Chang Lee

MATH131 · MATH117 · MATH150 · MATH137 · MATH130 · MATH107 · 29 lifetime ratings

AI rating: 28/100
RMP rating: 2.5/5
Take again: 35.71%
Difficulty: 3.6

The decision

Avoid unless you need the course and can handle a strict, often unfriendly instructor while self-advocating hard.

Best fit · Hardcore LearnerRude to studentsTough graderLots of homeworkClear grading criteria onlineCondescending

Many students describe belittling, rude classroom behavior that discourages questions
Workload and tests are heavy; As still appear when students grind and
Online sections often

Key questions

Four answers before you build your schedule.

Is this an easy A?

HardWork

38/100

As and A+s exist with drops and , but and heavy work mean an A is never free.

Online students more often report A paths with structure; stress.

Is the course easy?

Challenging

32/100

Math courses are hard, tests harder than quizzes, and .

Both formats call the subject tough; online .

Is attendance flexible?

Mandatory

28/100

and you will not pass.

In-person more often stresses presence; .

Is this professor recommended?

Avoid

32/100

and a large share of and harshness.

Online has more conditional positives; .

Course guide

See how this professor fits your week.

Grading

Strict

30/100

; some drops and soften but do not reverse harsh standards.

Format shift

Strictness appears in both formats; online sometimes offsets with .

Workload

Heavy

24/100

Lots of , and reports of assignments taking many hours.

Format shift

Online and in-person both report heavy work; online summer stats needs daily study.

Teaching experience

Poor

30/100

A and structure; the dominant theme is rudeness that blocks learning.

Format shift

In-person reviews are much harsher on demeanor; and condescending.

Assessment method

FocusOnExams

72/100

Quizzes, midterms, and finals drive outcomes, with but .

Format shift

Both formats are test-heavy; online notes midterms, finals, and .

Luni fit check

Weigh these signals against your actual schedule.

Get help balancing workload, grading, and timing when no option is an obvious fit.

Course format

Compare the in-person and online experience.

Classroom format

In person

19 reviews

High confidence · Best fit for Hardcore Learner

In-person sections draw the strongest hostility reports: students feel humiliated , and .

Main concern

Hostile classroom tone that shuts down questions despite heavy material.

What students said

“He is INCREDIBLY rude to his students and obviously hates his life and his job.”
MATH117

“Lee Chang is not only an awful professor but also an awful person.”
MATH130

“He makes students feel dumb for asking questions”
MATH150

Remote format

Online

10 reviews

Medium confidence · Best fit for Hardcore Learner

, and helpful drops, but still strict, work-heavy, and uneven on email support.

Main concern

Heavy weekly time cost and occasional cold or .

What students said

“class is very well laid out online, drops 3 lowest quizzes and .”
MATH117

“He is so nice and helpful though, and all he wants from his students is some participation”
MATH117

“he is unbelievably condescending and rude to his students who ask for help.”
MATH150

Exam style

Know what to expect from exams and major assignments.

Standard math testing with , and .

Test heavyQuiz dropsTimed upload windowsNotes sometimes allowed later

Assessment risk

Standard

44/100

Low score means less forgiving assessment conditions.

In person

; notes policies change and grades feel strict.

Tests harder than quizzesNo notes early then notes laterDrops quizzes or one test

“The so much harder than the .”
MATH130

“No notes on 1st 2 tests, notes after. Hw is out of textbook. He drops 3 quizzes and .”
MATH130

Online

Online exams can be strict on upload time and email confirmation; and .

15-minute scan and uploadQuiz dropsFinal replaces lowest examLecture videos

“he only gives students 15 mins to scan and upload exams.”
MATH117

“drops 3 lowest quizzes and .”
MATH117

Student evidence

See what students actually said.

Top student voice
“ . He is INCREDIBLY rude to his students and obviously hates his life and his job.”
Voice snapshots generated from 29 reviews (10 online, 19 in-person), highlighting hostility risk, heavy work, and format differences. Credibility rating: High.

😠 Classroom Hostility

22/100

“He belittles his students everytime they try to ask a question and he's horrible at teaching the subject.”

🧭 Online Structure Upside

55/100

“Good professor. The and straight forward. Chang is strict with deadlines but out.”

🏋️ Workload Reality

24/100

“ 20hrs per week, and will give you an instant 0 if you are absent”

Theme 1

❤️ About Character

He makes students feel dumb for asking questions
Most disrespectful teacher I have ever had.
He is so nice and helpful though

Theme 2

📈 About Difficulty & Grades

Definitely not an easy A.
I am HORRIBLE at math and ended this class with an A because I utilized the tutor and his office hours.
gives a TON of .

Theme 3

👨‍🏫 About Teaching Style

.
His knowledge and extremely useful and engaging in his lectures.
Videos are no help.

Data context

See exactly what the AI read.

Analysis sample

Recent reviews read by the AI

Lifetime ratings

80/100

Evidence confidence

Twenty-nine reviews over a decade with a , and consistent rudeness and workload themes.

Inside 29 stored ratings

Quality ratings

5 out of 56

4 out of 54

3 out of 52

2 out of 53

1 out of 514

Course coverage

MATH11712 reviews

MATH1306 reviews

MATH1505 reviews

MATH1073 reviews

MATH1372 reviews

Show 1 more courses

MATH1311 review

Reported outcomes

A range results lead the reported letter grades.

23 reported outcomes

A range

A+ 5 · A 4 · A- 4

B range

B+ 1 · B 5

C range

C+ 2

D range

D+ 1

F

F 1

No letter grade reported

No reported values