Jukka is THE GOAT HOLY MOLY he is legit the best professor I ever had. The 30 series for math is very weird because it touches on several topics that are somehow related to each other rather than focusing on one topic like calculus or linear algebra does. 30B in particular can be tricky without prior knowledge of linear algebra. The course is half a continuation of the concepts learned in 30A, and then the other half is linear algebra. However, Jukka is an inccredible professor. Winter quarter for me was difficult for a multitude of personal reasons and I often did not have the motivation to go to my classes, but Jukka always made his lectures feel worthwhile. I would miss a couple of weeks, but immediately catch up after attending a single lecture. I of course recommend going to each of his lectures, but in case you fall behind, Jukka makes it very easy to catch up. I wound up learning a lot in this class and doing well on his tests, despite how rough my winter quarter was. When he lectures, he speaks with a lot of enthusiasm that can honetsly convince anybody to care about the course material. Dude has to be one of the most charismatic people I have ever seen. 1000% recommend taking this class with Jukka (30 series is also easier than calculus, guaranteed)

If you’re debating whether to take Bennoun or Jukka, without a doubt choose Jukka. Every other student I know who chooses Bennoun over Jukka always regrets it. Bennoun is a lot more boring and keeps the same tone throughout lectures, while professor Jukka is super funny, super engaging, and presents the energy to students that makes them want to show up to class. Highly recommend this class, and he hosts office hours nearly every day. Funniest and most engaging professor I’ve had at UCLA yet. I didn’t do so hot on the midterm but I got a B+ on the final, this was because of a mental experience at the time. Anyone can get an A- in this class with effort minimum

I took LS30A during my summer quarter and waited to take the LS30B until my winter quarter. At the beginning of the class, I was very nervous because I was not able to recall all the information that I had learned in LS30A, but since the first day, Professor Jukka was helpful and understanding by providing practice problems that would refresh my memory in case you could not remember all the information in LS30A. I believe that the reason I enjoyed this class so much despite it being a math class was due to Jukka's teaching style, he always found a way to make the topics easy to understand. At the beginning of every lecture, he would set time aside to revive the information from the lecture before, this way making it easier to understand the connection between each lecture. Overall he is a great professor and if you have to take this class, you better try to take it with him. His midterms and Finals are challenging but fair, there is nothing in the final that he did not go over in greater detail, besides he often hosts review sessions before the midterm and final to make sure that all his students are on track to get an A. It is clear by the way that he teaches that he actually cares about the education of his students and wants us to succeed

Amazing dedication both to helping students that struggle while keeping more advanced students engaged. Lectures and slides are given with brilliant clarity. Office hours are helpful and enjoyable. Makes pop culture references and jokes to keep things from becoming monotonous and is about to drop a sick new mix-tape.

All I want to say is that if you have taken Calc and did well in it, really consider not taking this class. You might be under-challenged. I was convinced to take it by a friend who was premed who told me my GPA >>> Challenging myself. Not true at all imho.

I understand that many people, including my friends, had a completely different experience than me in the class. We all agree that Jukka was a real G. Professor Flippy was amazing as well: he was a great teacher who made the class 100x better with his presence. Jukka was almost as good, which is still saying a lot.

I regret taking this class because:
a) I was bored with the material
b) The lab / coding is really just busy work and I hated it

I liked taking this class because:
a) I loved all my classmates, they were really vibrant and fun people
b) the prof is iconic

Some people had a great time, others didn't, and for various reasons. It was fun sometimes, but towards the end it was really a slog :\

Legend

I didn't even have Jukka but I only heard great things about him lmao

An amazing and kind professor that I am honored to have taken class with! Do yourself a favor an take his class. I promise you will not find a more passionate professor...

I LOVE Jukka, and 10/10 would recommend him to anyone. For tests just study his past exams and the materials he gives you and the midterm and final will be nearly identical to those. Flippy and Puffers are my favs, so just a shout out to them.

If you're confused about anything his office hours are usually helpful, pay attention during class, and do the homework and you'll be fine. Definitely a pretty easy math class and if you have the chance to take this series I would. The coding is a little hard at first, but my TA's were always really helpful if I ever got confused, make friends in your lab section and that helps too. Daniel and Michael were my TA's for 30A and B and they were both great.

Love Jukka! He is such a great professor. Has a very different style of teaching and I personally enjoyed his lectures because of this style of teaching. The textbook that we use is essentially free and the homework load isn't bad at all. Great class. He really wants his students to do well. Lab was interesting - it seemed relatively useless in 30A, but it is the foundation of lab for 30B which is a lot more useful in my opinion.