I'm not very religious, but I do wholeheartedly believe this man is an angel descended from the heavens. Jukka is the best professor I've had at UCLA so far, and I 100% recommend taking him if you need LS 30A/B. He is super understanding, accommodating, clear, and just an all-around nice person. Sometimes in the middle of lecture he'll just randomly say how much he loves us and it makes me want to cry he is so sweet. His slides are really easy to understand - he does a great job of turning pretty complicated topics into very organized presentations. He does give a lot of small assignments throughout the week (like pre-class/post-class work) that can be difficult to keep track of in the beginning, but once you get the hang of it it's not bad at all. His exams were very fair and he did an amazing job preparing us for it. In his review sessions, he'll literally go over problems of the exact same format before the midterm & final. He also provides practice exams and a whole slideshow of practice exam problems so you'll be set. Near the end, he gave more extra credit because it seemed like he just wanted everyone to get an A and not be stressed. The coding in 30B was harder than 30A, but I just got a lot of help from my TA and LA and I was fine. And it's not bad considering there wasn't any coding on our midterm or final. Overall, Jukka is your best friend so take 30B with him if you can!!!

Great professor in many ways. Was very and engaging in class, and provided so many opportunities to learn the material which I mostly failed to take advantage of. My only complaint is that he is very much a "math guy" and thus gets very far into the weeds of what makes certain math concepts work the way they do, I think the class would be easier if he focused more on what you actually need to do and how to do it, but I do see the educational value in his approach. Basically he is the perfect professor for math majors. and still a very good one for everyone else.

He was constantly holding extra sessions to help people and really did everything possible to get you prepared. I slacked off in this class and absolutely bombed both midterms. When I actually sat down and went through everything in preparation for the final I realized that if you actually keep up with the class both midterms are extremely management, especially midterm 1 don't slack on midterm 1 its free points if you're actually putting in the work.

He has nothing but you're best interest in mind. I don't remember my exact midterm grades, 70 something on midterm one and like a low 60 on number 2, so rough stuff. However, after the class had a pretty rough performance on midterm 2 he actually changed the grading structure of the class just a few weeks before the final so that your final would replace your worse midterm if you did better on the final. (He actually originally made it so that your better midterm replaced the worse one but was told he couldn't by the department, which was great for me cause both my midterms were lackluster but worse for the class as a whole), which I think just shows that he really wants the best for everyone in his class. After I actually utilized everything he had been putting out there, and honestly I still just scratched the surface as it was mostly cramming, I was able to get a high grade on the final and escape with an A in the class.

The guy literally must be working 80 hour weeks if he is providing as much stuff for his other classes as he did for this one, so many sessions outside of class and they're all recorded!

Overall definitely a legit class so don't go in thinking you'll coast, maybe you will if you took it in high school, but if you actually take it seriously and use what hes giving you an A is very very achievable. Oh and also he tracks attendance with iclicker so seating is brutal so get to class early and don't skip.

I am naturally not the best at math, and having taken my first calculus class at UCLA was definitely a challenge. That being said, Professor Jukka was the best person to teach it.

Don't be scared with the workload, that truly is the way to learn. He is the funniest professor I've had so far, and genuinely cares that his students learn and actually understand.

I do strongly encourage that you go to office hours, because that's where you can ask all your questions.

If he is offered as a professor, choose his class!!!!

The GOAT of the UCLA Math Department. If I could take him for every math class, I would. As a professor, he is absolutely unbelievable, and you'll only understand what I mean once you've taken him. He cares so much about his students and got your back.

Jukka is nerdy, funny, and professional all in one (my best compliment). Occasionally he throws a really funny and lowkey joke out of nowhere during his lectures. Very clear on the class objectives and materials. Lenient grading and reasonable homework. Also super responsive and responsible. He even pretends there are students going to his office whereas in fact he was just recording an extra video going through hw/worksheet with no students present in his office hours. Highly recommend.

