Very good teacher, but very hard. If you can hold out in his class, you will learn a lot!

I have never learned more in a math course than I have in Jeff's calc III class. He expects alot, but his style forces you to learn it or fail, it's that simple (and shouldn't that be the standard anyway).

I feel that Jeff is one of the better math instructors here. I would recommend anyone who is not all that great with math to take him.. His notes are pretty easy to follow, but his exams are challenging.

Very good teacher. His notes are great. And he makes sure you learn everything. That's it

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One of, if not the best math teacher that I have ever had. The coursepack that others have complained about is the best thing to ever happen to math. Its so much easier to understand than a textbook and a lot cheaper,too.

I loved the coursepacks, they were self explanatory so you always know what he thinks is important and sometimes make you laugh. Sure, writing papers sucked but at the end of the semester, those papers were great for studying. He really teaches the material thoroughly and takes time to makes sure every thing is clear.

He is probably the best math teacher I've had. Overall, his classes are pretty hard but I can honestly say that i learned alot from his classes. If you need to take more math classes in your future then I would reccomend him, but if you do not need any more math classes after the class you are taking, don't take his class not worth the time/effort.

his class is hard, but he is a good teacher. always happy to be there. homework after every class, but it is math and thats the only way to get it. if your going on in math, i recomend jeff cuz he will teach you better than anyone else around him.

This was a summer calc 3 class. He used his own course pack which was very good. You must go to class and you must do your homework. Tests were hard, but not unreasonable. Excellent prof. I would take a class again from him.

While I did learn a lot about pre-calc, and then Calc when I took him a second semester, he is EXTREMELY hard. I spent about 2 hours a night on homework. I recommend him if you plan on taking a lot of math, but if you're just getting it out of your way dont bother with him. His class isnt worth the time and effort if you don't have a future in math

I hate math, but he was so helpful and understanding. Hard calss, but good at explaining things.

I enjoyed Jeff's class immensely. As many have stated, his classes entail a lot of homework, which, if you do not complete on a regular basis, will pile up. Although Jeff covered some difficult topics, I liked his high standards for us, his interest in his students, and his willingness to help. I am excited to take MAT 226 with him this semester.

If you're taking a class higher than 125 and aren't an idiot, then Jeff is the teacher for you!

Really strict attendance policy. Lots of homework. Expects you to pretty much have aced all previous math classes taken and expects you to remember how to do it all. Pretty interesting lectures tho. Hard tests.

Jeff simply loves teaching and loves math. His classes entail a lot of homework and don't expect to breeze through his tests without A. Attending Class, B. Doing the homework, and C. Studying outside of class. He is a hilarious guy and readily available for his students. Great teacher if you are willing to work.

His lectures are canned, he might as well just not be there. Hardly any time built in for questions and his fill-in-the-blank note pages were ridiculous. Probably a great professor to take if you are a math major. Otherwise, find someone else.

Jeff is a pretty funny guy and a great teacher, but if you math isn't your gig then his exams are pretty damn hard. If you work hard enough you will do well, but it isn't an easy A by any stretch.

IF you wanna leave a class knowing the knowledge pick Jeff, however be prepared to work your butt off to get a good grade.

This is one of the hardest classes I have ever taken. It can be overwhelming, but it is good preparation for future studies.

Jeff clearly loves teaching, and most of call loves math. He is very available to his students and is overall a very genuine, funny guy who clearly works very hard. His classes are pretty demanding, but you'll walk away with a lot more knowledge than you would have otherwise. Recommended for those who don't wish to just "float by" in a math class.

Had him for Calc III. Hardest class I've ever taken, but I worked my butt off and got an A.

One of the hardest working professors out there. You will have to work your ASS off, but it is all worth it. I still remember everything.

Jeff isn't the easiest teacher. If you don't want to learn, or are interested in an easy A look elsewhere. However, if you actually want to learn the material and will have to use it, Jeff will make sure that you know it well. He is always willing to help. He's one of the best professors I've had.

Jeff is one of the best professors that I have had. He challenges you and has high expectations; however, he matches these expectations with his teaching.

There is no required textbook(he uses a set of lecture notes he wrote). He tells you EXACTLY what he expects you to know for exams and if you spend a reasonable amount of time on the material you will get an A. Also Jeff is a badass

One of the best math professors I have had at NAU. Yes he is tough, however if you attend class daily and pay attention, you will have no problem understanding the material.

He definitely made the class a challenge. Sometimes the grading frustrated me, because I'd get an A on one major test but then a bad grade on the next test would bring down my class grade a ton. I still overall learned a lot and enjoyed his lectures, but attendance and asking questions is SUPER important!

For this class, you pretty much just had to do the one page of miscellaneous questions he gave you and show up for the once a week class.

A really cool dude, I look forward to taking more classes with him in the future.

