Joaquin Rivera-Conteras

OCHEM · CHEM238 · OCHEM234 · CHEM220 · CHEM234 · CHEM235 · 46 lifetime ratings

AI rating: 28/100
RMP rating: 2.9/5
Take again: 20%
Difficulty: 4.1

The decision

Avoid unless you are ready for , and heavy self-study with little cushion.

Best fit · Hardcore LearnerTough GraderTest HeavyExam-Lecture MismatchHarsh LabsPolarizing Chem

Many students report and practice tests.
Labs and and inconsistent.
A if you practice relentlessly.

Key questions

Four answers before you build your schedule.

Is this an easy A?

MissionImpossible

18/100

Students repeatedly say grades rest on few exams and buffer.

Nearly all evidence is in person; the one online .

Is the course easy?

Challenging

22/100

Organic and general chemistry content is hard, and .

In-person ochem and CHEM220 drive the difficulty picture.

Is attendance flexible?

Mandatory

28/100

and warn that skipping leaves you unprepared for tests.

Is this professor recommended?

Avoid

22/100

and many students urge peers to switch campuses or .

A minority of ; .

Course guide

See how this professor fits your week.

Grading

Harsh

16/100

, and little partial credit dominate the comments.

Format shift

Workload

Heavy

32/100

Success requires constant practice problems, long slides, and detailed lab writeups.

Format shift

, but study load is still high.

Teaching experience

Poor

40/100

Some call lectures excellent; many call him demeaning, hard to understand, or unhelpful outside class.

Format shift

Polarization is mainly within in-person reviews across many years.

Assessment method

FocusOnExams

88/100

Grades often depend almost entirely on exams and .

Format shift

Both the online lab 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

45 reviews

High confidence · Best fit for Hardcore Learner

In-person chemistry and ochem reviews are highly polarized: and harsh grading for many others.

Main concern

Tests and and often feel much harder than class examples.

What students said

“IF YOU WANT TO FAIL CHEM 220 TAKE HIM. THAT'S ALL I GOT TO SAY!”
CHEM220

“ . Just go to class and pay attention to his lecture.”
OCHEM

“ and make you think you can pass but then throws a curveball with an and much harder.”
CHEM220

Remote format

Online

1 reviews

Low confidence · Best fit for Hardcore Learner

The single online lab and little support.

Main concern

and .

What students said

“Absolutely the worse professor I have ever had. Especially in .”
CHEM238

Exam style

Know what to expect from exams and major assignments.

Exams and , with strict scoring.

Exam-Heavy GradeHarder Than PracticeLittle Partial CreditStrict Lab Reports

Assessment risk

Strict

28/100

Low score means less forgiving assessment conditions.

In person

In-person exams often feel harder than lecture examples, with free response and .

Free Response ExamsPractice-Exam MismatchStrict LabsFew Graded Items

“He goes over simple examples during lectures but puts hard questions on the tests.”
CHEM220

“ , very easy to get the whole thing wrong.”
CHEM234

Online

and large point losses.

Harsh Lab ReportsInconsistent RubricNo Clear Criteria

“He does not have a and always grades harshly.”
CHEM238

Student evidence

See what students actually said.

Top student voice
“Go to CSM or Canada and . You have been warned.”
Voice snapshots generated from 46 reviews, highlighting harsh grading and polarized lecture quality. Credibility rating: High.

⚠️ Recommendation Risk

22/100

“IF YOU WANT TO FAIL CHEM 220 TAKE HIM. THAT'S ALL I GOT TO SAY!”

🧪

28/100

“ and make you think you can pass but then throws a curveball with an and much harder.”

🎯

55/100

“ ! His lectures are clear and concise.”

📉

16/100

“He grades super tough on the labs too.”

Theme 1

👨‍🏫 About Teaching Style

His lectures cover everything and he provides a surplus of practice problems
always on the phone

Theme 2

📈 About Difficulty and Grades

Barely gives partial credit for exams
He is a

Theme 3

💔 About Support and Fairness

and
Went to him for help and he was extremely demeaning to me

Data context

See exactly what the AI read.

Analysis sample

Recent reviews read by the AI

Lifetime ratings

84/100

Evidence confidence

Forty-six reviews over many years show a consistent tough-grader pattern despite a .

Inside 46 stored ratings

Quality ratings

5 out of 517

4 out of 53

3 out of 55

2 out of 56

1 out of 515

Course coverage

CHEM22027 reviews

CHEM2355 reviews

CHEM2344 reviews

CHEM2384 reviews

OCHEM4 reviews

Show 2 more courses

2341 review

OCHEM2341 review

Reported outcomes

No letter grade reported results lead the reported letter grades.

11 reported outcomes

A range

A 1

B range

B+ 2 · B- 2

C range

No reported values

D range

D 1

F

No reported values

No letter grade reported

Drop/Withdrawal 4 · Not sure yet 1

Joaquin Rivera-Conteras

Avoid unless you are ready for x x x x x, and heavy self-study with little cushion.

Four answers before you build your schedule.

MissionImpossible

Challenging

Mandatory

Avoid

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.

⚠️ Recommendation Risk

🧪 x x

🎯 x x x x

📉 x x

👨‍🏫 About Teaching Style

📈 About Difficulty and Grades

💔 About Support and Fairness

See exactly what the AI read.

Quality ratings

Course coverage

No letter grade reported results lead the reported letter grades.

A range

B range

C range

D range

F

No letter grade reported

Avoid unless you are ready for , and heavy self-study with little cushion.

🧪

🎯

📉