Took his summer class. Math has never been my favorite subject, but with his teaching I was able to understand the material. And Professor Cho is very kind too. Thank you!

Tough concepts but the exams are very similar, some of which are exactly the same, to the examples given in class. Gave us very generous curves in the end.

very nice in grading and exams

Very nice professor, grading is very generous.

Amazing lectures, very accessible during office hours. Easy A.

You have to go to class, because the entire course is based on his lectures and he will give you hints about the problems on the midterms and finals. As long as you listen in class and do the practice tests, you know exactly what will be on each test. Some of my friends in the class didn't like his lecture style, but I really enjoyed it :))

Professor Cho is overall a decent professor, but he used to go on tangents about math concepts that were although interesting, not relevant if you are not a mathematics major. I think the grading on his exams were pretty fair, but I did most of my learning from my TA in section.

Professor Cho was just terrible. He is a terrible lecturer. He does examples before explaining the methods so you just sit there confused for 5 minutes before actually learning what he did. He was even worse at being online - he cannot use zoom. He is very quiet and passive when speaking like he doesn't know what he is talking about.

Professor Gunhee is helpful and willing to clearify everything in his classes and office hours. Our grade includes 2 mids, 1 final and 7 hws, but the lowest 3 will be dropped. However, I strongly recommend finishing all hws since questions in mids and final all resemble hw questions. Do everything assigned (literally hws), and you will be fine.