If you have the chance to take 320 with Jeff, take it. The class is structured using the "Moore Method", so he doesn't teach, you just work through the problems independently/with him/as a class. It's really shocking and uncomfortable at first but if you're really passionate about mathematics and stick it out, it definitely pays off.

It was one of the most out-there math classes I have ever taken, but Jeff made the material somewhat understandable and fun. Office hours are a plus. Be prepared to work really hard. Do not, DO NOT put off doing the extra homework if you're working towards getting the extra credit. Outlines expectations for the class clearly, so don't slack off.

The class is structured in such a way that the more abstract concepts relating to linear algebra were introduced before the actual computational part. This really helped with understanding the subject as a whole. Get ready to work hard, Jeff is good to you if you're a hard worker. He really helps you work through understanding the concepts.

Jeff was one of the first professors who's tests I needed to study for, so his classes definitely require effort. However, he'll answer any questions you throw at him, and if he doesn't have an answer he'll get back to you with one. Also, Jeff is hilarious, I pretty much laughed my way through every class. Attendance is 100% mandatory.

Jeff has a unique teaching strategy that made his class very difficult. He doesn't like to simply give you the answer, and makes you work hard for it. I respect him for that, and even though he makes the class difficult, he's forcing you to understand the content instead of simply memorizing things. He's not as bad as the other comments claim.

Jeff is one of the best math teachers I have had. His class follows the same structure every day and he makes the material easy to comprehend. All questions on the test come directly from homework and lectures notes. There is also an opportunity to earn a 10% grade raise at the end of the semester if you attend class, take notes, and do homework.

How to succeed in Jeff's classes: show up (everyday!), go to his office hours, and DO THE EXTRA CREDIT. He expects a lot, but you don't have to be a math whiz to do well (I got C's/B's on every test and still got an A in the class). Also he's just a funny guy. Show him respect and he'll do the same for you.

Jeff is by far one of my favorite math teachers I've ever had. Be prepared to work for your grade. Pay attention to the lectures and jeff is always there for you whether it be email or office hours. You have to put effort into this class and spend time after going over lectures to truly understand the concepts. But if you do, you will be rewarded.

Jeff was very helpful in ensuring his students succeeded in blended learning. There are daily attendance quizzes and a couple exams. Homework is optional- only 2-3 problems for submission twice a week, but the test questions are very similar to homework questions. Loved MAT137, taking MAT238 with Jeff because of his great teaching.

My favorite math teacher I've had! The class is hard but if you put the time in and use Jeff as a resource it's more then manageable. I actually plan on taking more calculus because I feel I have a solid foundation thanks to Jeff!

If you put in the work, linear algebra with Jeff is not only manageable but very fun. I got into STEM because I like solving puzzles and conquering difficult material. This is exactly the content that Jeff provides. Amazing lecturer, even during a pandemic. Its a shame that I found him in my one of my last mathematics courses.

I enjoyed this class overall. The final and his multiple-choice exams were very trivial at times and Jeff was not very personable, but if you work for it is possible to pass. You have to make sure everything you turn in is exactly how he tells you to do it, though, which makes it a little bit more work than necessary.

MAT 331 was an easy class. The lecture notes were very straightforward and easy to follow along. 70% of the grade is based only on two tests, so it might be a little intimidating, but the tests were not that hard. If you are looking for an easy one-credit class, take this class!

If you show up to class you will do fine. He has a lot of office hours and answers any and all questions you have. However, if you miss one class you WILL fall behind. He grades harshly but is still one of my favorite professors I have had so far.

Jeff is one of the best professors. He has a great chance for a lot of extra credit but you have to work really hard for it. He gives you fill in the blank notes which are so nice. The tests can be tough but do the homework and youll be fine. He also has a lot of office hours and is always willing to help. He also has very funny stories!

All it takes to succeed in Jeff's class is hard work. You have to study very hard for tests and do everything for the huge extra credit opportunity. The notes are fill in the blank and as long as you do these + every hw you should have no problem doing well. Jeff is my favorite math professor and he might not be easy but you WILL learn the content.

Jeff is my favorite professor i have ever had; his lectures are amazing and his exams are very straightforward. He offers so much help for all of his students for exams and homework. Despite my lack of enthusiasm in math going into this class, he has inspired me to pursue a math minor in addition to my current degree. take This professor if you can

Just follow his list of rules and you'll be fine. The course is very homework heavy but it's not as bad as the previous math courses I've taken before. Make sure to do all the homework! There is an achievable 10% extra credit on the final grade if you get it done & attend classes. It's so worth it and will help you grasp what is taught.

I don't recommend taking this class if you're already getting burned out, as this will make it far worse. There's extra credit, but its pretty rigorous, as it also requires your attendance, and never missing a hw assignment. The exams aren't easy either. He's funny and nice, but don't take this class if you have any mental health issues.