The class is straightforward. No grading homework. Easy two weekly quizzes. Easy Midterms. Take Freitag for 32A. You'll enjoy Mathematics.

As someone who doesn't think math comes "naturally" to her, this course was not absolutely impossible, but did require a lot of personal effort. The midterms are very similar to book problems, but could be ones that were not assigned in class. The final was much more conceptual, so try going to office hours to gain some understanding. I stopped attending lectures when the professor spent all 50 minutes explaining proofs that never came on the exams, but definitely did lose some conceptual understanding because of this.

I naively thought Freitag was a good lecturer in the first two weeks and switched to his lecture from another one. However, his lectures began to collapse. Literally collapse. He started to make mistakes in a rate about 20 times per lecture, making people believe that he didn't prepare for lectures at all. He often talked about long proofs that didn't help students understand the materials. A lot of time during his lectures I can see students look at their computers or textbooks while he is talking to himself.

It is true that his midterms are easy and I got almost perfect scores on both of them. But it has little to do with his lectures! I mainly went over the textbook frequently and tried hard to understand every homework problem by myself. He doesn't collect homework, but his quizzes are kind of hard. If you comprehend concepts in the textbook and understand problems his quizzes, you should be fine on exams.

Again, his lectures are terrible and I know that students who go to lectures (some never do after a week or two) feel mostly the same way as I do because I talked with them during or after lectures. If you have good self-study abilities, take him, but don't expect to learn anything interesting. If you want to have a good professor who knows exactly what he or she is doing, you will find yourself lost in Freitag's class.