Claudia Frietas

BIO20 · BIO30 · MARINEBIO · BIOLOGY20 · BIO100 · BIOL30 · MARINEBIOLOGY · WILDLIFEBIO30 · BIO7076 · BIO1B · WILDLIFEBIO · BIO31 · 33 lifetime ratings

AI rating: 58/100
RMP rating: 3.5/5
Take again: —
Difficulty: 4.5

The decision

if you are serious about biology and ready to work like it is a second job.

Best fit · Hardcore LearnerExtremely hardEnthusiastic for serious majorsHuge workloadTons of extra creditLong tough exams

Content-heavy marine and wildlife bio courses with .
Passionate teaching and field trips reward students who put in major effort.
Easy-A seekers and casual GE students often feel crushed and advise avoiding her.

Key questions

Four answers before you build your schedule.

Is this an easy A?

HardWork

32/100

As are rare without heavy study plus large amounts of , and many students struggle for a C or lower.

Is the course easy?

Challenging

24/100

Courses pack , and 200-question exams that students call killer.

Is attendance flexible?

WorthIt

68/100

Most strong reviews recommend her for motivated bio majors, while .

Course guide

See how this professor fits your week.

Grading

Strict

34/100

She is described as tough on points, hostile to grade haggling, and hard even .

Format shift

Workload

Heavy

22/100

, and second-job level time demands are common themes.

Format shift

Teaching experience

Good

72/100

, and inspiring despite a minority who find her snappy or unhelpful.

Format shift

Assessment method

FocusOnExams

78/100

Long practical and objective exams plus frequent pop quizzes dominate .

Format shift

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

33 reviews

High confidence · Best fit for Hardcore Learner

, and polarizing: excellent for dedicated majors, brutal for everyone else.

Main concern

, and weekend field time.

What students said

“She got me hooked on marine biology. She helped me realize my potential and I got my degrees in marine biology.”
BIO20

“CONSIDER YOURSELF WARNED. taking this class is like taking a second job.”
BIO20

“Very hard teacher, but if you show up to class and study your material you can pass. Plus there's tons of .”
BIO30

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.

Exams are long, dense, and high-stakes, with frequent quizzes and .

Long exams200-question testsPop quizzesHeavy memorizationPractical and objective sections

Assessment risk

Strict

28/100

Low score means less forgiving assessment conditions.

In person

as extremely long and difficult with heavy memorization and frequent quizzes.

200-question examsPop quizzes almost dailyPractical and objective sectionsNo easy test review

“The exams are 200 questions (100 practical, 100 objective.)”
BIO20

“when she's expecting you to do 200 question exams”
MARINEBIOLOGY

“Almost everyday has a . and pointless.”
BIO7076

Online

Student evidence

See what students actually said.

Top student voice
“Yes this class is hard and you have to work for your grade, but it also had to of been the most interesting and fun course I have so taken.”
Voice snapshots generated from 33 reviews, highlighting key themes in teaching, difficulty, and fit for majors. Credibility rating: High.

🎯 Teaching Quality

72/100

“She infects you with her enthusiasm for the subject, making you want to study harder and make her proud.”

🧱 Difficulty & Grades

32/100

“Be prepared to bust your hump on just to earn a C.”

📚 Workload

22/100

“taking this class is like taking a second job. requires too much of your own time and the .”

👍 Recommendation

68/100

“ if you are really serious about biology.”

Theme 1

👨‍🏫 About Teaching Style

She infects you with her enthusiasm for the subject
she is very clear, definitely fun, one of the
Very strict, but very engaging.

Theme 2

📈 About Difficulty & Grades

jars, bones of whales
This lady will bust your ass.
there were only 3 A's in our class

Theme 3

🧭

if you are really serious about biology.
if intrested in .
Don't take Bio 30 unless you're a Bio major

Data context

See exactly what the AI read.

Analysis sample

Recent reviews read by the AI

Lifetime ratings

82/100

Evidence confidence

Thirty-three reviews span several years with consistent themes on difficulty, workload, and major-focused value.

Inside 33 stored ratings

Quality ratings

5 out of 511

4 out of 512

3 out of 51

2 out of 54

1 out of 55

Course coverage

BIO2013 reviews

BIO306 reviews

MARINEBIO3 reviews

MARINEBIOLOGY3 reviews

BIO1001 review

Show 7 more courses

BIO1B1 review

BIO311 review

BIO70761 review

BIOL301 review

BIOLOGY201 review

WILDLIFEBIO1 review

WILDLIFEBIO301 review

Reported outcomes

No letter grade reported results lead the reported letter grades.

1 reported outcomes

A range

No reported values

B range

No reported values

C range

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D range

No reported values

F

No reported values

No letter grade reported

Not_Sure_Yet 1

Claudia Frietas

x x x if you are serious about biology and ready to work like it is a second job.

Four answers before you build your schedule.

HardWork

Challenging

Recommended

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

🧱 Difficulty & Grades

📚 Workload

👍 Recommendation

👨‍🏫 About Teaching Style

📈 About Difficulty & Grades

🧭 x x x x

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

if you are serious about biology and ready to work like it is a second job.

🧭