Current instructor

David Ehrlich

Adjusted rating
RMP difficulty
captured reviews
About this rating

Raw average: 3.00/5 from 3 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

ZOO523 · course not matched
Quality 2/5Difficulty 4/5
For much of the class he goes at a slower pace and explains well and the quizzes and practice exam are deceptively easy. However, the week before the exam he rushes through very dense material that is ultimately most of what the test is about and the test is much, much more difficult than what you were expecting. Needs to even it out more.
Rate My Professors ↗
ZOO523 · course not matched
Quality 4/5Difficulty 4/5
David is an amazing professor who simplified really complex material. Although his exam was the hardest out of the 3, it involved relatively little memorization and focused more on application. The in-class demos were useful, and lectures were light. Office hours were helpful for understanding potential exam questions, and he brought cookies!
Rate My Professors ↗
ZOO523 · course not matched
Quality 3/5Difficulty 4/5
Exams based on lectures so reading textbook is optional. He is a nice guy and does a decent job of teaching the material, which can be kind of hard depending on your background (if you have learned similar material in other classes youll be fine). However, his exams had all of the above and select all that apply questions, which i personally hate.
Rate My Professors ↗

Personal experiences, not a representative survey. Profile matching and captured coverage are shown in the source details.

Classes with David Ehrlich

ZOOLOGY 199

Directed Study

1–3 credits

Directed study or independent research where students experience hypothesis development and research through faculty mentorship.

Offering recorded · Spring 2027 · Sources

Sharon ThomaLauren Riters+6 more

No recorded grade history

ZOOLOGY 299

Directed Studies in Zoology

1–3 credits

Directed Studies in Zoology offers directed study or independent research where students experience hypothesis development and research through faculty mentorship.

Offering recorded · Spring 2027 · Sources

Recent recorded grades — Spring 2022: 4.00 GPA, 100.0% A/AB (n=2 letter grades).

Scott HartmanSharon Thoma+29 more

historical GPA · grades

Fall 2024–Spring 2026 · limited sample
ZOOLOGY 699

Directed Studies in Zoology

1–6 credits

Directed Studies in Zoology consists of selected research projects for juniors and seniors.

Offering recorded · Spring 2027 · Sources

Recent recorded grades — Spring 2025: 4.00 GPA, 100.0% A/AB (n=7 letter grades); Fall 2025: 4.00 GPA, 100.0% A/AB (n=6 letter grades); Spring 2026: 4.00 GPA, 100.0% A/AB (n=6 letter grades).

Scott HartmanKaren Strier+52 more

historical GPA · grades

Fall 2022–Spring 2026
ZOOLOGY 990

Research

1–9 credits

Advanced research in biology as part of graduate program requirements, arranged with mentoring faculty.

Offering recorded · Spring 2027 · Sources

Karen StrierJeff Hardin+39 more

No recorded grade history

Recorded teaching history

Distinct courses recorded per term

Explore courses taught by this instructor →
Browse recorded courses
TermCourseTitle
Spring 2027MOLBIOL 699Directed Studies in Molecular Biology
Spring 2027NTP 990Research and Thesis
Spring 2027ZOOLOGY 199Directed Study
Spring 2027ZOOLOGY 299Directed Studies in Zoology
Spring 2027ZOOLOGY 682Senior Honors Thesis
Spring 2027ZOOLOGY 692Senior Thesis
Spring 2027ZOOLOGY 699Directed Studies in Zoology
Spring 2027ZOOLOGY 962Seminar-ethology
Spring 2027ZOOLOGY 990Research
Fall 2026MOLBIOL 699Directed Studies in Molecular Biology
Fall 2026NTP 990Research and Thesis
Fall 2026PSYCH/ZOOLOGY 523Neurobiology
Fall 2026ZOOLOGY 299Directed Studies in Zoology
Fall 2026ZOOLOGY 681Senior Honors Thesis
Fall 2026ZOOLOGY 682Senior Honors Thesis
Fall 2026ZOOLOGY 691Senior Thesis
Fall 2026ZOOLOGY 692Senior Thesis
Fall 2026ZOOLOGY 699Directed Studies in Zoology
Fall 2026ZOOLOGY 990Research

