Dude makes no sense when he is teaching. Noone in the class can understand any concepts unless they have been taught them by someone else before. Very hard to follow, has a lot of trouble explaining concepts and theories on levels for students to learn.

I had a very bad experience in David Adalsteinsson's course. The lectures are very unclear. All learning must be done independently from the book. Avoid taking a course with him if possible.

David really struggles to explain high-level math concepts. In 383 I was very lost most of the time. Lectures were fragmented and unclear. Would not reccomend

it makes no sense that he is still teaching. do not take this guy because he is really disorganized in lecture, and don't teach you anything. Materials are not necessarily difficult, but he makes it difficult.

If you think you need a class but you have to take it with him, trust me. You don't need it that bad. His lectures are abstract and disorganized with worksheets that we rarely get through, so most of what I know is from the textbook. Also, for the first exam, 1/4 of it was on a chapter we hadn't covered and were told not to study. Seriously. Don't.

Don't take him for linear if you can help it. There are easier teachers out there who will ensure a better grade. His lectures are heavy and often make little sense and his tests often have theoretical material that is vaguely reviewed, if even reviewed in class.

Lectures were severely mismanaged, highly disorganized, and unproductive yet attendance was mandatory. David only speaks to the chalkboard. In-class worksheets lack solutions which require months to be published. To call David a professor is a huge insult to all professors even the bad ones. If you can, do not take this course with David.

I have never been so confused within a course until I took Math 528 with David. The "Lectures" were disorganized, often seeming like there was no clear objective to work towards. Almost every class we would run out of time prior to accomplishing a single example from the worksheets he hands out daily. If you can, do not take math528 with David.

In David's class, we were tested on more material and sooner than other sections of 547. Disorganized, glosses over foundational concepts. Never finishes in-class worksheets. One homework was graduate-level material assigned four weeks after first exposure to matrices. Tests are impossibly tedious. A truly nice guy, but an abysmal educator. Avoid.

I could not name a worse lecturer. I've taken math383 at unc and listening to him explain first order systems of ODE's confused me so bad that I had to go back to that course material. He's very nice and says some interesting theoretical stuff in class but I cannot emphasize enough how bad he is at explaining things.

David was absolutely the worst professor I have ever experienced in my entire life. Its impossible to know how youre doing in the course, and the final grade seems to be a lottery for how hes doing when he makes the curve. Please dont make the same mistake I did. Do not take Linear Algebra with David Adalsteinsson.

He's a decent guy but not a good lecturer at all. His notes are hard to follow along with and lecture is very fast. Be prepared to have to teach yourself a lot of what he goes over in class through online videos and the textbook. The good news is the content is not hard on its own. He's just bad at teaching.

David's lectures are all over the place and he is not responsive to emails/messages outside of class. Even when asking for solutions to practice he's given us, he doesn't provide any because he says he doesn't have them written up. This semester was incredibly difficult due to his unreliability and confusing lectures -- I had to teach myself.

Nice guy, horrible teacher. I have never felt more confused in my life than after leaving one of his lectures. Gives no context to the content you are learning, goes at a rapid pace, does not explain content, and just does problems on the board in a confusing way. Terrible slides that dont help at all Again, super smart dude, abysmal professor.

Here I am thinking I won't have a worse professor than the past ones I've had here. Then comes this dude. My GOD is he confusing and hard to follow. It's useless to come to lectures because he never explains anything and instead recommends WATCHING OTHER PROFESSOR'S LECTURES. The entire semester I had to self-teach EVERYTHING. DO NOT TAKE HIM EVER

this guy blows, don't take him

Prof Adalsteinsson is probably the worst professor I've ever had at UNC. He is super nice and obviously super smart, but his lectures are terrible. Lectures are confusing, scattered and read off his own poorly handwritten notes. He doesn't provide solutions for classwork and actually RECOMMENDS you watch other professors' lectures online.

Lectures are very, very hard to understand. The material isn't too bad so you can definitely teach yourself if you need to, but I would avoid this professor if you can. Super nice guy, though.

genuinely the worst professor ive ever had at unc. he always talks about things for 30 mins of our 50 min class that are completely irrelevant to the worksheets or homeworks or exams that we are given and then im left trying to figure it out for myself before turning in the 3 assignments we have due every friday. run. do not take.

He is a nice guy and clearly very smart and knowledgeable. However, I often left lectures more confused on the material than when I started. Grading scheme/curve was never revealed, nor were our grades on the final exam. Despite being the applications class, there were very few applications mentioned, and there were proofs on multiple of our exams.

