AI Rate Professor

Chemistry

Mario Vargas

CHEM20 · CHEM1200 · CHEM1151 · 31 lifetime ratings

AI rating
19/100
RMP rating
2.1/5
Take again
34.48%
Difficulty
3.9

The decision

unless , and comfortable with limited communication.

Best fit · Self Taught ProDisorganized deadlinesPoor communicationHeavy workloadTest heavyStrict grading
  • Recent negative reviews repeatedly cite no email responses, weak office-hour access, random deadlines, and vague instructions.
  • A minority of students say he is fair if you are disciplined and study hard, especially in more positive 2024 reviews.
  • The course is high-risk because chemistry is already demanding and many students describe unnecessary stress.

Key questions

Four answers before you build your schedule.

Is this an easy A?

HardWork

32/100

Some students earn A grades, but most comments say success requires heavy studying, strict time management, and outside help.

Online and in-person evidence both show the A is possible but costly, with .

Is the course easy?

Challenging

28/100

Chemistry concepts, fast pacing, vague instructions, and hard quizzes make the course intellectually and logistically difficult.

Online reviews mention lengthy videos and self-study, while and limited time.

Is attendance flexible?

Varies

45/100

, but , and response windows feel rigid.

Online reviews mention asynchronous structure, while .

Is this professor recommended?

Avoid

30/100

Most negative reviews warn against him because of poor communication, disorganization, workload, and stress.

Both formats include positive defenders, but and online reviews are intense and frequent.

Course guide

See how this professor fits your week.

Grading

Strict

25/100

Students often mention , and little flexibility.

Format shift

Online reviews mention strict grading and no late work, while and .

Workload

Heavy

22/100

Many reviews describe lots of , and multiple assessments in short windows.

Format shift

Both formats report heavy work, with in-person reviews emphasizing random and compressed deadlines.

Teaching experience

Poor

29/100

A and helpful, but many students describe weak communication, disorganization, and little support.

Format shift

Online students often feel isolated by videos and slow replies, while and severe organization issues.

Assessment method

FocusOnExams

78/100

The course , and chapter assessments, with assignments and labs adding workload.

Format shift

Both formats repeatedly mention quizzes and exams as .

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

, emphasizing random assignments, poor communication, heavy quizzes, and high stress.

Main concern

and limited support can make the class feel chaotic.

What students said

“ it.”
CHEM20
“You are on your own in this class”
CHEM20

Remote format

Online

12 reviews

High confidence · Best fit for Self Taught Pro

Online reviews are split, but many describe long , and strict no-late policies.

Main concern

Students often feel unsupported and must manage the class alone.

What students said

“You will not survive this class if you are terrible at studying by yourself.”
CHEM20
“ .”
CHEM20

Exam style

Know what to expect from exams and major assignments.

Exam evidence is mixed but leans strict because , and high-stakes testing.

Hard ExamsTimed Online ExamsPop QuizzesCumulative FinalTake-Home Quizzes

Assessment risk

Strict

28/100

Low score means less forgiving assessment conditions.

In person

In-person reviews , and multiple tests or quizzes in the same week.

Pop QuizzesHeavy QuizzesTough TestsMultiple Tests Same Week
“multiple tests and ”
CHEM20
“you have 12 hours to complete”
CHEM20
“ ”
CHEM20

Online

, but also hard exams, a 4-hour exam window, quizzes, and a cumulative final.

Hard Exams4-Hour Exam WindowTake-Home QuizzesCumulative FinalChapter Quizzes
“ .”
CHEM20
“only allow you to take exams within a 4 hr time frame”
CHEM20
“4 exams, .”
CHEM20

Student evidence

See what students actually said.

Top student voice

“You are on your own in this class and have very little time like one week to get one chapter before he gives you a heavy quiz.”

Voice snapshots generated from 31 reviews, highlighting key themes in , and recommendation risk. Credibility rating: High.

🎯 Teaching Quality

29/100

“He does not interact with his students whatsoever, no email responses, no office hours, and just throws the textbook and and expects you to figure it out.”

⚠️ Recommendation Risk

30/100

“ .”

📚 Workload Pressure

22/100

“He gives so , especially if your a full time student.”

Theme 1

👨‍🏫 About Communication

  • He has never responded to any of my emails and .
  • , and no care for his students.
  • He barely shows up to office hours.

Theme 2

📚 About Workload

  • Lots of and doesnt grade your hard work on time!!
  • , and projects randomly.
  • He gives so

Theme 3

🧪 About Exams

  • exams and
  • only allow you to take exams within a 4 hr time frame
  • but that's because he wants you to learn.

Data context

See exactly what the AI read.

Analysis sample

31

Recent reviews read by the AI

31

Lifetime ratings

88/100

Evidence confidence

Thirty-one reviews with many recent detailed comments give strong evidence, though a cluster of 2024 positive reviews creates some disagreement.

Inside 31 stored ratings

Quality ratings

5 out of 52
4 out of 53
3 out of 57
2 out of 52
1 out of 517

Course coverage

CHEM2029 reviews
CHEM11511 review
CHEM12001 review

Reported outcomes

B range results lead the reported letter grades.

28 reported outcomes

A range

6

A 3 · A- 3

B range

9

B+ 5 · B 4

C range

2

C+ 1 · C 1

D range

2

D+ 1 · D- 1

F

1

F 1

No letter grade reported

8

Drop/Withdrawal 1 · Incomplete 1 · Not sure yet 6