2.0

Brian Hentschel

Biology - San Diego State University

2.0
Quality
4.3
Difficulty
7%
Would Retake
107
Reviews
2.0
Quality
4.3
Difficulty
1.9
Helpful
2.1
Clarity

7%

Would Retake

107

Reviews

Rating Distribution
Official
107 total ratings

5

14

4

7

3

11

2

11

1

64

What Students Say

OK basically I want to chop his ponytail off for multiple reasons

BIO204 - 1.0 rating

The topics for the 2nd half of the class should have been very interesting but this guy just butchered it with his monotone voice, attitude, and overall horrible teaching style

BIO204 - 1.0 rating
Class Info

Online Classes

100%

Attendance Mandatory

82%

Textbook Required

3%

Grade Predictor

Your expected effort level

LowHigh

Predicted Grade

B

95% confidence
Based on 29 grades
Most common grades:
Not sure yet (15)
A (7)
C (5)
Grade Distribution
A(8)B(4)C(11)D(0)F(0)A-/B+(6)
Based on 45 reported grades
Not sure yet: 15
A: 7
C: 5
B+: 3
Common Tags
Tough grader (31)
Lecture heavy (24)
Skip class? You won't pass. (23)
Test heavy (23)
Lots of homework (13)
Get ready to read (11)
Beware of pop quizzes (4)
Participation matters (4)
Rating Trend

Declining

-1.85 avg change
May
Jan
Apr
Jan
Nov
Dec
Last 6 months
Ratings by Course

BIO201515

5.0

(1)

BIOL324

5.0

(2)

CHEM515

5.0

(1)

INVERTS

5.0

(1)

515

4.0

(2)
+15 more courses
Difficulty by Course

MARINEINVERTS

5.0

INVERSECT

5.0

BIO516A

5.0

515

4.5

516A

4.5

Reviews (106)
4.0
3.0
BIO201
May 6, 2003

No Comments

2.0
4.0
BIO201
May 6, 2003

No Comments

4.0
3.0
BIO201
May 19, 2003

Goes fast, but cracks jokes fairly often. Can be fun. Lots of info -- do NOT miss class!

3.0
3.0
BIO201
Aug 10, 2003

Good professor. Kind of has an attitude and always looks like something is up his sleeve. He likes to put tricks on tests. Study hard and attend all classes. He has pop quizes.

2.0
4.0
BIOL201
Sep 3, 2003

He has an attitude, puts unfair questions on tests, goes too fast to copy his slides and won't post them for you. He will not narrow down what will be on test and he covers so much material & references sources not in assigned text.

3.0
4.0
BIOL515
Nov 25, 2003

No Comments

5.0
4.0
BIOL515
Mar 31, 2004

Dr. Hentschel is a great professor, probably the best that I've ever encountered. Surely he is difficult, but who wants a pushover for a professor?? I want to learn and appriciate what he brings to a course. I love Dr. Hentschel, he is the best

5.0
4.0
BIOL515
Apr 8, 2004

Everyone just says that Dr. Hentschel is difficult because he actually wants a student to learn. If one studies, he or she should pull through with little difficulty. His exams are straight forward, and go talk to him...he's not as bad as people think.

5.0
4.0
BIO201
Apr 18, 2004

made class fun, constantly reviewing past material in class which really helps you remember it. enthusiatic about teaching

2.0
4.0
201B
Apr 23, 2004

His tests suck! Definately go to class and pay attention it will pay off in the end. I wouldn't recommend him.

1.0
5.0
BIO515
May 13, 2004

HORRIBLE, HORRIBLE, HORRIBLE

3.0
5.0
BIO201B
May 22, 2004

the worste out of the 3 professors. hard test and very low average but he doesn't curve! do not take this class if he is teaching it.

3.0
4.0
BIO201B
May 24, 2004

deffinately the hardest of the 3 teachers. tons of info and tests on the details instead of main points. interesting style of teaching makes class somewhat interesting. dont miss lecture or ur screwed.

4.0
3.0
BIO201B
May 24, 2004

Really excited about teaching. Most interesting material and reviews alot to make sure you understand

2.0
5.0
BIO201
Aug 31, 2004

this guy sucks. he is the WORST out of the 3. once accused me of cheating on a quiz because he said i wrote my "y" like a girl's sitting next to me even though our other 3 answers were different from each other. oh, and it was a 5 pt quiz. do NO

5.0
4.0
BIO201515
Nov 11, 2004

Dr. Hentschel is my favorite professor of all time. He is very helpful, and until you want to do well...you will not. He is not easy, but college is meant to be difficult and challenging. You need to actually try when it comes to Hentschel, as one should all the time! I love Dr. Hentschel...!!