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

Instructor identity & provenance 
{
  "instructor_uid": "instructor_e3007cce4b49bc608bb4cd64",
  "source": "enrollment",
  "source_instructor_id": "dehrlich",
  "identity_basis": "netid",
  "identity_status": "source_identified",
  "name": "David Ehrlich",
  "email": "DEHRLICH@WISC.EDU",
  "first_observed_at": "2026-09-07 15:55:43.033547+00:00",
  "last_observed_at": "2026-10-14 17:50:09.728220+00:00",
  "ratings": {
    "review_count": 3,
    "quality": 3,
    "difficulty": 4,
    "quality_count": 3,
    "difficulty_count": 3,
    "profile_id": "rmp:2844757",
    "source_url": "https://www.ratemyprofessors.com/professor/2844757",
    "match_basis": "exact_name",
    "observed_at": "2026-10-14 19:18:14.432807+00:00",
    "courses": {},
    "bayesian_quality": 3.5732118091273652,
    "prior_mean": 3.65919358049647,
    "prior_weight": 20
  },
  "current": true,
  "courses": [
    {
      "course_uid": "course_258e7ff4b2ab66331f2394d7",
      "course_id": "MOLBIOL 699",
      "title": "DIRECTED STUDIES IN MOLECULAR BIOLOGY",
      "credits_min": 1,
      "credits_max": 4,
      "gpa": 4
    },
    {
      "course_uid": "course_44b929ea5e2ec386a45f71f0",
      "course_id": "ZOOLOGY 299",
      "title": "DIRECTED STUDIES IN ZOOLOGY",
      "credits_min": 1,
      "credits_max": 3,
      "gpa": 3.99
    },
    {
      "course_uid": "course_4bad19b074dbfad403d8ee9c",
      "course_id": "ZOOLOGY 962",
      "title": "SEMINAR-ETHOLOGY",
      "credits_min": 1,
      "credits_max": 1,
      "gpa": 3.989
    },
    {
      "course_uid": "course_83a5fcab0196b930212b2093",
      "course_id": "NTP 990",
      "title": "RESEARCH AND THESIS",
      "credits_min": 1,
      "credits_max": 12,
      "gpa": null
    },
    {
      "course_uid": "course_93e1256305bdb2e9861d43a0",
      "course_id": "ZOOLOGY 199",
      "title": "DIRECTED STUDY",
      "credits_min": 1,
      "credits_max": 3,
      "gpa": 4
    },
    {
      "course_uid": "course_9802a76f2e676ef12ea60592",
      "course_id": "ZOOLOGY 682",
      "title": "SENIOR HONORS THESIS",
      "credits_min": 1,
      "credits_max": 4,
      "gpa": 3.923
    },
    {
      "course_uid": "course_99896f8bf4a820406be46d1c",
      "course_id": "ZOOLOGY 990",
      "title": "RESEARCH",
      "credits_min": 1,
      "credits_max": 9,
      "gpa": null
    },
    {
      "course_uid": "course_c7911cf4ed9adf4f70e4ddcd",
      "course_id": "ZOOLOGY 692",
      "title": "SENIOR THESIS",
      "credits_min": 1,
      "credits_max": 4,
      "gpa": 4
    },
    {
      "course_uid": "course_dec271f294e619e652e01aed",
      "course_id": "ZOOLOGY 699",
      "title": "DIRECTED STUDIES IN ZOOLOGY",
      "credits_min": 1,
      "credits_max": 6,
      "gpa": 3.976
    }
  ],
  "revision": "fc1811fa52e581ea57a35c0cf3343f8740a8ffbf",
  "instructor_url": "/instructors/DAVID_EHRLICH"
}