I was placed into his class because the other sections were full and was a little nervous due to the other rate my professor ratings. However! Geller is my favorite teacher at UCSB so far, even as someone who isn't fond of physics. You will succeed if you understand problems from HW, textbook, and assigned practice problems (not rote memory).

His lectures are all conceptual and have nothing to do with calculations. After asking friends, I heard a majority of his questions are mathematical-based. In addition to his teaching, he also does not post any resources. His notes are from a student, not himself. And he does not provide any videos of himself explaining those mathematical problems.

This man is a king. No exams or final this quarter just quizzes and homework. Although online, lectures are as interesting as they are helpful. Geller is not only an extremely capable lecturer, but is overall just a nice, cool guy who cares about his students' success. I could not recommend him more, the best professor I've had at UCSB.

Nobody enjoyed this class at all. Long and boring lectures that are extremely off-topic. Barely any material is actually covered, only broad and off-topic discussions. Lots of "rambling" in a sense. Class was mostly empty. The final was extremely difficult and the average was very low compared to him praising 6C and saying how easy it was vs 6A & B

Geller is genuinely a horrible professor. Although you can tell he knows a lot about the topics and wants the students to be interested, his lectures are horrible. All he talks about is conceptual ideas when the exams were all math problems. Basically had to teach myself everything for the midterm and final. Do not take this class with him.

He's great, class was terrible.