1.0
5.0
BIO515
Dec 13, 2004

he sucked

5.0
1.0
BIOL324
Mar 14, 2005

I think most of you must be talk'g about the wrong teacher, because this guy is wonderful. He is so easy and gives you the notes to the lectures. I am a C student and getting an A in his class. He is very fun. Starts the class off with a recorded song related to the lecture. Great Teacher!

5.0
3.0
BIO201B
Apr 14, 2005

Pretty good teacher. He did the Invertebrates part, and it wasnt too difficult. Do the study q's.

2.0
4.0
BIOL201B
May 12, 2005

this guy is weird. he tries to be a hard ass in the beginning but he's all talk. don't bother taking notes from the slides. he posts the notes online and there's way too much info to copy down anyways.

5.0
1.0
BIOL324
Jun 4, 2005

Easy A. Easier B. Advice... Print the notes he puts on BB. Taken them 2 class & write additional notes on this. Don't waste time writing your own notes. 2 much info 2 write down. GO 2 CLASS. Even though notes are on BB there is some info given not on notes. Test are easy, but this makes U remember & learn material better. GREAT CLASS.

5.0
3.0
CHEM515
Aug 27, 2005

Hentschel is the BEST EVER!! i wish that he taught more classes...i'd sooo be there... just study...pretty much like you have to do in EVERY class....gees, we are science majors....duh!!

3.0
4.0
MARINEECOLOGY
Sep 18, 2005

The class is cool but the labs are uselessly statiscly based and the lab time was the only time I had to use the computer programs so it sucked! I took marine biology at CSUN and used the same book and got a B. This teacher is tough but fair, you have to study, really study!!

5.0
3.0
BIO515
Sep 22, 2005

I took this class because he was teaching. I had him for Bio 201B and had a blast. Power point is actually interesting.

4.0
5.0
MARINEINVERTS
Oct 7, 2005

This class had a huge work load (when I took it in 2004). If you keep on top of it, it's not that bad, just don't miss a single class! Dr. Hentschel lacks a little bit in the personality dept., but he's not that bad. I got a decent grade even though I was put at the "dumb kids table" at the back of the class. That's right, he assigns seating based on a graded quiz given at the begining of the semester.

5.0
4.0
515
Nov 20, 2005

hentschel is hot!! but study. its biology...he's absolutely great!!

5.0
4.0
INVERTS
Dec 22, 2005

Brian is a great prof, but you have to know a LOT. Only take this class if you're already interested in the subject. The daily quizzes are the greatest annoyance. For lab practicals you only need to study your lab notebook. There aren't really any questions covered in the lecture notes that aren't also covered in the lab book. Have fun!

2.0
4.0
BIO515
Jan 10, 2006

If at all avoidable, do not take this class with him. He is extremely unhelpful and if you don't kiss his ass, you will not get an A. He is a tight ass and thinks he is the smartest person in the world. He loves to look down on his students and use his red pen.

4.0
5.0
INVERSECT
Dec 19, 2007

Hard class. Plan on dedicating your whole semester to him.

3.0
4.0
BIOL204
May 16, 2012

Taught the inverts portion of organismal bio and makes his portion the hardest seemingly on purpose...he can really be kinda deuschy although once and a while he makes a good joke. But even that doesn't make up for having to fill your brain with useless information. Unless you actually care about invertebrates prepare to be bored out of your mind.

2.0
5.0
BIO204
May 23, 2012

Takes an absolutely interesting subject and bores you to death. Makes jokes which only he finds funny. Purposefully gives trick questions on the exam which he takes great pride in explaining later. Is way way too interested in animal copulation. Sucks, you must be nice to him if you're a bio major, he is big guns in the research area.

2.0
5.0
BIO204
Grade: B
May 7, 2016

he is really good at taking subject matter that should be really interesting and making it the most boring lectures ive had to sit through. he makes awkward jokes and it is very unclear what we need to know for the tests. he just reads off his powerpoint and isnt very good at answering questions.

3.0
3.0
BIOL204
May 9, 2016

Hentschel is def a little weird. He taught the second half of 204 and he liked to sprinkle weird jokes into super boring lectures (especially in the animal copulation section). He knows his stuff, but he's such an awkward lecturer. He gives 6 "pop" quizzes on blackboard that go straight on the test. Sorry, bio people, you can't really avoid him.

