Very very smart guy; however, his lectures are average at best. Moves quite fast, and there's an overload of information that doesn't get explained super well. Often gets distracted by his own research interests and takes up lots of lecture time on this, which is interesting but not necessary helpful for exams. Exams are impossibly difficult.Rate My Professors ↗
Current instructor
Shannon Stahl
What students say
Original student reviews · all captured dates
Professor Stahl is okay at lecturing. He likes to go on tangents quite a bit, and it is hard to follow sometimes. There is a lot of material to understand. His way of teaching is not very effective at helping you to understand it. He strives for the class to average a 50% on exams. They are normally pretty hard exams. Extremely intelligent guy.Rate My Professors ↗
Shannon is extremely smart and is fairly decent at coming down to the student level when teaching. He does talk very fast and can be hard to follow in lecture sometimes. Exams are toughRate My Professors ↗
He dumps a lot of material on you at once, but he breaks it up with fun life advice tangents. You have to pay pretty close attention during lecture to get anything out of them. His exams are a lot of synthesis - both compounds and class material. You kind of learn while taking them. The class is rough, but Stahl is cool.Rate My Professors ↗
Very intelligent, with a knack for getting students excited about science. But along with this, exams are highly challenging and really test not just how well you know the material but also how well you can integrate and expand upon it.Rate My Professors ↗
He's really smart.Rate My Professors ↗
Personal experiences, not a representative survey. Profile matching and captured coverage are shown in the source details.
Classes with Shannon Stahl
Master's Research or Thesis
1–9 creditsCBE 790 is a Master's research or thesis course involving directed study projects arranged with an instructor.
Offering recorded · Fall 2026
No recorded grade history
Pre-dissertator's Research
1–9 creditsCBE 890 is a directed study course for pre-dissertator research projects arranged with an instructor.
Offering recorded · Fall 2026
No recorded grade history
Directed Study
1–4 creditsCHEM 299 is a directed study course involving a mentored research project arranged with a faculty member.
Offering recorded · Fall 2026
historical GPA · grades
Spring 2022–Spring 2022 · limited sampleOrganic Chemistry I
3 creditsOrganic Chemistry I covers molecular structure, bonding, and reactivity of common organic functional groups.
Offering recorded · Fall 2026
Shannon Stahl is described as a nice, well-prepared professor who explains material clearly and relates it to applications. Reviewers note he is usually interesting and willing to help outside of lecture, making him a good professor for the course.
historical GPA · grades
Spring 2022–Spring 2026Senior Honors Thesis
2–4 creditsCHEM 681 is a mentored research course for students completing a thesis in an Honors program.
Offering recorded · Fall 2026
No recorded grade history
Senior Honors Thesis
2–4 creditsCHEM 682 is a mentored research course for students completing a thesis in an Honors program.
Offering recorded · Fall 2026
historical GPA · grades
Spring 2022–Spring 2022 · limited sampleDirected Study
1–6 creditsCHEM 699 is a directed study course involving an advanced mentored research project arranged with a faculty member.
Offering recorded · Fall 2026
Recent recorded grades — Fall 2009: 3.92 GPA, 100.0% A/AB (n=6 letter grades); Spring 2019: 4.00 GPA, 100.0% A/AB (n=6 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 — Fall 2024: 4.00 GPA, 100.0% A/AB (n=6 letter grades); Spring 2025: 4.00 GPA, 100.0% A/AB (n=9 letter grades); Fall 2025: 4.00 GPA, 100.0% A/AB (n=8 letter grades).
historical GPA · grades
Fall 2022–Spring 2026Research
1–15 creditsCHEM 990 is a research course where students conduct supervised research projects with individual faculty members.
Offering recorded · Fall 2026
No recorded grade history
Recorded teaching history
Explore courses taught by this instructor →Browse recorded courses
| Term | Course | Title |
|---|---|---|
| Fall 2026 | CBE 790 | Master's Research or Thesis |
| Fall 2026 | CBE 890 | Pre-dissertator's Research |
| Fall 2026 | CHEM 299 | Directed Study |
| Fall 2026 | CHEM 343 | Organic Chemistry I |
| Fall 2026 | CHEM 681 | Senior Honors Thesis |
| Fall 2026 | CHEM 682 | Senior Honors Thesis |
| Fall 2026 | CHEM 699 | Directed Study |
| Fall 2026 | CHEM 980 | Seminar: Review of Current Research |
| Fall 2026 | CHEM 990 | Research |
Teaching history may be incomplete. Course pages contain course-specific feedback and citations.
Instructor identity & provenance
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