesn't give a rats ass about who you are. He'll never ask for your name or anything like that, but I suppose that's normal.

May 2003

I picked this class thinking to myself, "Anyone named Dorian must be wonderful." My logic proved ridiculous. He gives long and challenging homeworks which end up being only 10% of your grade and a whole lot of effort. His lectures are incoherent because he makes a ton of errors which he covers up by saying, "Well, this should be equal to that previous thing." A friend of mine went to his office hours once and he said, "I thought the door was locked." It's your office hour! His tests aren't impossible but the class content is difficult, you'd be better off with a good teacher.

May 2003

Great teacher, explains everything clearly, has a sense of humor. Definitely one one of the best math teachers I've had

May 2002

The guy is a Math Genius! This semester (Spring 2002) was his first teaching this course. Said on the first day that he doesn't teach from the book - a plus right away (gives you a reason to want to go to lecture - although the book is still enough). English isn't bad, and his wild accent will get laughs at first - "What do you doooooooo" -(eventually I didn't notice anymore). Kept the material as basic as possible. Very approachable. Answered everyone's questions. Problem is he doesn't teach many classes........... Catch him when you can.

May 2002

Zhang is brilliant. His English, on the other hand, is not so much. After a few lectures of laughing at his English, however, you realize that the man can definately teach. Very well-prepared for class (without even using the book; he commented at the beginning of the semester about the text: "Very heavy book. I no bring to class.") and VERY knowledgeable about calculus and math in general. Not only is he flexible and very approachable outside of class, he cracks jokes and provides amusing anecdotes (in his broken and heavily accented English, this can be very funny). I loved this class, mostly because the entertaining and knowledgeable professor made the material come to life.

Jan 2002

Whoever wrote that earlier review about testicle jokes is a dirty liar. He speaks english clearly though, a rare bonus. Nothing special, but not horrible either.

Jan 2002

This professor doesnÂ’t care about making sure that the students understand the material. He goes through the material really fast. He throws the material at you and expects you to understand. When students ask him questions in class, he does not explain so that we can understand. His exams are mostly theoretical stuff and he gives no practice exam before the midterm....Takes him forever to respond to you via email. If you can, take Profesor Kofman...he is a much better professor. Morgan should stay as an administrator-- he just canÂ’t teach.

Dec 2001

Morgan is a drone who merely regurgitates the exact examples and problems from the sections he is covering in the book, minus legible writing and helpful diagrams. His notes end up being a myriad of examples without the explanation of the actual mathematical concepts. Bring an arsenal of stimulants if you're planning on staying awake in his lectures.