3.0
4.0
BIO204
May 13, 2016

He's not really that bad, just goes over a lot of information. Going to lecture really helps on the test even though it might feel like he's just reading the slides - at least that's what I found. People were unhappy with him because Ekdale did such a good job on the first half of the course - so yeah he's a bit boring but definitely not awful.

3.0
4.0
BIO204
Grade: B+
May 13, 2016

Prof. Hentschel taught the 2nd half while Prof/ Ekdale the 1st half. His teaching style is very boring and just reads off slides. He goes very in depth in content material, which is difficult when it comes for exams. The 4th exam, aka the Final is not cumulative. He begins every lecture with classic rock music. Don't bother taking notes; read ppts

3.0
3.0
BIO204
Grade: C
May 17, 2016

The lectures were extremely long & boring. The questions on the quizzes/tests are pretty straightforward; what makes them hard is the fact that he expects you to remember a ton of information, even though some of it is pretty useless. For example, 1 test question was what taxon had the most species in it? When would ANYONE need to know this at all?

1.0
4.0
BIOL354
Grade: Not sure yet
May 8, 2017
Wouldn't take again

Hentschel gives me EXTREME anxiety - he is a horrible and RUDE professor that does not spark anybody's passion in ecology/biology at all. Although the course itself is not too difficult, Hentschel made it excruciatingly painful, unpleasant, and boring. Horrible learning environment.

Skip class? You won't pass.
LOTS OF HOMEWORK
LECTURE HEAVY
1.0
5.0
516A
Nov 20, 2017
Wouldn't take again

He's just rude. Avoid if possible.

Tough Grader
LOTS OF HOMEWORK
LECTURE HEAVY
2.0
5.0
BIOL515
Jan 7, 2019
Wouldn't take again

You have to learn an insane and almost impossible amount of information for this class. He docs points for the smallest of mistakes on tests and on assignments. Maybe the most work and memorization I've ever had to do for a class. Plan on being in lab the entire time and you have to get your notebook signed by him before you leave.

Tough Grader
Skip class? You won't pass.
4.0
3.0
BIO515
Grade: A
Feb 28, 2019
Would take again

I think I'm probably the only person who thoroughly enjoyed this class. Hentschel is kind of a boring lecturer and not very approachable, but all the material you need to know he gives you in the lab manual. I opened the book maybe once. His pop quizzes are annoying and anxiety inducing, but it really does keep you on top of the material.

Skip class? You won't pass.
Beware of pop quizzes
EXTRA CREDIT
1.0
5.0
BIO204
Apr 24, 2019
Wouldn't take again

he is the worst human being, i think he is over compensating for something. he keeps pausing in class and starting at students to like intimidate them, he flashes a laser pointer at students, and all over just awful. You are not going to learn anything in his class, he literally reads his own slides.

Skip class? You won't pass.
Lecture heavy
1.0
3.0
BIOL204
Grade: A-
Apr 25, 2019
Wouldn't take again

I would say he has to be one of the absolute worst teachers i have had in my time at SDSU. He has no passion for the subject he teaches, and literally just reads off his own slides. He makes his exams exceedingly hard, making you memorize the tiniest facts, and berates the entire class for not being "smart enough" when the average is a 53%. Avoid!!

Lots of homework
Skip class? You won't pass.
Lecture heavy
1.0
4.0
BIO204
Apr 26, 2019
Wouldn't take again

I don't normally feel strongly enough about a professor to write a review but let me tell you this prof is a real pain. He has a very immature way of calling people out in class for being on a laptop and wastes so much of class with his monotone, super slow lecturing. He has no passion for the subject and makes the test MUCH harder than needed.

Get ready to read
Skip class? You won't pass.
1.0
5.0
BIO204
Grade: A-
Apr 30, 2019
Wouldn't take again

He is probably the worse teacher I have ever had. He berates students in class and tells us we're not trying hard enough when the class average on a test is 50%. He is extremely monotone and has a way of making something that is interesting sound so boring, he does not teach he just reads off his slides and expects you to remember everything! Avoid

Skip class? You won't pass.
Lecture heavy
Tough grader
1.0
5.0
BIOL204
Grade: Not sure yet
May 1, 2019
Wouldn't take again

Absolutely, by all means, do NOT take this class. The tests are near impossible to pass and his lectures are incredibly boring. He "intimidates" students in class like a weird uptight high school teacher and its embarrassing to say the least (he ran up to a student to shut their laptop during lecture one time). Worst professor at state.

