Current instructor
Original student reviews · all captured dates
Professor Yoon is one of the best professors I have ever had. He is an incredibly passionate, bright person who managed to make a notoriously difficult class into one of my favorites. He is very active on piazza and gives lots of opportunities for practice which is super important for a course like this. I wish every prof was like him.Rate My Professors ↗
I wish Tehshik ran the entire undergrad chemistry department! He is a clear communicator, empathetic to the student experience, and makes the course accessible and fair. He points out areas of organic chemistry that are relevant to life and other science disciplines.Rate My Professors ↗
TPY has been my favorite professor thus far at UW. He was always very clear on what he expected us to know, gave great problem sets, and genuinely cared about his students. Yes, the content was very difficult, but he never downplayed the difficulty and prepared us accordingly for it.Rate My Professors ↗
TPY is by far my favorite professor I've ever had at UW-Madison. He is clearly very passionate in what he teaches, and made me excited to come to an ochem lecture (unthinkable, right?). He is very intelligent and explains everything super clearly. I would recommend him to anyone taking chem 345, though I believe he only teaches in the fall :(.Rate My Professors ↗
He has so much passion for whatever he is teaching. I don't know how there could be a better professor for Ochem 345! I hope to have him again for future classes.Rate My Professors ↗
Professor Yoon is arguably THE best chemistry professor at UW-Madison. He made organic chemistry interesting and engaging. He also was extremely down to earth and sweet. His grading criteria is very fair and never out of the ordinary. He provides lots of practice problems, which are crucial to performing well in the course.Rate My Professors ↗
Personal experiences, not a representative survey. Profile matching and captured coverage are shown in the source details.
CHEM 299 is a directed study course involving a mentored research project arranged with a faculty member.
Offering recorded · Fall 2026
Recent recorded grades — Spring 2022: 4.00 GPA, 100.0% A/AB (n=1 letter grades).
historical GPA · grades
Spring 2022–Spring 2022 · limited sampleCHEM 681 is a mentored research course for students completing a thesis in an Honors program.
Offering recorded · Fall 2026
No recorded grade history
CHEM 691 is a senior thesis course involving mentored research for students completing their senior thesis.
Offering recorded · Fall 2026
No recorded grade history
CHEM 699 is a directed study course involving an advanced mentored research project arranged with a faculty member.
Offering recorded · Fall 2026
Recent recorded grades — Spring 2022: 4.00 GPA, 100.0% A/AB (n=3 letter grades).
historical GPA · grades
Spring 2022–Spring 2026CHEM 980 is a graduate-level seminar where students engage in research discussions facilitated by faculty within their research group.
Offering recorded · Fall 2026
Recent recorded grades — Spring 2023: 4.00 GPA, 100.0% A/AB (n=7 letter grades); Fall 2023: 4.00 GPA, 100.0% A/AB (n=7 letter grades); Spring 2024: 4.00 GPA, 100.0% A/AB (n=8 letter grades).
historical GPA · grades
Fall 2022–Spring 2026CHEM 990 is a research course where students conduct supervised research projects with individual faculty members.
Offering recorded · Fall 2026
No recorded grade history
Teaching history may be incomplete. Course pages contain course-specific feedback and citations.
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