Historical instructor

TEHSHIK YOON

Adjusted rating
RMP difficulty
captured reviews
About this rating

Raw average: 4.91/5 from 65 quality ratings. The adjusted rating blends this with the UW review average (3.66/5), weighted as 20 additional ratings. Smaller samples stay closer to that average. Each captured review is counted once in the prior; this does not correct who chooses to leave a review.

RMP profile ↗ · All captured review dates; profile matched by name.

What students say

Original student reviews · all captured dates

CHEM 345
Quality 5/5Difficulty 4/5
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.
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CHEM 345
Quality 5/5Difficulty 4/5
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.
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CHEM 345
Quality 5/5Difficulty 4/5
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.
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CHEM 345
Quality 5/5Difficulty 4/5
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 :(.
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CHEM 345
Quality 5/5Difficulty 4/5
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.
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CHEM 345
Quality 5/5Difficulty 3/5
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.
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Personal experiences, not a representative survey. Profile matching and captured coverage are shown in the source details.

Classes with TEHSHIK YOON

No teaching recorded in Fall 2026.

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No courses match this selection. Try the full catalog or another term.

Recorded teaching history

Distinct courses recorded per term

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Browse recorded courses
TermCourseTitle
Spring 2026CHEM 841Advanced Organic Chemistry
Spring 2026CHEM 980Seminar: Review of Current Research
Spring 2026CHEM 990Research
Fall 2025CHEM 699Directed Study
Fall 2025CHEM 901Seminar-teaching of Chemistry
Fall 2025CHEM 980Seminar: Review of Current Research
Fall 2025CHEM 990Research
Spring 2025CHEM 841Advanced Organic Chemistry
Spring 2025CHEM 980Seminar: Review of Current Research
Spring 2025CHEM 990Research
Fall 2024CHEM 699Directed Study
Fall 2024CHEM 901Seminar-teaching of Chemistry
Fall 2024CHEM 980Seminar: Review of Current Research
Fall 2024CHEM 990Research
Spring 2024CHEM 699Directed Study
Spring 2024CHEM 841Advanced Organic Chemistry
Spring 2024CHEM 980Seminar: Review of Current Research
Spring 2024CHEM 990Research
Fall 2023CHEM 345Organic Chemistry II
Fall 2023CHEM 699Directed Study
Fall 2023CHEM 980Seminar: Review of Current Research
Fall 2023CHEM 990Research
Spring 2023CHEM 699Directed Study
Spring 2023CHEM 841Advanced Organic Chemistry
Spring 2023CHEM 980Seminar: Review of Current Research
Spring 2023CHEM 990Research
Fall 2022CHEM 345Organic Chemistry II
Fall 2022CHEM 699Directed Study
Fall 2022CHEM 980Seminar: Review of Current Research
Fall 2022CHEM 990Research
Spring 2022CHEM 299Directed Study
Spring 2022CHEM 699Directed Study
Spring 2022CHEM 841Advanced Organic Chemistry
Spring 2022CHEM 990Research
Fall 2021CHEM 345Organic Chemistry II
Fall 2021CHEM 990Research
Fall 2020CHEM 345Organic Chemistry II
Fall 2020CHEM 699Directed Study
Fall 2020CHEM 990Research
Spring 2020CHEM 699Directed Study
Spring 2020CHEM 990Research
Fall 2019CHEM 699Directed Study
Fall 2019CHEM 990Research
Spring 2019CHEM 699Directed Study
Spring 2019CHEM 841Advanced Organic Chemistry
Spring 2019CHEM 990Research
Fall 2018CHEM 299Directed Study
Fall 2018CHEM 547Advanced Organic Chemistry
Fall 2018CHEM 699Directed Study
Fall 2018CHEM 990Research
Spring 2018CHEM 699Directed Study
Spring 2018CHEM 841Advanced Organic Chemistry
Spring 2018CHEM 990Research
Fall 2017CHEM 547Advanced Organic Chemistry
Fall 2017CHEM 699Directed Study
Fall 2017CHEM 990Research
Spring 2017CHEM 699Directed Study
Spring 2017CHEM 841Advanced Organic Chemistry
Spring 2017CHEM 990Research
Fall 2016CHEM 547Advanced Organic Chemistry
Fall 2016CHEM 699Directed Study
Fall 2016CHEM 990Research
Spring 2016CHEM 682Senior Honors Thesis
Spring 2016CHEM 699Directed Study
Spring 2016CHEM 841Advanced Organic Chemistry
Spring 2016CHEM 990Research
Fall 2015CHEM 547Advanced Organic Chemistry
Fall 2015CHEM 681Senior Honors Thesis
Fall 2015CHEM 699Directed Study
Fall 2015CHEM 990Research
Spring 2015CHEM 699Directed Study
Spring 2015CHEM 841Advanced Organic Chemistry
Spring 2015CHEM 990Research
Fall 2014CHEM 547Advanced Organic Chemistry
Fall 2014CHEM 699Directed Study
Fall 2014CHEM 990Research
Spring 2014CHEM 699Directed Study
Spring 2014CHEM 841Advanced Organic Chemistry
Spring 2014CHEM 990Research
Fall 2013CHEM 345Organic Chemistry II
Fall 2013CHEM 699Directed Study
Fall 2013CHEM 990Research
Spring 2013CHEM 699Directed Study
Spring 2013CHEM 990Research
Fall 2012CHEM 345Organic Chemistry II
Fall 2012CHEM 699Directed Study
Fall 2012CHEM 990Research
Spring 2012CHEM 699Directed Study
Spring 2012CHEM 843Advanced Organic Chemistry
Spring 2012CHEM 990Research
Fall 2011CHEM 345Organic Chemistry II
Fall 2011CHEM 699Directed Study
Fall 2011CHEM 990Research
Spring 2011CHEM 345Organic Chemistry II
Spring 2011CHEM 699Directed Study
Spring 2011CHEM 990Research
Fall 2010CHEM 345Organic Chemistry II
Fall 2010CHEM 699Directed Study
Fall 2010CHEM 990Research
Spring 2010CHEM 841Advanced Organic Chemistry

Teaching history may be incomplete. Course pages contain course-specific feedback and citations.

Instructor identity & provenance 
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