Skip class? You won't pass.
Lecture heavy
Tough grader
1.0
4.0
BIO204
Grade: Not sure yet
May 3, 2019
Wouldn't take again

A really, really terrible professor that leaves students heavily confused at the end. The only real purpose of going to the lectures are the iclicker quizzes, anything else is worthless as you wont be retaining any information from his teaching. Learning about animals should have been interesting but he pretty much ruined it. Avoid if you can!

Get ready to read
Tough grader
1.0
5.0
BIO204
Grade: Not sure yet
May 5, 2019
Wouldn't take again

I was motivated to go and make sure that this prof. had a bad review by yours truly. - unprofessional and rude to students and disruptive to learning environment - monotone and puts next-to-no effort into his lecture slides - little to no communication and the worst professor I have encountered - I COULD GO ON FOR DAYS

Lots of homework
Lecture heavy
1.0
4.0
BIO204
Grade: B+
May 6, 2019
Wouldn't take again

I've never felt so strongly for a professor before. He doesn't care about what he's teaching, he spends more time trying to call out students who are doing other things than paying attention to his boring lectures. Please avoid this guy if you can, you'll be doing yourself a favor.

1.0
5.0
BIO204
Grade: Not sure yet
May 6, 2019
Wouldn't take again

I looked forward to the second half of bio204 because of high praise by previous students who had prof. EKDALE. After his first lecture, I have dreaded coming to class (clicker attendance). Hentschel has done nothing but discourage, humiliate, and outright blame students and technology for low averages. He does not realize that HE is the PROBLEM.

Get ready to read
Lecture heavy
1.0
5.0
BIO204
Grade: C+
May 6, 2019
Wouldn't take again

Gives no guidelines or study guide for tests. Cares more about getting students in trouble than teaching them. Talks slow, extremely boring.

Skip class? You won't pass.
Test heavy
Tough grader
1.0
5.0
BIO204
Grade: Not sure yet
May 8, 2019
Wouldn't take again

He is a TERRIBLE professor- without a doubt the worst professor I have ever encountered and quite possibly one of the worst humans. All he cares about is getting students in trouble and humiliating them in front of the class for laptop use or talking. He just reads off his slides and blames his 50% test average on us. Absolutely avoid at ALL costs

1.0
5.0
BIO204
May 10, 2019
Wouldn't take again

If we were to make a tier list of the professors at SDSU this dude would be garbage tier. Literally the worst professor I have ever had during my time at this school. His tests are insanely hard compared to the 1st half of the Bio204 course and somehow his lectures are even more boring. Only post I've ever made on RMP and I did it cuz he sucks much

Tough grader
1.0
4.0
BIO204
May 11, 2019
Wouldn't take again

No professor has irked me to the point of writing an RMP until this one. The topics for the 2nd half of the class should have been very interesting but this guy just butchered it with his monotone voice, attitude, and overall horrible teaching style. He expects students to know every little detail and gives no effort in answering student questions

Lecture heavy
Tough grader
1.0
4.0
BIO204
Grade: A-
May 12, 2019
Wouldn't take again

OK basically I want to chop his ponytail off for multiple reasons. 1st being that he gives poor study tips, so poor that average exam 1 score was 50%. He thinks that is ok just bc one student/transformer scored 100%. 2nd, he's extremely condescending and seems to enjoy degrading students. Lastly, some lecture info doesn't match the text #concerned

Test heavy
Lecture heavy
Tough grader
1.0
5.0
BIOL204
Grade: C
May 12, 2019
Wouldn't take again

DO NOT TAKE THIS CLASS WITH HIM. Expects you to know every single thing he lectures. One question on the exam was which group had the least amount of species?! Average for 1st exam was 53%. No curve. Super monotone and reads everything off slides so slowly. Gives clicker questions every class but gives you about 3 sec. to answer. Take with eckdale.

Get ready to read
Skip class? You won't pass.
Lecture heavy
1.0
3.0
BIO204
Grade: A
May 13, 2019
Wouldn't take again

Terribly boring lectures as he reads directly off of his PowerPoints and adds no enthusiasm. Class isn't hard if you study for tests. Attendance is only mandatory because he uses clickers. He is very condescending and also makes extremely inappropriate jokes that make all students very uncomfortable. Avoid him if you can, but usually not possible!

Lots of homework
Participation matters
Clear grading criteria
1.0
4.0
BIO204
Grade: A
May 13, 2019
Wouldn't take again

This guy is so rude to students and should not be a teacher!!! You do not need this kind of negativity in your life so stay away!!! In addition to 1000000 hw assignments and clicker points, he tests very hard so it will be a struggle to get a good grade. Probably one of the worst teachers I've ever had just by how rude he is.