If you walked in on one of his lectures and looked around, half the people would be on their phones/laptops watching something, and the other half would be staring blankly in confusion. He ALWAYS went over on time and his lectures were extremely hard to follow. Use TA's and ULA office hours, and avoid his. He will take up hours of your time

Don't read any other review. This one is the only one you need. DO NOT TAKE THIS PROFESSOR. Students in class audibly laugh when this guy tries to explain the material. He's a nice guy, but he's the worst instructor of any sort I have ever seen. You will leave class more and more confused than from where you start. Avoid him please.

Awful professor, extremely bad lectures and very strict and unfair grading. Requires you to do things “his way” and goes down a rabbit hole every time he teaches something

He is very disorganized in class structure. He tries to teach students not only application but also the reason behind, but is not doing it very well. He rushes through complicated proofs and thinks these scattering shots are enough. If any professor wants to give a hint on analysis in an application class that is not how they should do it.

Dr. A does not give any care to his students and expects us to treat Linear Algebra like its our passion. Extremely disorganized lectures, notes, and resources. He rarely gave solutions to work and even if he did they could be wrong. Don't take this class.

He has extremely disorganized lectures and his explanations are REALLY bad. Homework is never posted when it is supposed to be, and tests make up 80% of the final grade. He is a nice man and you can see he enjoys teaching, but he is not a great instructor, at all.

Do not take this guy. He has no idea how to teach and does not care about the students. Tests are 80% of the grade and are inconsistently graded. Does not even tell you what will be on the final.

Anyone giving him more than a 1 is generous. Save yourself and DONT. His lectures are incomprehensible, and you'll have to teach yourself everything—no exaggeration. I thought his lectures couldn't be as bad as reviews said—trust me, they are. Exams are okay, but he as a professor is truly abominable and the worst ever. The homework is ridiculous.

This class is atrocious to say the least. I have learned ZILCH from the lectures—and trust me, I've been to all of them. If you want a chance at passing the exams, I would read the textbook and review the worksheets. The homework problems sometimes include topics we haven't even covered in class yet, but he keeps them on their for some reason.

Despite attending the lectures, I found it very difficult to do the worksheet given to us to have completed by the end of lecture. I found myself learning most of the content outside of class and my emails to the professor sent with no reply. It was difficult to get a straight answer out of the professor as he would ramble about unrelated topics.

Do not. While admittedly this has been a tough semester for me due to some other outside circumstances, this guy did NOT help at all. Lectures are plainly incomprehensible -- not even because of the accent, he just says things and expects you to understand. Doesn't go through problem solving in class. Assigns an ungodly amount of homework.

The lectures were useless. He doesn't respond to emails. Fortunately, the class is pretty easy. You're best off going to class, grabbing the in-class assignment, then leaving class and studying for a few minutes a day rather than wasting your time. It's a shame he's a bad professor, because I actually kind of like him on a personal level.

Never again. NEVER explained what was covered on the final exam, the lectures were awful- so basically, teach yourself. I am a math major and David made several errors during most of his lectures- showing incompetence. Take someone who has respect for his students too, he denied my accommodations for an exam.

I stopped attending lectures after the first month because they were honestly confusing and unhelpful—it felt like the professor didn't fully understand the material himself. The midterms were manageable, but the final literally destroyed me. Thanks to him, I am going to say goodbye to my 4.0 GPA.

David's lecutres were all over the place and made learning the material very difficult. Office hours were as confusing and he was a little scary! His office was also a mess, so I can see why he never responded to his emails! His syllabus had no clear grading criteria and there was no baseline for final grades either! Do not trust him. Bless Bless!

he doesn't explain concepts well and lectures are a mess. he's a strict grader and doesn't curve in the slightest. please do not take him.

Absolutely terrible. Lectures were illogical, unprepared, and he didn't even know what he was talking about himself. One of the worst of all the math classes I've ever taken. Frequent mistakes. Eventually a final grade is given without announcing the grade or grading scale. I don't even know how my grade was composed.

Absolutely terrible. Lectures were illogical, unprepared, and he didn't even know what he was talking about himself. One of the worst of all the math classes I've ever taken. Frequent mistakes. Eventually a final grade is given straight away without announcing the grade or grading scale. I don't even know how my grade was composed.

Absolutely terrible. Lectures were illogical, unprepared, and he didn't even know what he was talking about. One of the worst of all the math classes I've ever taken (others not even close). Frequent mistakes. Eventually a final grade is given straight away without announcing the grade or grading scale. I don't even know how my grade was composed.

David is very smart but doesn't know how to communicate abstract thoughts, which is unfortunate since linear algebra is a pretty abstract class. I spent most lectures figuring stuff out by watching youtube videos or using GPT. He also went outside the scope of the required content while making it an important part of the final.

