Peter Yi

MATH · V04 · MATHVO3 · MATH21B · V21BV21C · MATHV03 · MATHV01 · MATHV21B · MATH21A · MATHV04 · MATH21C · MATHV44 · MATHV21C · V21C · MATHV22 · MATHV21A · V21B · V05 · 104 lifetime ratings

AI rating: 74/100
RMP rating: 4.1/5
Take again: 67.57%
Difficulty: 2.8

The decision

Take Yi if you will attend, grind homework, and and if you need a soft, always-gentle lecture style.

Best fit · Effort For RewardExtra credit opportunitiesTest heavyLecture heavyThree exam attemptsClear when you put in work

Many students earn A/A+ with study guides, cheat sheets, and .
but frequently counts as .
for others.

Key questions

Four answers before you build your schedule.

Is this an easy A?

EasyA

78/100

, and study guides make an A reachable with steady work rather than pure genius.

Online and and effort; .

Is the course easy?

Standard

48/100

Calculus content is real and softens the blow.

In-person often feels clearer; some online reviews say you teach yourself.

Is attendance flexible?

Varies

42/100

and you will not pass; others report optional attendance.

than pure online.

Is this professor recommended?

WorthIt

70/100

; praise for mastery and structure is strong but negatives are loud.

; online has more dropouts and .

Course guide

See how this professor fits your week.

Grading

Lenient

72/100

Generous and multi-attempt chapter exams .

Format shift

Both formats mention ; online .

Workload

Heavy

28/100

Lots of homework and long lectures are recurring; some report 20-plus homework hours a week.

Format shift

Teaching experience

Good

74/100

, and funny; others report shaming, confusion, or poor online delivery.

Format shift

In-person clarity praised more; online quality is more polarized.

Assessment method

FocusOnExams

78/100

Chapter exams, midterms, and ; .

Format shift

Both formats are test heavy.

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

38 reviews

High confidence · Best fit for Effort For Reward

, and fair exams if you show up; a vocal minority call him rude, slow, or awful.

Main concern

and personality clash risk.

What students said

“He can teach very well. The topics are explained nicely for someone who has never taken Calc 2.”
MATHV21B

“I had like 110% most the semester. The grader, but he doesn't give easy homework or tests.”
MATH21B

“He will belittle you if he deams your effort to be less than his standard. His teaching ways are very flawed. ”
MATHV01

Remote format

Online

12 reviews

High confidence · Best fit for Self Taught Pro

Online calc sections rely on , and mixed accessibility; some call him solid, others passive-aggressive or self-taught.

Main concern

and uneven lecture quality online.

What students said

“Most of the teaching was done through prerecorded lectures which were long on average but of a good quality.”
MATHV21A

“Homework easily takes 20-25 hours a week, and each test takes about 2-3 hours.”
MATHV21A

“This class is straight-up horrible. He uses Pearson for homework and all of the .”
MATH21C

Exam style

Know what to expect from exams and major assignments.

Exams are hard but student-friendly tools like three attempts, notes sheets, and heavy are common.

Multiple Exam AttemptsCheat Sheet AllowedExtra CreditTest HeavyStudy Guides

Assessment risk

StudentFriendly

72/100

Low score means less forgiving assessment conditions.

In person

but often allow a notes sheet and are backed by study guides plus large extra-credit buffers.

Cheat Sheet AllowedStudy GuidesExtra Credit on Midterm/FinalTest Heavy

“Allows 1 sheet of notes, front and back, for the final.”
MATHV04

“20 and final (graded out of 50 but 60 points total)”
MATH21B

Online

Online students report multi-attempt chapter exams, long tests, and prep via prerecorded lectures; .

Multiple Exam AttemptsLong TestsPrerecorded Lectures

“Most importantly, you get THREE attempts for !”
MATHV21A

“if you study well beforehand, and prepare the cheat sheets, they will be easy.”
MATHV21A

Student evidence

See what students actually said.

Top student voice
“Do the time, get the A. Bonus tip: watch his videos at 1.25x speed!”
Voice snapshots generated from 50 reviews across online and in-person math sections, balancing structure praise against personality and workload complaints. Credibility rating: High.

🎯 Teaching Quality

74/100

“Peter should be teaching at a better school! Knows his stuff and teaches in a way that sticks.”

📈 Easy A With Effort

78/100

“do the homework and study and you will have an easy A. All the ”

⚠️ Polarized Experience

35/100

“He will belittle you if he deams your effort to be less than his standard. His teaching ways are very flawed. ”

📚 Heavy Workload

28/100

“Homework easily takes 20-25 hours a week, and each test takes about 2-3 hours.”

Theme 1

👨‍🏫 About Teaching Style

He can teach very well. The topics are explained nicely
Master Yi because he is pretty good at math and
His teaching ways are very flawed.

Theme 2

📈 About Difficulty & Grades

THREE attempts for !
I had like 110% most the semester.
very easy class... overall easy A

Theme 3

📝

Allows 1 sheet of notes, front and back, for the final.
though.
All the .

Data context

See exactly what the AI read.

Analysis sample

Recent reviews read by the AI

104

Lifetime ratings

88/100

Evidence confidence

Fifty reviews spanning many years and both formats, with rich detail and consistent structural themes despite polarized tone.

Inside 50 stored ratings

Quality ratings

5 out of 560

4 out of 522

3 out of 59

2 out of 56

1 out of 57

Course coverage

MATHV0314 reviews

MATH21B5 reviews

MATHVO35 reviews

MATHV044 reviews

MATHV21A4 reviews

Show 13 more courses

MATH21A3 reviews

MATHV21B3 reviews

MATHV21C2 reviews

MATH1 review

MATH21C1 review

MATHV011 review

MATHV221 review

MATHV441 review

V041 review

V051 review

V21B1 review

V21BV21C1 review

V21C1 review

Reported outcomes

A range results lead the reported letter grades.

36 reported outcomes

A range

A+ 9 · A 14 · A- 2

B range

B+ 2 · B 2

C range

C 2

D range

No reported values

F

No reported values

No letter grade reported

Drop/Withdrawal 2 · Not sure yet 3

Peter Yi

Take Yi if you will attend, grind homework, and x x x and x x if you need a soft, always-gentle lecture style.

Four answers before you build your schedule.

EasyA

Standard

Varies

WorthIt

See how this professor fits your week.

Compare the in-person and online experience.

Know what to expect from exams and major assignments.

In person

Online

See what students actually said.

🎯 Teaching Quality

📈 Easy A With Effort

⚠️ Polarized Experience

📚 Heavy Workload

👨‍🏫 About Teaching Style

📈 About Difficulty & Grades

📝 x x x x

See exactly what the AI read.

Quality ratings

Course coverage

A range results lead the reported letter grades.

A range

B range

C range

D range

F

No letter grade reported

Take Yi if you will attend, grind homework, and and if you need a soft, always-gentle lecture style.

📝