Lots of homework
Participation matters
Test heavy
1.0
4.0
BIO204
May 14, 2019
Wouldn't take again

Just don't!! Avoid this professor if possible. He is rude to students & lectures are very boring. His exam are extremely hard!!! Go to lecture to get the clicker points and do the assignments so you at least have an opportunity of passing the class.

Lots of homework
Test heavy
1.0
4.0
BIO204
May 14, 2019
Wouldn't take again

Hentschel is one of the worst professors I have ever encountered. He makes jokes that just makes the class uncomfortable, is very monotone, and is one of the rudest human beings I have ever encountered. Try and avoid taking his classes, you honestly won't learn anything and will hate your life. I've never despised a prof so much until I had him.

Lots of homework
Tough grader
1.0
4.0
BIO204
Grade: Not sure yet
May 15, 2019
Wouldn't take again

If i could give him a 0/5 i would. Hands down the worst professor I have ever taken. Takes semi interesting material and finds a way to make it boring. Rude to students. Class average for a test was 50%, you have to know EVERYTHING, because he refuses to provide study guides/hints.

1.0
5.0
BIO204
Grade: Not sure yet
May 15, 2019
Wouldn't take again

The first half of this class was taught by Dr. Lluvia Flores Renteria (who is amazing!!), the second half is taught by Hentschel. Professor Hentschel is one of the worst professors I have encountered at state. He is mean to his students, teaches such an interesting topic in such a boring way, and makes inappropriate jokes. Very toxic experience

1.0
4.0
BIO204
May 15, 2019
Wouldn't take again

Probably the WORST professor you will ever experience in your college life. He has no regard for the learning environment of students as he just reads off slides without further elaboration and gives no effort to answering questions. He endangers student safety by pointing lasers at their face. A disgrace to professors everywhere. Please avoid him!

Skip class? You won't pass.
Lecture heavy
Tough grader
1.0
4.0
BIO204
May 15, 2019
Wouldn't take again

all he does is just read off the slides, making his lecture's boring and uninteresting. literally only reason why I went was because of iclicker points. his tests are super specific and he does not provide a study guide or anything. he has a tendency of being rude to students. expect to be called out if you're on your phone or talking.

1.0
4.0
BIOL204
May 15, 2019
Wouldn't take again

MOST AWFUL PROFESSOR EVER!!! Do not, and I mean DO NOT take him. I have had bad professors in the past, but this is a professor who genuinely does not care about his students one bit. Would rather cause anxiety and stress than help. Gets mad at us when we leave bc he goes past the class time and test is nothing like hw or clicker questions. AVOID.

Lots of homework
Skip class? You won't pass.
Tough grader
1.0
5.0
BIO204
Grade: Not sure yet
May 15, 2019
Wouldn't take again

Worst professor I have had in my entire undergraduate career. Incredibly rude, arrogant and disrespectful to students. He is a horrible lecturer and his exams do not reflect the lecture material at all. Has no desire to help students learn and instead derives pleasure from making inappropriate jokes and embarrassing students in front of the class.

1.0
4.0
BIO204
Grade: Not sure yet
May 15, 2019
Wouldn't take again

Mandatory attendance. With each lecture he posts an outline of terms you need to know EVERYTHING about (300-400/test). He then procedes to ask unnecessarily specific test questions regarding specific animals he covered for about 10 seconds in lecture. 50% class average on first test. No study guides, assuming its bc he knows theyd be useless anyway

Lots of homework
Skip class? You won't pass.
Test heavy
1.0
4.0
BIO204
May 16, 2019
Wouldn't take again

It seemed that "Dr." Hentschel developed an unsettling hatred for our 300 student lecture because a handful of students used their phones or laptops during his deathly monotone and uninspired lectures. This left the entire class suffering for the remainder of the semester, as "Dr." Hentschel is less a doctor/professor and more an insecure bully.

Lots of homework
Get ready to read
Tough grader
1.0
5.0
BIO204
May 20, 2019
Wouldn't take again

Don't ever take your friends clicker into class or use your laptop/phones/speak. He is a bully and rather spend lecture making the entire 300 student body anxious and uncomfortable than take time into teaching and helping us. He is condescending and flat out mean and his tests are incredibly hard. Don't bother asking questions, he won't answer them

Skip class? You won't pass.
Test heavy
Tough grader
1.0
5.0
BIOL204
Grade: Not sure yet
May 21, 2019
Wouldn't take again

Take this class with literally ANYONE else. Avoid him at all costs. wait for the semester when Ekdale is teaching. His tests are ridiculously hard with no guide of what to study and on top of it he makes the entire class feel stupid for not knowing the material. Don't ever talk or even breathe wrong in his class or he'll call you out for it.

