3.0

Jeffrey Stopple

Mathematics - University of California Santa Barbara

3.0
Quality
3.6
Difficulty
29%
Would Retake
83
Reviews
3.0
Quality
3.6
Difficulty
3.1
Helpful
2.9
Clarity

29%

Would Retake

83

Reviews

Rating Distribution
Official
83 total ratings

5

25

4

15

3

11

2

7

1

25

What Students Say

His goal doesn't seem to be to help students succeed but rather to make them hate math so much that they switch out of the BS major

MATH118AB - 2.0 rating

He may be a very smart may but he is an abysmal educator

MATH118B - 2.0 rating
Class Info

Online Classes

100%

Attendance Mandatory

26%

Textbook Required

86%

Grade Predictor

Your expected effort level

LowHigh

Predicted Grade

B-

95% confidence
Based on 28 grades
Most common grades:
Not sure yet (9)
A (7)
D (4)
Grade Distribution
A(10)B(4)C(4)D(6)F(1)A-/B+(4)
Based on 44 reported grades
Not sure yet: 9
A: 7
D: 4
A+: 3
Common Tags
Tough grader (22)
Test heavy (13)
Graded by few things (9)
Lecture heavy (6)
Participation matters (4)
Lots of homework (4)
Beware of pop quizzes (3)
Gives good feedback (2)
Rating Trend

Declining

-0.80 avg change
Jan
Feb
Apr
Feb
Jun
Jul
Last 6 months
Ratings by Course

MATH3B3C

5.0

(1)

3C5A115C

5.0

(1)

MATH3BC

5.0

(1)

118A118B

5.0

(1)

118AB115C

5.0

(1)
+22 more courses
Difficulty by Course

122

5.0

MATH118B

5.0

MATH118AB

5.0

MATH4B

4.3

math117

4.1

Reviews (81)
3.0
4.0
MATH3B
Feb 6, 2003

No Comments

5.0
3.0
MATH3B3C
Feb 20, 2003

I LOVE STOPPLE HE IS SOOOOO AWESOME. BEST PROF AT THIS SCHOOL!

5.0
2.0
3C5A115C
Feb 24, 2003

No Comments

5.0
3.0
MATH3BC
Mar 16, 2003

how cute and nice

5.0
1.0
118A118B
Apr 4, 2003

Analysis just comes REALLY easy to me.

5.0
3.0
118AB115C
Apr 4, 2003

character + knowledge = stopple. highly recommended to anyone who values either.

4.0
3.0
MATH118AC
May 13, 2004

Very clear and organized teaching, tests are fair but challenging. Wisely, he doesn't EXPECT you to finish 4 analysis proofs in a 50 minute midterm, but by giving 4, you have a better chance of finishing 2 or 3

1.0
5.0
3C
Jun 5, 2004

Jeffrey Stopple is number one.

5.0
4.0
MATH122
Jun 29, 2004

One of the best math teachers I've had. His presentation of the material is crystal clear, as are the notes he offers as a mini-textbook for class, and he's in his office all the time. Also a nice guy. His tests can be a bit tough, though.

3.0
3.0
3C
Mar 14, 2005

No Comments

3.0
4.0
MATH3C
Mar 22, 2005

His lecture is not very organized. Go to CLAS, it is more helpful. The midterms are easy, but final is extremely hard. However, he curves the final, so it helps a lot. He is better than the other professors since you can at least understand him.

5.0
2.0
MATH3C
Apr 4, 2005

One of the Best Math teacher i ever had, very straight forward, everything one the exam were from HW, but final was kinda tough, but he curves. he made me wana take another class of his. highly recommended for Math Majors

3.0
3.0
MATH3C
Apr 6, 2005

sometimes you wonder if the guy had even thought about math before the lecture. Desparately wants you to see things conceptually and this goal was reflected on his out of control midterm wherein he had the nerve to say explicitly in the directions of a problem that we never learned how to solve it.

1.0
5.0
122
Aug 31, 2005

Hated his class... very arrogant and not organized. lectures for 20 min about random topics that he doesnt even test u on.

5.0
3.0
MAT104AB
Nov 6, 2005

Professor Stopple was always willing to help me when I came to him with questions about homework or concepts. I would not call him easy, but I learned a lot and felt he was completely fair. He was also quite personable.

