Current instructor
Original student reviews · all captured dates
Professor Martell I the best professor I have had at UW-Madison by FAR. He genuinely cares about making connections with his students while also prioritizing our success in his class. I HIGHLY recommend attending his lectures and making use of his office hours!Rate My Professors ↗
If you have the privilege of Dr. Martell teaching your semester, TAKE HIS CLASS. He makes complicated, advanced topics feel simple and understandable. Dr. Martel takes pauses during his lectures for students to ask questions, which deeply enriches the class and calls on students by name, even those in the back! He truly cares beyond the classroom.Rate My Professors ↗
I love his lectures! He makes ochem easier to understand and is completely enthusiastic about teaching. Importantly, he encourages questions and is so delighted when people ask questions that it creates such an engaging class.Rate My Professors ↗
Willing to help students! He tries to break down ochem into something easy. I know a lot of people recommend Esselman but I actually prefer Martell due to the slower pace he goes at during lecture (and you don't fall behind).Rate My Professors ↗
Professor Martell is the boyRate My Professors ↗
Professor Martell is one of the best professors I've had at UW-Madison! He explains mechanisms really well and there are very little misconceptions in his lectures. He always asked people's names, and often remembered them, when they asked a question, which shows how much he cares about his students. Highly recommend!!Rate My Professors ↗
Personal experiences, not a representative survey. Profile matching and captured coverage are shown in the source details.
CHEMICAL BIOLOGY covers the chemistry and biology of macromolecules and applies organic chemistry to cell biology and biomedicine.
Offering recorded · Fall 2026
Recent recorded grades — Fall 2025: 3.93 GPA, 100.0% A/AB (n=30 letter grades).
historical GPA · grades
Fall 2022–Fall 2025CHEM 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 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=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 — Spring 2023: 4.00 GPA, 100.0% A/AB (n=9 letter grades); Fall 2023: 4.00 GPA, 100.0% A/AB (n=6 letter grades); Spring 2024: 3.71 GPA, 85.7% A/AB (n=7 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.
{
"instructor_uid": "instructor_49dfbc2e031d2eecabea7766",
"source": "enrollment",
"source_instructor_id": "jdmartell",
"identity_basis": "netid",
"identity_status": "source_identified",
"name": "Jeffrey Martell",
"email": "JDMARTELL@WISC.EDU",
"first_observed_at": "2026-09-07 15:55:43.033547+00:00",
"last_observed_at": "2026-09-07 15:55:43.033547+00:00",
"ratings": {
"review_count": 16,
"quality": 4.94,
"difficulty": 3.69,
"quality_count": 16,
"difficulty_count": 16,
"profile_id": "rmp:2687490",
"source_url": "https://www.ratemyprofessors.com/professor/2687490",
"match_basis": "exact_name",
"observed_at": "2026-09-07 16:33:40.396990+00:00",
"courses": {
"course_daf4a0053696c0e96c07064d": {
"review_count": 16,
"quality": 4.94,
"difficulty": 3.69,
"quality_count": 16,
"difficulty_count": 16
}
},
"bayesian_quality": 4.228714324192554,
"prior_mean": 3.6596857835465957,
"prior_weight": 20
},
"current": true,
"courses": [
{
"course_uid": "course_2913394fa17f744c9ca18d4b",
"course_id": "CHEM 980",
"title": "SEMINAR: REVIEW OF CURRENT RESEARCH",
"credits_min": 1,
"credits_max": 1,
"gpa": 3.992
},
{
"course_uid": "course_4a49f7e5e0f126c4d0a2ad0b",
"course_id": "CHEM 299",
"title": "DIRECTED STUDY",
"credits_min": 1,
"credits_max": 4,
"gpa": 3.945
},
{
"course_uid": "course_7ab19b3ab2ed37cdd3b362e3",
"course_id": "BIOCHEM/CHEM 704",
"title": "CHEMICAL BIOLOGY",
"credits_min": 3,
"credits_max": 3,
"gpa": 3.673
},
{
"course_uid": "course_b3d52f1bb0698e502fda7d1c",
"course_id": "CHEM 691",
"title": "SENIOR THESIS",
"credits_min": 2,
"credits_max": 6,
"gpa": null
},
{
"course_uid": "course_bb4dd399ae999f41d21aab05",
"course_id": "CHEM 681",
"title": "SENIOR HONORS THESIS",
"credits_min": 2,
"credits_max": 4,
"gpa": null
},
{
"course_uid": "course_c2f22eab79dc18953ecf833e",
"course_id": "CHEM 990",
"title": "RESEARCH",
"credits_min": 1,
"credits_max": 15,
"gpa": null
},
{
"course_uid": "course_fc7dc844a4fe9d3c11f4e103",
"course_id": "CHEM 699",
"title": "DIRECTED STUDY",
"credits_min": 1,
"credits_max": 6,
"gpa": 3.968
}
],
"revision": "e243353dcb7d79b7247ced91d69443ef4c2a6349",
"instructor_url": "/instructors/JEFFREY_MARTELL"
}