Skip class? You won't pass.
Tough grader
1.0
5.0
BIO204
Grade: Not sure yet
May 21, 2019
Wouldn't take again

I dont have enough expletives for this sorry excuse for a man. The worst professor In existence.

Tough grader
1.0
5.0
BIO204
Grade: Not sure yet
May 21, 2019
Wouldn't take again

If you are easily triggered by sexual references please do not take a class with him. He made many people feel uncomfortable with his phallic jokes up to the point where people skipped class. He also placed TAs to catch anyone who had additional clickers, so you will want to make every class. Do yourself a favor and take this course with Ekdale.

Skip class? You won't pass.
Test heavy
Tough grader
4.0
4.0
BIO515
Grade: B+
May 24, 2019
Would take again

I think I was one of the few people to enjoy this class. I can definitely see the fear in taking a class about boring invertebrates, but the fact that there are live specimens for each class was a complete game changer. The only annoying thing is his quizzes at the beginning of each class period, there's A LOT so they can make or break your grade.

Participation matters
Skip class? You won't pass.
Tough grader
1.0
5.0
BIO204
Grade: C+
May 24, 2019
Wouldn't take again

He was the worst teacher I have ever had in all my years of school. His lectures were extremely boring and he read straight from the slides. He was passive aggressive as well as degrading towards the entire class, he essentially called us stupid. Exams were impossibly hard with no study guide or guidance to prepare yourself. Truly an awful teacher

Lots of homework
Test heavy
Tough grader
1.0
4.0
BIOL204
May 26, 2019
Wouldn't take again

Worst class I've ever experienced. He is rude, boring, and enjoys degrading students and blaming them for failing his tests when the average was 50% with no curve. He makes way too many sexual jokes and doesn't allow laptops or phones in lecture AT ALL. No study guides for exams that are insanely hard and way too specific. AVOID AT ALL COSTS.

Lots of homework
Get ready to read
Skip class? You won't pass.
1.0
3.0
BIO204
Grade: Not sure yet
Mar 18, 2020
Wouldn't take again

worse person ive ever had the misfortune of meeting

1.0
4.0
BIO204
Apr 27, 2020
Wouldn't take again

Run... thats it. Thats the rating.

Lecture heavy
1.0
5.0
BIO204
Apr 28, 2020
Wouldn't take again

I dont really rate professors, but I had nightmares after my first lecture with him. Scary.

Get ready to read
Test heavy
Lecture heavy
1.0
5.0
BIOL204
May 13, 2020
Wouldn't take again

Extremely hard class, don't understand how he expects us to learn all this information and then make his exams EXTREMELY specific and difficult. If you were to cheat and try using your notes, you would definitely still fail. Wouldn't recommend at all. He is very rude and doesn't seem to care much about his students

Beware of pop quizzes
Lecture heavy
1.0
5.0
BIO204
May 14, 2020
Wouldn't take again

Hes super demeaning, does not care about his students at all. His exams are too specific and not fair game at all. Really uses his tenured status to his advantage to make you wonder how you made it to college. He literally gives me depression, avoid him at all costs.

Skip class? You won't pass.
Beware of pop quizzes
Tough grader
1.0
5.0
BIO204
May 15, 2020
Wouldn't take again

This man goes out of his way to make the tests incredibly difficult. He uses groups of animals that were hardly discussed in class as multiple choice options on the test. So, if you study your notes you will still feel extremely unconfident. Did not show any compassion for classes going online. Get deathly sick and ask for a hw extension? "Too bad"

Lots of homework
Skip class? You won't pass.
Lecture heavy
1.0
5.0
BIO204
May 15, 2020
Wouldn't take again

Median Final Exam average 62.8%. Directly from the email he sent us after grading the final, "Students might wonder if Exam 4, which was more difficult than the previous three exam will be "graded on a curve". The answer is no." Good luck with this required class!

1.0
5.0
BIO204
Grade: B-
Jun 5, 2020
Wouldn't take again

no. just no. he's rude and does not care about his students. SDSU needs to do something about this professor. Sure he may be knowledgeable, but he boasts it in a sense where his teachings do not correlate to tests or any kind of useful info students need to excel in any STEM major. awful. terrible. DO NOT TAKE HIM.