5.0
3.0
MATH115A
Feb 12, 2007

Great professor. He's very personable, helpful, funny, and kind of cute (in that nerdy math professor sort of way). The easiest way to pass his class is to go to his office hours as often as possible. He will do everything he can to help you understand and is more than happy to sit with you for hours to do so.

5.0
4.0
MATH108A
Aug 24, 2010

Good Professor, homework was hard but he helped if you went to office hours. Lecture complemented the book, showing alternate proofs which help for understanding the concepts.

4.0
2.0
MATHB
Mar 5, 2011

Stopple is a very good teacher. He is super nice and really wants his students to learn. The tests are pretty easy if you know whats going on. His lectures are kind of boring and hard to follow, but if you go to office hours and CLAS you should be fine.

5.0
2.0
MATH3B
Mar 11, 2011

Professor Stopple is an excellent professor. His tests are very fair and he's always willing to help out during office hours. He is also very comfortable to talk to as well, not scary at all. I am speaking on behalf of not only myself but my friends who are also in my class as well. I HIGHLY recommend Stopple. Plus he's boss.

5.0
2.0
MATH3B
Mar 26, 2011

Although the class was easy, the grading was terrible. Does not award partial credit.

3.0
3.0
MATH3B
May 3, 2011

Pretty nice guy; he is very approachable and very helpful when you go to his office hours. The class was not overly difficult but his lectures are somewhat confusing. The homework was difficult but the tests are easy-ish if you know whats going on. Overall decent prof.

4.0
5.0
MATH3B
Oct 18, 2011

2 midterms (4 questions on each exam) and a final (8 questions) which makes a total of 16 questions. Stupid grading system where you have to get at least 8/16 problems correct perfectly, or else you won't pass the class. Won't give partial credit, avoid at all costs.

4.0
4.0
MATH3B
Oct 31, 2011

He really wants to get to know his students and help them, so you have to put yourself out there, he gives extra points if he knows your name. The topics are somewhat challenging, he doesn't explain them too clearly, and he moves quickly, so you have to stay on top of it, and make sure you have other help too. His tests can be annoying though.

4.0
1.0
MATH3B
Jan 10, 2012

Pretty easy, makes himself available. Aced all the exams without studying too hard.

5.0
2.0
MATH122A
Aug 9, 2012

Professor Stopple is very dedicated to his classes and extremely helpful when he knows you're interested. Always available in OH and curves his class knowing its a difficult course. Will NOT ever fail a student he knows has put in solid effort. Best math professor I've had at UCSB by far. Has true character, very friendly, out-going & approachable

2.0
5.0
MATH118B
Grade: D-
Feb 26, 2014

He may be a very smart may but he is an abysmal educator. For upper division classes, if you can afford to wait a year to take the class with another professor i would strongly suggest that you do so. His goal seems to make people fail out of his classes so that they have to switch from the B.S. major. Extremely stingy grader, doubt he has a rubric

2.0
5.0
MATH118AB
Grade: Rather_Not_Say
Mar 24, 2014

His goal doesn't seem to be to help students succeed but rather to make them hate math so much that they switch out of the BS major. Not encouraging, not approachable for help in office hours, and his tests aren't an accurate assessment as they introduce new concepts in the problems instead of asking about things we were taught. Avoid at all costs.

1.0
5.0
MATH118B
Mar 24, 2014

Doesn't feel as if he tries to "teach" you the material. The class times were horrible (who schedules this course at 8am for 3 consecutive quarters?!), and the tests were worse. There is no real way to prepare for the exams, since they're not based off of homework or lectures.

4.0
3.0
MATH118ABC
Jun 4, 2014

Professor Stopple is just a nice professor. His lecture is organized. Sometimes he skipped 'easy' parts because he assumed that you knew those before you could enroll in these classes. His exams are hard not based on neither homework nor lecture. All you need is to study all the materials. He gave me good grades, love him!!

4.0
2.0
MATH3A
Dec 23, 2014

The class consisted of two midterms which each had 5 questions and one final which had 10 questions. The grade pretty much is determined by how well you mastered the second midterm because that's what a majority of the final is. His lectures were hit and miss, but that's why there is CLAS and section.