This class honestly felt like a full-time job. I took an otherwise light workload the quarter I enrolled, and I still found myself overwhelmed at times. We had weekly worksheets (graded for completion), homework assignments with about 30 questions graded for accuracy, daily classes with mandatory attendance for clicker questions, weekly quizzes (which ended up being canceled due to the fires—we just did them together in class), and reflections plus 1–2 short questions at the end of each lecture (though I don’t think he’ll keep that part for future quarters).

My biggest tip: the study guides he gives are an accurate reflection of what will be on the exams. If you can confidently get through the practice midterms, you’ll be fine on the actual ones—he slightly changes the problem, but the concepts stay the same.

Jukka truly cares about his students. He’s got his quirks—like his deep love for math and commitment to helping students—but he genuinely wants you to succeed. The material is hard no matter who you take it with, so don’t think another professor will necessarily make it easier.

One thing to know: Jukka does teach straight from the slides, and sometimes his explanations can be hard to follow, which is why I highly recommend going to his office hours (he holds them almost every day, even Sundays) or your TA’s sessions.

I also took another class with him, and he was the only professor who went out of his way to fight for us—he advocated for allowing cheat sheets and giving us real study guides. That alone says a lot about his character and how much he wants to support students.

READ. THE. SYLLABUS.

Not because there's anything astounding you need to know about the course, but because it will give you an idea right off the bat of just what a wonderful human being Jukka is.

Calculus can be a very tough course for many. Jukka knows that and treats every student with the utmost care and respect as a result. Never once did I feel like he wouldn't understand my extenuating circumstances or that he wanted me to fail. Myself and my friends all agreed that the dedication he puts into making comprehensive study materials and organizing review sessions (often on the weekends and late into the evenings, out of his own free time) is unparalleled. Tests were difficult but I never felt they were "unfair", as he thoroughly prepared us for the types of problems we could see on the exam.

Yes, the other reviews are right, there is a lot of homework. But the class was never a burden on me and I've never been this engaged in a math class before, simply because of the immense work and joy Jukka has put into 31AL and, I assume, all his other classes.

To anyone reading this who may have their doubts: This class, like most, is all about how inspired you feel to attack it, and Jukka is someone who inspires you to do your best and succeed. I look forward to taking a class with him next quarter and can confidently say that he is the best professor I've had at UCLA thus far.

Jukka is the absolute best! He was very willing to help all of his students out by hosting multiple student hours a week. He would often go over homework questions and explain to us how to work through it. The workload is kind of a lot but as long as you start early and not wait until last minute you should be fine. The class is structured in a helpful manner with a post class reflection assignment as well as content review questions (a question based on material taught during lecture). It really helped with practicing what we just learned that very day. His practice exams are very similar to the actual exams and he is very fair in the types of questions that are on the midterms/final exams. I cannot stress enough how much of a good teacher Jukka is and if you have the opportunity to take him, you 100% should!

Student hours were held at least twice a week and are very helpful if you go to them. He often reads off the slides (which are posted) but they are often confusing with too much notation. As other reviews say he does not solve problems in class which makes it difficult, but that is what he does in his student hours if you can make it. Lots of work- homework every week takes around 3 hours if you actually do it and is graded on correctness (supposedly?). Midterms and final were fair and fully understandable if you do the practice tests and go to the review sessions. GO TO THE REVIEW SESSIONS- he often gives hints on what topics to really make sure to take a look at before the test and they are almost always on their. Overall very nice guy who tries to take his students but in my opinion has too much work that ends up not being too helpful in the long run.

Jukka's class was very helpful and I feel like I learned a lot. I took Calc AB in high school but I feel like he explains well enough to enter without a background in Calc. He gives a lot of homework for this course which is around 30-50 questions per week due Sunday night. The homework was very time consuming, but I felt like it prepared me enough for the course. He has 2 midterms and 1 final (all in-person) and they were very fair. I overall I really enjoyed and felt like I learned a lot in this course, but the workload was very heavy.