Lectures weren't super useful, but it was still interesting sometimes if you could get over his accent. Textbook (I took the class before the switch to packets) was very useful and taught me everything. I recommend getting it anyways (Thomas' Calculus). Exams were identical to practice exams.Rate My Professors ↗
Historical instructor
YONG-GEUN OH
What students say
Original student reviews · all captured dates
Quality 2/5Difficulty 2/5
Quality 1/5Difficulty 4/5
Most certainly the worst professor I've ever had. I went to lecture the first two months but gave up after the first midterm. I actually did better teaching myself with the text book and watching online videos. If you have a choice, pick a different professor. You may think all the reviews are from jaded students, think again. This guy is bad news.Rate My Professors ↗
Quality 1/5Difficulty 5/5
Definitely the worst professor I've ever had. Lectures are very difficult to understand because he makes so many mistakes (TAs always had to correct him) and he goes on tangents quite often. (no pun intended) If you have the option, take someone else. If you don't have a choice, then skip lecture and read the book or work on problems with a tutor.Rate My Professors ↗
Quality 2/5Difficulty 4/5
Smart professor, but possibly too smart for this level of course. Received corrections multiple times during lecture because he was unsure what he was talking about. He also only taught at a level he could comprehend, not something that everyone could comprehend. The TA's provided for the discussions were either knowledgeable or dry teachers.Rate My Professors ↗
Quality 2/5Difficulty 4/5
Smart professor, but possibly too smart for this level of course. Received corrections multiple times during lecture because he was unsure what he was talking about. He also only taught at a level he could comprehend, not something that everyone could comprehend.Rate My Professors ↗
Quality 1/5Difficulty 5/5
If I could give a rating of zero, I would give Professor Oh that rating. Math was one of my favorite classes in high school but not any more. Oh's class is impossible. He is without doubt a smart guy. He just has no idea how to teach. His class is way more challenging than it should be simply because e is a horrible instructor.Rate My Professors ↗
Personal experiences, not a representative survey. Profile matching and captured coverage are shown in the source details.
Classes with YONG-GEUN OH
No teaching recorded in Fall 2026.
View last recorded teaching term →No courses match this selection. Try the full catalog or another term.
Recorded teaching history
Distinct courses recorded per term
Explore courses taught by this instructor →Browse recorded courses
| Term | Course | Title |
|---|---|---|
| Spring 2013 | MATH 856 | Topics in Differential Topology |
| Fall 2012 | MATH 222 | Calculus and Analytic Geometry 2 |
| Fall 2012 | MATH 761 | Differentiable Manifolds |
| Spring 2012 | MATH 990 | Reading and Research |
| Fall 2011 | MATH 340 | Elementary Matrix and Linear Algebra |
| Fall 2011 | MATH 751 | Introductory Topology I |
| Fall 2011 | MATH 990 | Reading and Research |
| Spring 2011 | MATH 234 | Calculus--functions of Several Variables |
| Spring 2011 | MATH 551 | Point-set Topology |
| Spring 2011 | MATH 990 | Reading and Research |
| Fall 2010 | MATH 856 | Topics in Differential Topology |
| Spring 2010 | MATH 234 | Calculus--functions of Several Variables |
| Spring 2010 | MATH 990 | Reading and Research |
| Fall 2009 | MATH 990 | Reading and Research |
| Spring 2009 | MATH 752 | Introductory Topology II |
| Fall 2008 | MATH 340 | Elementary Matrix and Linear Algebra |
| Fall 2008 | MATH 990 | Reading and Research |
| Spring 2008 | MATH 990 | Reading and Research |
| Fall 2007 | MATH 856 | Topics in Differential Topology |
| Fall 2007 | MATH 990 | Reading and Research |
| Spring 2007 | MATH 234 | Calculus--functions of Several Variables |
| Spring 2007 | MATH 856 | Topics in Differential Topology |
| Fall 2006 | MATH 951 | Seminar in Topology |
Teaching history may be incomplete. Course pages contain course-specific feedback and citations.
Instructor identity & provenance
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