3.0
4.0
MATH3A
Grade: C
Dec 30, 2014

The way he grades tests is kind of weird. If you don't get a certain amount of questions full credit, well you fail. He's super nice tough.

5.0
3.0
MATH3B
Grade: A
Mar 11, 2015

The test is easy. And we can sometimes got a extra credit to replace the questions you got the lowest scores on the test. Prof Stopple is really helpful. He organize the class very well.

4.0
3.0
MATH3A
Mar 25, 2015

He was very helpful in office hours. I still keep in contact with him now ever so slightly.

4.0
4.0
MATH3A3B4A
Apr 19, 2015

Professor Stopple really cares about his students. He won't leave you hanging as long as you utilize office hours and your discussion section. He has a very specific grading system where you have to get at LEAST half of the TOTAL cumulative exam questions fully correct to pass the class, so you'll have to really study hard. Great professor overall!

5.0
2.0
3BAND4A
Grade: A
May 14, 2015

One of the best teachers I've had at UCSB! He's a great teacher and is extremely helpful and caring if you go into his office hours andor ask questions. Definitely take with Stopple. The passfail system for tests is a little weird, but he is super clear and helpful about his tests.

5.0
2.0
MATH4A
Jun 9, 2015

Only had him for math 4A, was recommended by a friend of mine. Really like him a lot! And VERY helpful during office hours, if you don't get the stuff in lecture, go to his office hours! And DEFINITELY DEFINITELY do recommended book problems, they will show up on your midterms and final (this is announced in class and on the syllabus)

4.0
2.0
MATH4A
Jun 13, 2015

Great professor ever have in Math. Midterm fair and easy. if do all the homework and recommend problem, will be easy to get an A.

4.0
2.0
MATH4A
Grade: A
Jul 8, 2015

I love Professor Stopple, he is the best math professor I've had at UCSB. Really helpful if you go to office hours, no surprises--if you do the work and the recommended review problems you'll do well

5.0
1.0
3B4A4B
Grade: A+
Oct 29, 2015

The BEST math professor at UCSB. All you have to do is finish the recommended questions. I got 3 A+ for my 3B 4A and 4B. Definitely recommend him!!!

5.0
3.0
MATH3A
Grade: A-
Apr 11, 2016

Super nice guy and very helpful. Requires students to go to office hours twice and if he knows your name, your grade depends on it. Topics presented well. Know how to do the problems he gives you before exams, the exact questions will be on the exam!! Really nice. Dry speech.

5.0
3.0
MATH119
Grade: A-
Jun 11, 2017
Would take again

Amazing professor, go to his claseeses go to his office hours. You only have yourself to blame if you don't do well. He makes you try. Gives your confidence. He believes in all of his students. A great professor. I've taken three classes from him

5.0
3.0
MATH4A
Grade: A
Jul 8, 2017
Would take again

Jeffrey Stopple is a tremendous teacher! There is a lot of homework/busy-work, but he ultimately wants to show you the bigger picture of mathematics -- to understand it conceptually as opposed to just being good at number crunching. Make sure to do all the homework on web-assign, and save your notes from those homeworks.

3.0
3.0
MATH108A
Apr 13, 2022

TBH, the structure of this course is terrible. His handwriting is also terrible. The lectures are kinda messy and it's even better to just read the textbook thoroughly. There's only one exercise hw after each lecture, which is not enough for practicing. Lectures are useless to some degrees. And he didn't even allow restroom during exam.

1.0
5.0
MATH108A
Grade: Not sure yet
Apr 28, 2022

Lectures are not helpful at all. He just writes based on the textbook. Hard exams. Difficult to communicate with. Tough person.

Tough grader
Lecture heavy
2.0
4.0
MATH108A
Grade: A
May 18, 2022

Prof Stopple will give midterms that may replicate the homework, but his lectures are VERY FAST (like kachOw) and the min you try to process the info, he already has a board full of proofs to write down. He frequently reassures the class that the material is easy but this only makes struggling students feel worse. HW (35%), 3 midterms 1 final (15%)

Tough grader
4.0
3.0
MATH108A
Grade: Not sure yet
Jun 4, 2022
Would take again

Professor Stopple is a great teacher and is super accessible outside of class. Lectures are SUPER quick though and you're scrambling to write down a super elaborate proof. He wants his students to succeed and genuinely cares, but therefore he is a tough grader and wants you to follow very specific proof structures.

