AI Rate Professor

Chemistry

Isaac Koh

CHEM151 · CHEM202 · CHEM256 · CHEM255 · CHEM201 · 52 lifetime ratings

AI rating
55/100
RMP rating
3.0/5
Take again
48.78%
Difficulty
3.8

The decision

Take him if , and push through a test-heavy structure; if you need clear organization.

Best fit · Effort For RewardCaring but polarizingTest-heavy chemistryExtra credit and curvesDisorganized gradingHard to follow
  • some praise his care and , while and confusing.
  • Chemistry content is genuinely challenging, but many students say effort, worksheets, and .
  • Upper chemistry and online reviews are much more negative than many recent CHEM151 in-person reviews.

Key questions

Four answers before you build your schedule.

Is this an easy A?

FairEffort

60/100

An A is realistic for disciplined students who , and homework, but it is not low-effort.

, while online evidence is mostly negative and self-taught.

Is the course easy?

Challenging

35/100

, and sometimes confusing explanations make the course intellectually demanding.

In-person CHEM151 can feel manageable, but online and upper-level chemistry reviews describe much heavier difficulty.

Is attendance flexible?

Mandatory

28/100

Lab and , and multiple reviews say showing up is needed to succeed.

In-person evidence clearly supports attendance importance, while online reviews focus .

Is this professor recommended?

Depends

52/100

Recommendation depends heavily on course level and student style because supportive reviews and .

In-person reviews are mixed but include many strong recommendations, while .

Course guide

See how this professor fits your week.

Grading

Fair

55/100

He offers partial credit, dropped scores, , and , but many students still call him nitpicky or harsh.

Format shift

In-person reviews show both lenient boosts and , while online reviews lean harsh.

Workload

Heavy

32/100

Students frequently , and heavy pacing, especially in short sessions.

Format shift

Online reviews describe very frequent quizzes and exams, while in-person workload varies by course but is often heavy.

Teaching experience

Average

58/100

He is often described as caring and knowledgeable, but many students say , and communication are inconsistent.

Format shift

Recent in-person CHEM151 reviews are more positive, while online and .

Assessment method

FocusOnExams

82/100

, and homework, with several reviews saying tests determine outcomes.

Format shift

Both formats are test-heavy, but and worksheets.

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

46 reviews

High confidence · Best fit for Effort For Reward

In-person reviews are mixed, with recent CHEM151 praise for care and support but many CHEM201/256 warnings about tests, grading, and disorganization.

Main concern

The class can become stressful when grades are delayed, test policies dominate, or .

What students said

“If you make the effort to show up, do the work, and participate, you will get a good grade.”
CHEM202
“ and disorganized.”
CHEM256

Remote format

Online

4 reviews

Medium confidence · Best fit for Self Taught Pro

Online reviews are strongly negative, describing heavy , and self-teaching.

Main concern

Online students often felt they had to teach themselves while .

What students said

“Please stay away from him.”
CHEM256
“Learned from YouTube/book not so much him”
CHEM151

Exam style

Know what to expect from exams and major assignments.

Exams are central and often difficult, with some helpful practice material but .

Test-HeavyPractice Exams MentionedWeekly Exams Mentioned60 Percent Exam Average Policy MentionedProctoring Not Clearly Proven

Assessment risk

Standard

45/100

Low score means less forgiving assessment conditions.

In person

In-person , and a strict 60 percent test-average passing policy in CHEM256.

Test-HeavyPractice Exams60 Percent Exam Average Policy
“if your test average is not a 60% you will not be passing his class”
CHEM256
“ .”
CHEM151

Online

Online reviews mention weekly exams and frequent quizzes, but do not clearly .

Weekly ExamsFrequent QuizzesExam Policy Not Clearly Proven
“quizzes 3/5 days, weekly exams.”
CHEM151

Student evidence

See what students actually said.

Top student voice

“If you make the effort to show up, do the work, and participate, you will get a good grade.”

Voice snapshots generated from 50 reviews, highlighting key themes in teaching and grading. Credibility rating: High.

🎯 Teaching Quality

58/100

“He is very knowledgeable, but .”

📈 Effort For Grades

60/100

“If you pay attention, do the work, and study you can achieve an A.”

🧪

45/100

“The , though, and .”

Theme 1

👨‍🏫 About Teaching Style

  • He answered all my questions, stayed behind to explain materials, gave to boost grades.
  • Very difficult to understand what he's teaching, not just his accent but he goes on and on without a break.
  • and can be really entertaining.

Theme 2

📈 About Difficulty & Grades

  • You can't slack off in this class; if you work hard, you will pass.
  • He finds the smallest things to nitpick and .
  • Your lowest scores get dropped and he's willing and eager to help you.

Theme 3

🧪

  • appear on the exam.
  • There was alot of work as to be expected.
  • quizzes 3/5 days, weekly exams.

Data context

See exactly what the AI read.

Analysis sample

50

Recent reviews read by the AI

52

Lifetime ratings

92/100

Evidence confidence

Fifty reviews across a long time span provide rich detail, though experiences vary strongly by course level and format.

Inside 50 stored ratings

Quality ratings

5 out of 513
4 out of 514
3 out of 56
2 out of 54
1 out of 516

Course coverage

CHEM15126 reviews
CHEM20111 reviews
CHEM25610 reviews
CHEM2552 reviews
CHEM2021 review

Reported outcomes

A range results lead the reported letter grades.

48 reported outcomes

A range

19

A+ 3 · A 15 · A- 1

B range

11

B+ 4 · B 5 · B- 2

C range

7

C+ 1 · C 5 · C- 1

D range

1

D+ 1

F

0

No reported values

No letter grade reported

10

Drop/Withdrawal 4 · Not sure yet 3 · Rather not say 3