Current instructor

John Perepezko

Adjusted rating
RMP difficulty
captured reviews
About this rating

Raw average: 3.33/5 from 9 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

MSE352 · course not matched
Quality 2/5Difficulty 4/5
An incredibly intelligent guy with some really bright moments in class when talking about his work. However, lecturing is not his strong suit. Drop in tutoring and reading the textbook will be your friends. Class is important as he will mention important stuff not sent in emails(like when homework is due) and gives extra credit quizzes.
Rate My Professors ↗
MSE352 · course not matched
Quality 5/5Difficulty 4/5
Professor Perepezko is a very intelligent man and clearly knows his stuff. Showing up and paying attention in lectures is the most important factor in this class and you'll leave better for it.
Rate My Professors ↗
MSE352 · course not matched
Quality 3/5Difficulty 5/5
Dr Perepezko is no doubt the smartest professor Ive ever met. If the class size were smaller it would probably be the most useful engineering class there is, but having 40 people makes it hard to follow. The class is HARD and way more time consuming than I expected. The final was not cumulative and covered 400 pages of a research like textbook
Rate My Professors ↗
MSE352 · course not matched
Quality 1/5Difficulty 5/5
Prof. Perepezko is one of the smartest scientists and researchers. He genuinely knows what he's talking about. His problem is that he is a atrocious lecturer. He doesn't know how to properly educate undergrads. He has a obnoxiously unrealistic expectations of his students. There is no book, so your best source are your peers, work together.
Rate My Professors ↗
MSE352 · course not matched
Quality 2/5Difficulty 5/5
amazingly smart, horrible communicator
Rate My Professors ↗
MSE352 · course not matched
Quality 5/5Difficulty 5/5
The most useful course. John is a good teacher. I'm glad that I took the course
Rate My Professors ↗

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

Classes with John Perepezko

MS&E 699

Independent Study

1–4 credits

Independent study courses in Metallurgical Engineering.

Offering recorded · Spring 2027 · Sources

AJ BoydstonIrena Knezevic+33 more

historical GPA · grades

Fall 2022–Fall 2022 · limited sample
MS&E 752

Advanced Materials Science: Phase Transformations

3 credits

Advanced materials science covering phase transformations, nucleation theory, structural imperfections, alloy phase equilibria, interface reactions, and growth kinetics.

Offering recorded · Spring 2027 · Sources

Recent recorded grades — Fall 2014: 3.56 GPA, 66.7% A/AB (n=9 letter grades); Fall 2017: 3.44 GPA, 56.2% A/AB (n=16 letter grades); Spring 2026: 3.50 GPA, 55.6% A/AB (n=9 letter grades).

John Perepezko

historical GPA · grades

Spring 2023–Spring 2026 · limited sample

Recorded teaching history

Distinct courses recorded per term

Explore courses taught by this instructor →
Browse recorded courses
TermCourseTitle
Spring 2027MS&E 699Independent Study
Spring 2027MS&E 752Advanced Materials Science: Phase Transformations
Spring 2027MS&E 790Master's Research or Thesis
Spring 2027MS&E 890Pre-dissertator's Research
Spring 2027MS&E 990Research and Thesis
Fall 2026MS&E 463Materials for Elevated Temperature Service
Fall 2026MS&E 699Independent Study
Fall 2026MS&E 790Master's Research or Thesis
Fall 2026MS&E 890Pre-dissertator's Research
Fall 2026MS&E 990Research and Thesis

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

Instructor identity & provenance 
{
  "instructor_uid": "instructor_12fbf2f1b8a693bc9677e054",
  "source": "enrollment",
  "source_instructor_id": "jhperepe",
  "identity_basis": "netid",
  "identity_status": "source_identified",
  "name": "John Perepezko",
  "email": "PEREPEZK@ENGR.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": 9,
    "quality": 3.33,
    "difficulty": 4.22,
    "quality_count": 9,
    "difficulty_count": 9,
    "profile_id": "rmp:1888468",
    "source_url": "https://www.ratemyprofessors.com/professor/1888468",
    "match_basis": "exact_name",
    "observed_at": "2026-10-14 19:05:09.293251+00:00",
    "courses": {},
    "bayesian_quality": 3.5570300555148067,
    "prior_mean": 3.65919358049647,
    "prior_weight": 20
  },
  "current": true,
  "courses": [
    {
      "course_uid": "course_0fdd1989bb45a404dd2d28e0",
      "course_id": "MS&E 699",
      "title": "INDEPENDENT STUDY",
      "credits_min": 1,
      "credits_max": 4,
      "gpa": 4
    },
    {
      "course_uid": "course_2fbd438d987a857933af1698",
      "course_id": "MS&E 752",
      "title": "ADVANCED MATERIALS SCIENCE: PHASE TRANSFORMATIONS",
      "credits_min": 3,
      "credits_max": 3,
      "gpa": 3.647
    },
    {
      "course_uid": "course_5aba6eb72c00287fdd35a6a2",
      "course_id": "MS&E 790",
      "title": "MASTER'S RESEARCH OR THESIS",
      "credits_min": 1,
      "credits_max": 9,
      "gpa": null
    },
    {
      "course_uid": "course_84600d06d91b0bf2f0160f90",
      "course_id": "MS&E 990",
      "title": "RESEARCH AND THESIS",
      "credits_min": 1,
      "credits_max": 9,
      "gpa": null
    },
    {
      "course_uid": "course_94eebf9b99ce6427f2978127",
      "course_id": "MS&E 890",
      "title": "PRE-DISSERTATOR'S RESEARCH",
      "credits_min": 1,
      "credits_max": 9,
      "gpa": null
    }
  ],
  "revision": "fc1811fa52e581ea57a35c0cf3343f8740a8ffbf",
  "instructor_url": "/instructors/JOHN_PEREPEZKO"
}