Linear is a hard class no matter what, but his lectures are horrible and impossible to follow. You have to teach everything to yourself. You have a worksheet you have to turn it every class and it's very difficult to understand how to do it by the end of. Homeworks take a long time to complete and require hours of learning.

Very nice and intelligent professor but completely incomprehensible lectures, which would be fine if attendance was not mandatory but it was.

This class is a nightmare... he is hilariously bad at lecturing. Material is overwhelming, undigestible, and you had better be prepared to teach yourself everything. UNC Math department needs an overhaul, I have not taken a single good class with them yet.

don't waste time going to class, get someone else to do the in class assignments for you. one of the worst teachers at the school and literally impossible to learn from. the first and third midterms are easy if you have old ones. don't take this teacher if you can avoid it but it's not the end of world if you do

Genuinely awful professor. His lectures are outdated, incorrect, and incomprehensible. He is unhelpful, boring, and just when you think you understand the material, he confuses you at the last second. Homework is tedious/unhelpful. Class averages for exams hover around 60, and he curves nothing. Take another teacher and save yourself the stress.

Just an awful class...David doesn't explain anything in an understandable manner, so you WILL be teaching yourself everything. Sitting in class for 2.5 hours every week just being talked at gets exhausting quick, and he makes zero effort to either help you understand or make class even remotely entertaining. Take with someone else, bc I hated this.

Would not recommend taking this class...David is a great guy but his lectures are confusing and his teaching style is frustrating. Tests are 80% of your grade in this class and for some odd reason he loves to throw in questions that look nothing like the work you do in class/homework. Take someone else and save yourself the stress.

Took this class for Econ BS thinking it couldn't be that bad, and it has been even worse. This is by far the worst taught class I've ever been in...the class is unorganized, lecture notes are incomprehensible, and homework is long, tedious, and constant. I would strongly recommend against this class, and if you HAVE to take, take with someone else.

Studying for exams right now and ready to just...be done with this class. A really, really painful class to take. Couple that with subpar instruction from David and it's a recipe for disaster. Please take with someone else if you value your sanity and are not a math prodigy. Thankful for the TAs/ULAs who helped me not get 0's on every test.

Not a good prof, and an even worse class. Don't take with him if you can help it

So, so bad. So bad. Prof doesn't respond to emails, uses outdated/ambiguous slides to teach, and generally is very confusing. Take with someone else, this class isn't easy and he makes it way harder than need be.

Awful, awful class. Unorganized, unhelpful, uninteresting. Stay away at all costs, he makes it needlessly complex and it's brutal. Studying for this final will kill me.

Very very bad experience. He doesn't post any answers to any of the assignments/midterms (despite saying he will) and this makes it soo hard to study especially when the slides he posts and uses in lecture don't make any sense. Very hard class made way harder by poor teaching and zero recourses.

Super fun class…if you're a masochist. Brutal class all around made worse by ambiguous teaching and prof's insistence on making you memorize useless proofs. Avoid at literally all costs, I'd rather get curb stomped than take this class again.

Worst class I've taken at UNC. Made me question my sanity. If I could afford therapy I'd go because of him. Don't take, idc how much you think you can handle it. Listen to the reviews. Run! RUN!

This has been the hardest class I have ever taken at UNC. He wants you to fail. There is no study guide only past tests and there is no answer sheet so you better hope you're doing it right. He expects you to just memorize all "short" proofs from the slide. Good luck even interpreting his slides. I would avoid this class at all costs.

David makes the class so much harder than it needs to be with useless proofs and derivations while simultaneously making no sense and not explaining anything. A little bit on Youtube taught me more than him the entire semester. His slides are like a stream of consciousness that makes no sense to anybody but him. Just don't take him.

DO NOT TAKE THIS GUY. There are others who offer MATH 347, just take theirs later if you have to or join a waitlist. THIS GUY IS THE WORST PROFESSOR AT UNC. he genuinely doesn't ever respond to emails and when confronted in person he "wrote my name down" and told me to email him AGAIN after 15+ emails with no response ALL SEMESTER. learn from me.

Don't take 347 with him unless you're already confident you'll get an A. Tangents during lectures and graded questions and homeworks that are much harder than what's discussed in class. Proofs and examples are confusing, and exams are difficult and account for 80% of your grade. Stay away if you can.

70% of your grade is tests. Lectures are convoluted and confusing; you'd be better off self-studying but attendance is required. Unreachable via email even with in class follow-ups. Material isn't too hard, the teaching and expectations are what make this class so difficult. David is very sweet, just not a great professor.

Linear isn't hard material, but this class was nearly impossible. Only grading criteria shared was the floor for an A, so no way to anticipate your grade. Exam scores are consistently lower than he expects, but he blames students and will not curve. Very arbitrary grading on exams and unclear instructions. Unreachable via email.