Get ready to read
Gives good feedback
1.0
5.0
MATH108A
Grade: Rather not say
Jun 16, 2022

His lecture notes are confusing and messy. There is too little homework for review purpose. He is also a harsh grader. His grading policy is absurd.

Tough grader
EXTRA CREDIT
2.0
3.0
math117
Grade: Drop/Withdrawal
Oct 16, 2022

I dropped the course not because I did bad, (I intentionally didn't review the exam since I planned to drop it, but I got a 10/12 on first midterm, median was 5/12) but the course is unenjoyable. His writing is unclear and every letter is upper case. He doesn't post lecture notes. The class is not hard but strict and unenjoyable, not recommand

5.0
3.0
MATH108A
Grade: A+
Nov 16, 2022
Would take again

Professor Stopple's class is challenging, but if you really try, you will find it really helpful for later courses. He also curves a lot. He also gives very little homework.

3.0
3.0
math117
Nov 22, 2022
Would take again

There are 37 pages of typed notes on Canvas from day 1. The syllabus refers to them, and I referenced them in just about every lecture. And no one who got 10/12 on the first midterm dropped the class.

3.0
4.0
math117
Grade: B+
Dec 15, 2022

He is smart and qualified. Tough grader. He would deduct points for writing too much, even if the correct answer is there. He doesn't give solutions to all exercises from the notes. There is much content in the notes and his exams did not cover all of the material. Overall, the pace of the class is manageable and homework load is relatively light.

Tough grader
Beware of pop quizzes
1.0
5.0
math117
Grade: Not sure yet
Apr 26, 2023

Don't take his math 117. It's awful. Doesn't give deatils in his notes. Exams extremely hard. Median score of midtern 1 was 6.5 out of 16. Ruined my GPA. The worst decision I have made is to take his 117.

Tough grader
Participation matters
Beware of pop quizzes
4.0
5.0
math117
Grade: Not sure yet
Jun 17, 2023

Stopped is good when it comes to lecturing, but grades unforgivably and will take off points even if your proof is correct. Do NOT fall behind on your work, and you'll be good since his midterms/final are just homework/textbook questions.

Tough grader
Participation matters
Lecture heavy
5.0
4.0
math117
Grade: A
Jun 18, 2023
Would take again

He is truly a genius. I greatly admire his extensive knowledge and outstanding problem-solving abilities. His teaching is filled with passion, and he always uses vivid examples and clear explanations to help us understand abstract mathematical concepts. Grading is based on a curve, improvement and your overall understanding of the concept.

Tough grader
Participation matters
Gives good feedback
5.0
3.0
math117
Grade: A+
Jun 20, 2023
Would take again

Prof Stopple gave a fat curve. He has his own textbook with all the theorems, propositions, and exercises. This quarter, he covered 13 theorems, 27 propositions, and 80 exercises. In order to ace the class, you should try to do the exercises not assigned for hw on your own. You can go to TA and professor's OH for help. Would take his class again.

Participation matters
Inspirational
Beware of pop quizzes
1.0
5.0
MATHB
Grade: Incomplete
Nov 16, 2023

Took this class for 4B and the lectures are all over the place, super unorganized. Had to get an online textbook in order to do the homework which cost 80$, the book wasn't helpful and the homework was completely different from what he was teaching in class. Literally walked out of the first lecture without understanding anything...

Tough grader
Lots of homework
1.0
5.0
3B4A4B
Grade: B
Dec 1, 2023

I took Math 4B with this professor. You have to pay $80 bucks for WileyPlus for his assignments, and you only had 1 try for each question. Yes, all the questions are graded and they reflect on your final grade. He discourages you from asking questions. I really tried in this class but he was very unhelpful even when I ask questions and TA sucks.

Tough grader
Graded by few things
4.0
4.0
MATH4B
Grade: Incomplete
Dec 7, 2023
Would take again

His lectures can be confusing at times but all the notes are posted online and he gives us plenty of practice problems so it's not that bad. While the homework policy was harsh initially, he gave us 2 more attempts after the first chapter, waives 30 points instead of 10 now, and will not count homework in the final grade if it harms you.

