The worst professor I have ever had. His accent is completely incomprehensible, and his handwriting is somehow worse. Clearly does not care at all about teaching. Rushed through the content at an insane speed, scribbling all over the notes and taking no time to actually teach anything. I went to the other professors lectures. Avoid at all costs.Rate My Professors ↗
Current instructor
Ying Li
What students say
Original student reviews · all captured dates
Professor Li just did not show up to class the majority of the time, and his TA had to take over (they tried their best). Would recommend taking another professor if possible.Rate My Professors ↗
His English was terrible, he didn't spend time preparing materials for us, and even 40% of the lectures were given to his ta. He didn't seem to care about what students could learn, and the students in his lab seemed to feel the same way, and many of them left.Rate My Professors ↗
Professor Li has a very thick accent that makes him impossible to understand. He was condescending in lecture and his handwriting was illegible. He only came 60% of the time, otherwise a TA would step in to teach, and we were never told why. I started watching recorded lectures from the other professor. Do not take Mechanics of Materials with Li.Rate My Professors ↗
Personal experiences, not a representative survey. Profile matching and captured coverage are shown in the source details.
Classes with Ying Li
ME 601 covers advanced special topics in Mechanical Engineering including vibrations, manufacturing, and energy systems.
Offering recorded · Fall 2026
Recent recorded grades — Fall 2024: 3.83 GPA, 83.3% A/AB (n=6 letter grades); Fall 2025: 3.40 GPA, 80.0% A/AB (n=20 letter grades).
historical GPA · grades
Spring 2022–Spring 2026Master's Research and Thesis
1–9 creditsME 790 is a directed study course for Mechanical Engineering graduate students to conduct research projects arranged with an instructor.
Offering recorded · Fall 2026
No recorded grade history
Phd Research and Thesis
1–9 creditsME 890 is a PhD research and thesis course offering directed study projects arranged with an instructor.
Offering recorded · Fall 2026
No recorded grade history
Dissertator Research and Thesis
1–9 creditsME 990 is a directed study course for Mechanical Engineering PhD students to conduct dissertation research and thesis work arranged with an instructor.
Offering recorded · Fall 2026
No recorded grade history
Recorded teaching history
Explore courses taught by this instructor →Browse recorded courses
Teaching history may be incomplete. Course pages contain course-specific feedback and citations.
Instructor identity & provenance
{
"instructor_uid": "instructor_e73e8d3588b3ce86415cad10",
"source": "enrollment",
"source_instructor_id": "yli2562",
"identity_basis": "netid",
"identity_status": "source_identified",
"name": "Ying Li",
"email": "YLI2562@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": 4,
"quality": 1,
"difficulty": 3.5,
"quality_count": 4,
"difficulty_count": 4,
"profile_id": "rmp:3015449",
"source_url": "https://www.ratemyprofessors.com/professor/3015449",
"match_basis": "exact_name",
"observed_at": "2026-09-07 15:58:01.186886+00:00",
"courses": {
"course_d3ef3d28e556046ee2bca234": {
"review_count": 4,
"quality": 1,
"difficulty": 3.5,
"quality_count": 4,
"difficulty_count": 4
}
},
"bayesian_quality": 3.216404819622163,
"prior_mean": 3.6596857835465957,
"prior_weight": 20
},
"current": true,
"courses": [
{
"course_uid": "course_03c4f87e5983019c1d00307b",
"course_id": "ME 790",
"title": "MASTER'S RESEARCH AND THESIS",
"credits_min": 1,
"credits_max": 9,
"gpa": null
},
{
"course_uid": "course_09460e8a4adb09b0cab39d2d",
"course_id": "ME 990",
"title": "DISSERTATOR RESEARCH AND THESIS",
"credits_min": 1,
"credits_max": 9,
"gpa": null
},
{
"course_uid": "course_49f4cc81838176c2180ea21f",
"course_id": "ME 601",
"title": "SPECIAL TOPICS IN MECHANICAL ENGINEERING",
"credits_min": 1,
"credits_max": 3,
"gpa": 3.672
},
{
"course_uid": "course_e33ce416ca88e57dc84c5908",
"course_id": "ME 890",
"title": "PHD RESEARCH AND THESIS",
"credits_min": 1,
"credits_max": 9,
"gpa": null
}
],
"revision": "e243353dcb7d79b7247ced91d69443ef4c2a6349",
"instructor_url": "/instructors/YING_LI"
}