His test are really hard and he assumes you know a lot of physics already.

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Great professor. He knows his stuff well. If you goto lectures and take good notes his tests are easy. Finals can be very tough sometimes though. Make sure you understand concepts well, not just knowing how to approach certain hw problems.

a classic kiss-ass instructor. never shows up in ta meetings, very secretive about what he's covering in lectures. students like him because exams are easy for those who know the stuff, and he curves liberally at the end. (con't)

Is interesting and amusing, yet doesn't really cover much in class...hope you enjoy learning physics on your own...

Took this in HS so maybe I'm biased. Material's pretty simple, he doesn't seem to cover as much as other professors.

Class is interesting, class is cake if you have had AP physics in HS.

I love him

Very entertaining but you have to study on your own or visit your TA ALOT

Doesn't teach well at all relies on your own studying.

not clear at all

students get out way less parepared than those taught by other profs.

very clear, entertaining, didn't cover much

Einstien hair, hilarious, best physics teacher, funny, entertaining

Enthusiastic, clear, original, young, and knows his physics

Geller is a good lecturer but PHYSICS IS HARD. Test averages are pretty low, but Geller always sets reasonable curves to ensure the success of his students. The online homework is tedious, but a big grade booster and good for practice. Downside to taking Geller is you don't know what to expect on exams since he only has 5 practice questions total.

Class average for the Midterm and Final were 57%. Multiple students emailed him and his only reply was "you should try harder". The same class with Freund had an 85% average.

fun lectures that are both interesting and informative. cool demos. focuses more on the concepts rather than how to solve a problem in lectures, but it works b/c the textbook. tests are reasonably difficult. only dropped due to a medical emergency and not Geller himself

On your next pass time look at Geller vs. Freund on gold. Freund's class will likely already be full. Geller's will have 300 open seats. That says enough, doesn't it.

Bro loves Achieve, and while it's irritating, I learned more from Achieve than I did from him. You gotta teach yourself. He's passionate, but lectures are highly conceptual and fairly disorganized, with very few examples. Tests are all MCQ and mostly fair; you just have to practice. CLAS helped a lot, and so did the practice problems and exams

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).

Not very good at teaching, but I was fine because I took physics in high school. The content is essentially the same as AP Physics 1. There's also a few homework assignments due every week and they're graded by accuracy. Start learning the content before the quarter starts and be prepared to teach yourself almost everything.

Conflicting feelings. Lectures are pretty useless, purely conceptual. Homework is a large percent of your grade, so failing is pretty impossible, but that's offset by the low test averages (71, 60, 57). These were his highest averages ever, according to him. You have homework due every day. Take Freud if you can't take a mild hit to your GPA.