Lecture heavy
Graded by few things
1.0
4.0
MATH4B
Grade: Not sure yet
Dec 7, 2023

Do not take diff eq's with this guy. The guy is lazy. He consistently ends lectures 30 minutes early, doesn't show work or much mathematical reasoning, and he won't give a good response to any kind of question you might have. On top of all of this, the textbook for this class is horrendously difficult to comprehend. The tests are very difficult too

5.0
2.0
MATH4B
Dec 7, 2023
Would take again

Great professor. Material is well structured and fair paced- Really easy course and exams as long as you understand linearity

2.0
4.0
MATH4B
Grade: B-
Dec 9, 2023

Barely gives study guides. So vague

Tough grader
Test heavy
Graded by few things
1.0
5.0
MATH4B
Grade: Not sure yet
Dec 9, 2023

Do not take Math 4B with Stopple. Lectures are all over the place and super disorganized. Exam problems are completely different from homework. Study guides are vague and do not have answer keys. No practice exams provided.

Tough grader
Lecture heavy
1.0
5.0
MATH4B
Grade: Not sure yet
Dec 12, 2023

Made us pay $77 to do homework only for it to be worth 10% of the grade. Other 90% is exams which were unlike homework or lectures. They were based on vague review study guides that he refused to give the solutions to. Lectures were always confusing and more complicated than it needed to be. He was also uninterested in answering any questions.

Tough grader
Test heavy
Graded by few things
1.0
4.0
MATH4B
Grade: Not sure yet
Dec 14, 2023

Don't take 4B with him. This old guy always assumes you already have a degree in math, and his lectures were the most disorganized. It's really a suffering course that you will never know what to do. No practice exams. Review materials are helpful sometimes, but he doesn't give solutions so you'll have to figure them out on your own.

Lots of homework
Test heavy
Graded by few things
1.0
5.0
MATH4B
Grade: Not sure yet
Dec 15, 2023

Don't take his class! Don't take his class!

Tough grader
Lecture heavy
Test heavy
1.0
4.0
MATH4B
Dec 18, 2023

This old geezer is so unpredictable you would never know what he would pull off next. He also expects students to know everything already and makes the exams EXTREMELY HARD. If you ever need to take 4B, please avoid this professor at all costs.

Tough grader
Test heavy
Graded by few things
1.0
5.0
MATH4B
Dec 18, 2023

bro thinks we all tryna get a phD in math and physics like huh. lectures aren't helpful either bc it doesn't even compare to the exams. don't take his class even if its required, wait until the next quarter with a different professor. the homework is hard too, and we had to pay like $80 for it. cmon, we're all worth more than that.

1.0
4.0
MATH4B
Grade: D
Dec 18, 2023

Terrible. Don't take him for 4B, he expects too much for a lower-division class and goes beyond what is supposed to be taught. Glosses over each topic as if we all have math degrees already and he didn't want to be there as much as we did. We have to pay for homework, and I basically learned everything online. More questions by going to lecture.

3.0
4.0
MATH4B
Grade: Rather not say
Dec 18, 2023
Would take again

Not always the easiest lecturer to follow because he doesn't really use or provide reviewable material and the textbook from WileyPlus is also a hard read. Speaking of WileyPlus has he just not heard of webwork. Someone tell him about webwork. Pls just use webwork

Tough grader
Test heavy
Graded by few things
1.0
5.0
MATH4B
Grade: C-
Dec 19, 2023

Worst prof I've ever seen

Tough grader
Test heavy
1.0
5.0
MATH4B
Grade: F
Dec 20, 2023

I literally wasted a whole quarter taking this class just to end up with an F... literally so hard this professor does not know how to teach... AVOID HIM AT ALL COSTS

Tough grader
Test heavy
1.0
5.0
MATH4B
Grade: D
Dec 24, 2023

Stopple weighted the final way too high and doesn't curve. He also WileyPlus instead of WebWork for homework which you have to pay for and have limited tries on, making it harder to learn the content. He got too conceptual instead of teaching the math.

1.0
5.0
MATH4B
Grade: C
Jan 9, 2024

Lectures are very disorganized and often does not show reasoning behind work. Tests are very hard and do not relate to homework or any practice provided. You have to pay $80 just to do homework with limited attempts, you end up trying to gather points rather than learn the content. Makes subject far more confusing than it is compared to YT vids.