Test heavy
Lecture heavy
Tough grader
1.0
5.0
BIOL515
Feb 4, 2021
Wouldn't take again

not sure why this dude seems to have a hatred for teaching and for all of his students. assumes the worst of students and won't tolerate any deviations. miss class with valid excuse? doesn't care and won't give you the info on what you missed. need clarification for a test? no study guide is given. not a pleasant teacher and sdsu won't remove him

Tough grader
1.0
5.0
BIO204
Apr 13, 2021
Wouldn't take again

STAY AWAY FROM HIM AND YOU WILL BE FINE

Test heavy
Lecture heavy
So many papers
1.0
5.0
BIO204
Apr 27, 2021
Wouldn't take again

prefer taking this course with anybody else. Do not take this professor if you don't want to memorize everything. The average for his classes is C which is crazy. beware beware

Test heavy
Lecture heavy
So many papers
1.0
5.0
BIO204
Grade: C
May 12, 2021
Wouldn't take again

The worst professor I have ever taken at SDSU. never met a teacher who is excited to set up students to fail. To even attend office hours you had to ask questions that he hadn't answered yet, so no asking for clarity. made the class extra hard in an online format but gave students no extra help. Never take him or expect to fail the class.

Skip class? You won't pass.
Test heavy
Tough grader
2.0
4.0
BIOL204
Grade: C+
May 21, 2021
Wouldn't take again

Dr. Hentschel's exams are very specific even though he pretty much just reads from the lecture slides. He never owns up to his own mistakes and blames issues on the students. He is not the worst professor I've ever had, but I would definitely do what I could to avoid taking a class with him again. Just doesn't care that much about his students.

1.0
5.0
BIO204
Grade: C-
May 28, 2021
Wouldn't take again

dont do it. wait. everyone failed

Get ready to read
Skip class? You won't pass.
Lecture heavy
1.0
3.0
BIO204
Grade: A+
May 31, 2021
Wouldn't take again

Some ppl complain tests are too crazy/specific. Definitely right in some aspects, but in others, no. Like 25-50% of questions on big exams came from prior quizzes (which had 2 attempts). Read textbook for first half of his part, skip second half. Frequent, short-burst studying is your bff. Student-unfriendly, uncaring prof. Used Respondus.

Test heavy
1.0
5.0
BIO516A
Grade: A
Dec 20, 2021
Wouldn't take again

This Teacher very unorganized. They say good teachers know their material, but excellent teachers know their students. He only knows his material. Do NOT TAKE THIS CLASS . Actually take it and see for your self,

Get ready to read
Test heavy
Tough grader
1.0
5.0
BIO516A
Grade: C
Feb 1, 2022
Wouldn't take again

If you can, even if you need to take an extra semester, avoid taking one of his classes. He'll tell you that you can get a C by doing everything except the tests, this is true. However, if you're a bio major, you can't do pass or no pass. His tests questions are not covered in lecture and due dates will be mid day, NOT 11:59, no exceptions.

Participation matters
Skip class? You won't pass.
Graded by few things
1.0
5.0
BIO204
May 18, 2022
Wouldn't take again

Avoid at all costs. Whatever you can do. Dont take it.

2.0
4.0
BIO204
Grade: B-
May 19, 2022

I don't think that he deserves as bad of a rep that he gets but the way he teaches this class is very frustrating. To be fair, a lot of his questions are hidden in his power points but most of them are extremely irrelevant. He makes you feel really stupid even though you're trying your best. Do not take this class with him!

Tough grader
Get ready to read
1.0
5.0
BIO204
Grade: C-
May 20, 2022

Worst teacher I have ever had! Avoid at all costs! Could care less about a students well being, extremely rude, just terrible!

1.0
5.0
BIO204
Grade: B
May 23, 2022

This class made me feel stupid along with the lab. He has really high expectations which I only believe I could achieve if I treated this class as a full time job. Average of the class= C, so make sure to do well on exams. He tries to be funny and get our attention in lecture but its impossible with this tone and the way we felt about this class.

Lecture heavy
Test heavy
5.0
4.0
BIO204
Grade: A
May 23, 2022
Would take again

Memorize the lectures. Dr. H is a great professor who really cared about the subject matter, I felt that his exams were fair but EVERYTHING in his lectures were fair game for exam questions (fair). Getting a good grade is possible but don't study last minute, take your time with the material, ask questions and do the HW and you will be fine!

