Current instructor

Chanwoo Kim

/5Adjusted rating
/5RMP difficulty
captured reviews
About this rating

Raw average: 1.45/5 from 42 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

MATH 221
Quality 2/5Difficulty 2/5
Chanwoo was hard to understand, came late and unprepared to lecture, failed to properly answer questions, and constantly messed up and seemed like he didn't understand the concepts himself. He was a nice guy, just not a very informed professor.
Rate My Professors ↗
MATH 221
Quality 1/5Difficulty 3/5
He did not teach; I had previously taken calculus in high school and spent my entire semester teaching my friends the curriculum. If I didn't have previous experience I would have failed. Would get problems wrong every lecture while doing them on the board and then would just move on knowing that he was wrong. DO NOT TAKE.
Rate My Professors ↗
MATH 221
Quality 1/5Difficulty 5/5
Good luck, he doesn't teach and reads his slides instead of explaining what's going on.
Rate My Professors ↗
MATH 221
Quality 1/5Difficulty 4/5
Chanwoo is the absolute worst teacher I have ever encountered. If I didn't have previous calc experience, I wouldn't have done well. His lectures are a waste of time, and he's incapable of answering questions. I ended up using his class time to teach my friends what was going on. He's also mean and insufferable. DON'T TAKE.
Rate My Professors ↗
MATH 221
Quality 1/5Difficulty 4/5
If you have special circumstances with needing to miss something, or requesting extra time on things, he is not someone that is understanding and will not care. Your entire grade is determined based on midterms so if you do bad at the beginning, your grade will not be able to get improved much. His teaching is showing proofs that are irrelevant.
Rate My Professors ↗

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

Classes with Chanwoo Kim

MATH 221

Calculus and Analytic Geometry 1

5 credits

Introduction to differential and integral calculus, plane analytic geometry, and transcendental functions with applications.

Offering recorded · Fall 2026

Chanwoo Kim receives uniformly negative feedback for poor lecturing, with students describing his explanations as unclear and his lectures as unhelpful. Reviewers report that he often reads from slides, makes errors on the board, and fails to answer questions, forcing students to teach themselves the material.

Joseph MillerChanwoo Kim+20 more

historical GPA · grades

Spring 2022–Spring 2026

Recorded teaching history

Explore courses taught by this instructor →
Browse recorded courses
TermCourseTitle
Fall 2026MATH 221Calculus and Analytic Geometry 1

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

Instructor identity & provenance 
{
  "instructor_uid": "instructor_387f537a98687be564194e24",
  "source": "enrollment",
  "source_instructor_id": "ckim99",
  "identity_basis": "netid",
  "identity_status": "source_identified",
  "name": "Chanwoo Kim",
  "email": "CHANWOO.KIM@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": 42,
    "quality": 1.45,
    "difficulty": 4.05,
    "quality_count": 42,
    "difficulty_count": 42,
    "profile_id": "rmp:1979621",
    "source_url": "https://www.ratemyprofessors.com/professor/1979621",
    "match_basis": "exact_name",
    "observed_at": "2026-09-07 16:49:17.130573+00:00",
    "courses": {
      "course_cc1de60e9953cdd9c469e9a5": {
        "review_count": 11,
        "quality": 1.09,
        "difficulty": 4.09,
        "quality_count": 11,
        "difficulty_count": 11
      },
      "course_9b0dc1865ea603eb0083bc33": {
        "review_count": 12,
        "quality": 1.08,
        "difficulty": 3.75,
        "quality_count": 12,
        "difficulty_count": 12
      },
      "course_6bc496e4640fd08f71e1b041": {
        "review_count": 8,
        "quality": 2.25,
        "difficulty": 4.38,
        "quality_count": 8,
        "difficulty_count": 8
      },
      "course_8634dde81cc95f6c58014087": {
        "review_count": 3,
        "quality": 2,
        "difficulty": 3.67,
        "quality_count": 3,
        "difficulty_count": 3
      },
      "course_1f8e8903c7761a5fe852a4bc": {
        "review_count": 5,
        "quality": 1.8,
        "difficulty": 4,
        "quality_count": 5,
        "difficulty_count": 5
      }
    },
    "bayesian_quality": 2.162801865660192,
    "prior_mean": 3.6596857835465957,
    "prior_weight": 20
  },
  "current": true,
  "courses": [
    {
      "course_uid": "course_cc1de60e9953cdd9c469e9a5",
      "course_id": "MATH 221",
      "title": "CALCULUS AND ANALYTIC GEOMETRY 1",
      "credits_min": 5,
      "credits_max": 5,
      "gpa": 2.856
    }
  ],
  "revision": "e243353dcb7d79b7247ced91d69443ef4c2a6349",
  "instructor_url": "/instructors/CHANWOO_KIM"
}