Tough grader
Lots of homework
1.0
4.0
MATH4B
Grade: A-
Jan 21, 2024

useless lectures, midterms and finals are not related to hw students are forced to sign an agreement in the final stating we will get an ZERO if we do the first question wrong

Tough grader
Lots of homework
Test heavy
1.0
5.0
MATH4B
Grade: D
Feb 5, 2024

Worst professor I've had. Lectures are incoherent, homework is $80 and doesn't prepare us for any of the exams. 90% of the course are exams, and only 10% is homework. He doesn't work with the TAs to tell them what we do, he doesn't offer practice exams, and the review he hands out isn't even on the exams. Complete waste of our time.

Test heavy
Graded by few things
3.0
3.0
MATH4B
Grade: B
Feb 21, 2024
Would take again

He is an alright lecturer, but as for most lower division math, you should be fine with learning from Paul's notes. Sadly he seems to not enjoy the content of the course and often made comments about how the course was useless to us. I got a 96 and 100 on midterms, and got complacent, got a F on final and somehow ended with B. So pretty easy tbh.

1.0
5.0
MATH4B
Grade: C-
Feb 22, 2024

His lecture is difficult to understand, and the exam accounts for 90% of the total grade. However, he hardly provides any useful resources or practice exams. He should recognize that 4b is a lower-level math course, not all students taking this course are majoring in math or statistics. Just don't take his class

Tough grader
Test heavy
Graded by few things
5.0
3.0
MATH4B
Grade: B
Apr 13, 2024
Would take again

most people put ZERO effort in the class but expected a good grade. unlike most 4b profs, stopple taught us meaningful concepts instead of forcing us to memorize how to do useless, tedious computations that a computer could do in two seconds. lecture notes were a little messy but useful if you actually try to follow along. grading was reasonable.

2.0
5.0
MATH4B
Grade: Rather not say
Feb 11, 2025

Exams account for 90% of the grade, homework for 10%, and homework access requires an $80 payment. There are no slides, notes, or supportive resources—Canvas only lists exam dates. No practice midterm or final is provided, and emails are often ignored. The professor overestimates students' prior knowledge, assigns unrealistic homework, etc.

2.0
5.0
math117
Grade: D
Jun 18, 2025

Stopple made me hate math for this quarter. His body blocks the chalkboard half the time so you have no time to write anything down. Your grade is entirely 5 exams. No notecard of any kind. You are in essence expected to memorize 75 proofs by the final. The median on the midterm was 17% and by the final it was about 40%. Do not take 117 with him.

Tough grader
Test heavy
1.0
5.0
math117
Grade: A
Jul 3, 2025

Not complaining bc of bad grades (I got A). He never takes regrade requests respectfully. When you want to discuss a problem with him, he just replies with "no" and refuses to explain why he took off points. Material taught in an ill fashioned way, he defends it by claiming the course was set up a long time ago. Being old does not mean it's good.

Tough grader
Lecture heavy
Test heavy
Class Info

Online Classes

100%

Attendance Mandatory

26%

Textbook Required

86%

Grade Predictor

Your expected effort level

LowHigh

Predicted Grade

B-

95% confidence
Based on 28 grades
Most common grades:
Not sure yet (9)
A (7)
D (4)
Grade Distribution
A(10)B(4)C(4)D(6)F(1)A-/B+(4)
Based on 44 reported grades
Not sure yet: 9
A: 7
D: 4
A+: 3
Common Tags
Tough grader (22)
Test heavy (13)
Graded by few things (9)
Lecture heavy (6)
Participation matters (4)
Lots of homework (4)
Beware of pop quizzes (3)
Gives good feedback (2)
Rating Trend

Declining

-0.80 avg change
Jan
Feb
Apr
Feb
Jun
Jul
Last 6 months
Ratings by Course

MATH3B3C

5.0

(1)

3C5A115C

5.0

(1)

MATH3BC

5.0

(1)

118A118B

5.0

(1)

118AB115C

5.0

(1)
+22 more courses
Difficulty by Course

122

5.0

MATH118B

5.0

MATH118AB

5.0

MATH4B

4.3

math117

4.1

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