Charles Cowell

CHEMISTRY21A · CHEM4 · CHEM20 · CHEM21B · CHEMISTRY · CHEM21AB · CHM1234 · CHEM21A · CHEM1B · 47 lifetime ratings

AI rating: 91/100
RMP rating: 4.4/5
Take again: —
Difficulty: 3.4

The decision

if you want a strong chemistry teacher and are ready to study consistently.

Best fit · Effort For RewardClear chemistry lecturerDemanding but fairLecture-note driven examsHelpful office hoursStrong learning payoff

Students and chemistry knowledge.
The course material is often hard, but exams and and notes.
High grades are possible with , and practice problems.

Key questions

Four answers before you build your schedule.

Is this an easy A?

FairEffort

64/100

An A is realistic, but students repeatedly say it requires detailed notes, steady practice, and heavy studying.

because there are no online reviews.

Is the course easy?

Challenging

35/100

Chemistry content is often described as hard, especially CHEM21B, even though .

, and they consistently separate hard material from good teaching.

Is attendance flexible?

MustTake

92/100

Students strongly recommend him because he teaches clearly, helps in office hours, and makes hard chemistry learnable.

Recommendation .

Course guide

See how this professor fits your week.

Grading

Fair

58/100

Grading is mostly fair with some and , but students still need correct work and strong preparation.

Format shift

Workload

Heavy

28/100

The workload is heavy because success depends on constant studying, note review, worksheets, and practice problems.

Format shift

Only in-person students described the workload.

Teaching experience

Excellent

93/100

Most students describe him as , and unusually effective for difficult chemistry courses.

Format shift

Teaching .

Assessment method

Balanced

62/100

Assessments include , and a final, with exams strongly tied to lecture notes.

Format shift

Assessment .

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

47 reviews

High confidence · Best fit for Effort For Reward

In-person reviews describe a clear, caring chemistry professor whose classes are demanding but highly rewarding.

Main concern

Students must keep up with notes, practice problems, and heavy studying.

What students said

“You need to study a TON, but you will learn so much.”
CHEM21B

“his tests and ”
CHEM20

“I got an A, but I worked my ass off for it.”
CHEM21B

Remote format

Online

0 reviews

Low confidence

No stored summary is available for this format.

Main concern

No main concern is stored for this format.

Exam style

Know what to expect from exams and major assignments.

Reviews show tests and , and practice problems, but they do not clearly prove open-book, webcam, proctoring, or closed-book rules.

Lecture-Based TestsFrequent QuizzesFinal ExamPractice Problems

Assessment risk

Standard

60/100

Low score means less forgiving assessment conditions.

In person

, and finals, but exam security rules are not clearly proven.

Lecture-Based TestsFrequent QuizzesFinal Exam

“you will definitely see it on the quizzes and tests”
CHEM20

“EXAM and QUIZES are base on his everyday lectures”
CHEM21A

“he does not believe in scantrons!”
CHEM21A

Online

Student evidence

See what students actually said.

Top student voice
“You need to study a TON, but you will learn so much.”
Voice snapshots generated from 47 reviews, highlighting key themes in teaching and grading. Credibility rating: High.

🎯 Teaching Quality

93/100

“ !”

📈 Effort And Grades

64/100

“I got an A, but I worked my ass off for it.”

⚖️

60/100

“his tests and ”

Theme 1

👨‍🏫 About Teaching Style

He teaches very clearly.
He is very thorough with his lectures.
He makes the class as simple and as understandable as possible.

Theme 2

📚 About Difficulty And Work

This class is no joke.
You have to be dedicated to studying and .
The material is hard, and you will not pass if you slack off.

Theme 3

✅ About Grades And Exams

Study his notes and .
He gives out lots of examples, and .
which he gives out 5-17 extra per exam.

Data context

See exactly what the AI read.

Analysis sample

Recent reviews read by the AI

Lifetime ratings

88/100

Evidence confidence

Credibility is high because 47 in-person reviews across many years give detailed and consistent themes about teaching, workload, and exams.

Inside 47 stored ratings

Quality ratings

5 out of 535

4 out of 57

3 out of 52

2 out of 51

1 out of 52

Course coverage

CHEM21A20 reviews

CHEM21B12 reviews

CHEM45 reviews

CHEM203 reviews

CHEMISTRY3 reviews

Show 4 more courses

CHEM1B1 review

CHEM21AB1 review

CHEMISTRY21A1 review

CHM12341 review

Reported outcomes

B range results lead the reported letter grades.

2 reported outcomes

A range

No reported values

B range

B 1

C range

No reported values

D range

No reported values

F

No reported values

No letter grade reported

Not_Sure_Yet 1

Charles Cowell

x x if you want a strong chemistry teacher and are ready to study consistently.

Four answers before you build your schedule.

FairEffort

Challenging

Recommended

MustTake

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

📈 Effort And Grades

⚖️ x x

👨‍🏫 About Teaching Style

📚 About Difficulty And Work

✅ About Grades And Exams

See exactly what the AI read.

Quality ratings

Course coverage

B range results lead the reported letter grades.

A range

B range

C range

D range

F

No letter grade reported

if you want a strong chemistry teacher and are ready to study consistently.

⚖️