Lecture heavy
Test heavy
Accessible outside class
1.0
5.0
BIOL204
Grade: C
May 24, 2022

Just no. His exams are so difficult because he choses such irrelevant/insignificant details to test you on. You don't have to read the textbook but he mentions that the lectures don't cover all of what is on the exam, so it is good to do so. Not to mention, he just does not care about his student and will give you no sympathy for ANYTHING.

Tough grader
Lecture heavy
Test heavy
1.0
5.0
BIOL204
Grade: C-
May 31, 2022

No !!!!!!!!!!!!!!!!!!!!!!!!!!

Tough grader
Test heavy
3.0
5.0
515
Grade: Rather not say
Jan 3, 2023

You have quizzes EVERY class session and several exams, two single page papers to write and no HW. The exams consists of 80-100 or so specimens that you need to identify, know phenotype, and function. For me personally, it was a lot and I am actually interested in marine science. Take this class with caution, trust me, it is a difficult class.

Tough grader
Beware of pop quizzes
Test heavy
5.0
4.0
516A
Grade: A
Apr 29, 2024
Would take again

Super interesting lectures. Easy to email for feedback on assignments. Very knowledgeable

Tough grader
Gives good feedback
Accessible outside class
5.0
4.0
516A
Grade: A
Jan 27, 2025
Would take again

Engaging lectures and approachable for feedback. Paired unstuck AI with the free textbook for great study prep. Worth attending class to grasp the material well.

1.0
5.0
516A
Nov 15, 2025

If you are looking for an easy chill lab senior year, this class is not it. Everyone ends up falling asleep in this class. Lectures are tough and not engaging and labs ARE pointless. He grades insanely hard and expects you to memorize every detail from 18–20 pg articles on top of lec + labs. As a 4-unit class, it can really hurt your GPA. AVOID.

Tough grader
So many papers
Lecture heavy
1.0
5.0
BIO516A
Grade: Not sure yet
Dec 9, 2025

If you want to have 50 question, 50 min tests and be tested on memorizing multiple 10-20 page research articles + everything in the lectures, then this course/professor is for you! DONT take this class even if you are actually interested in marine bio. Mostly everyone does bad on the exams (shocker) and no curves. Straight up a GPA terrorist

Tough grader
Get ready to read
So many papers
1.0
5.0
BIO516A
Dec 10, 2025

He's rude condescending, and belittles students for not instantly understanding the material. Takes points off & extremely hard grader. Class is 5 H Mon, 1 H Wed + 2 more for lab groups - unbelievable. Impossible exams, mid-day deadlines, and expects undergrads to design full research experiments with little guidance. His smile creeped me out.

Tough grader
Lecture heavy
Test heavy
1.0
5.0
BIO516A
Dec 14, 2025

Do yourself a favor and read the other reviews. Major red flag. Please do not risk your time and effort for this class just to get a "C". He doesn't believe in student success and loves to see students fail. Does not care at all and thinks his class is the "best". After all these negative reviews, I do not know how he is still a professor.

Lots of homework
Lecture heavy
Test heavy
1.0
5.0
BIO516A
Dec 18, 2025

Just like the other reviews said, majority of this class was UNBELIEVABLY hard. The material is not hard and the class itself should not be He just has a way of making everything overly difficult and complicated for no reason. Please do not take this class even if it's your last choice. There are so many other options, wait a sem or wtv. PLZ.

Tough grader
Test heavy
Class Info

Online Classes

100%

Attendance Mandatory

82%

Textbook Required

3%

Grade Predictor

Your expected effort level

LowHigh

Predicted Grade

B

95% confidence
Based on 29 grades
Most common grades:
Not sure yet (15)
A (7)
C (5)
Grade Distribution
A(8)B(4)C(11)D(0)F(0)A-/B+(6)
Based on 45 reported grades
Not sure yet: 15
A: 7
C: 5
B+: 3
Common Tags
Tough grader (31)
Lecture heavy (24)
Skip class? You won't pass. (23)
Test heavy (23)
Lots of homework (13)
Get ready to read (11)
Beware of pop quizzes (4)
Participation matters (4)
Rating Trend

Declining

-1.85 avg change
May
Jan
Apr
Jan
Nov
Dec
Last 6 months
Ratings by Course

BIO201515

5.0

(1)

BIOL324

5.0

(2)

CHEM515

5.0

(1)

INVERTS

5.0

(1)

515

4.0

(2)
+15 more courses
Difficulty by Course

MARINEINVERTS

5.0

INVERSECT

5.0

BIO516A

5.0

515

4.5

516A

4.5

Similar Professors