No because the way before I took this class I thought the reviews were weirdly obsessed with Jukka but GUYS I'm telling you he's such a good professor. This class is so so manageable to get an A in, he explains everything so well and so thoroughly that the only way you don't get one is if you slack off (like me..). Anyways! I will say there is a lot of busy work and you probably will forget an assignment here and there because of how much there is—3 classes a week, and per class, there's a pre-class activity, pre-class reflection, and post-class reflection. Luckily each one is worth so little of your grade and you can have late submissions. If there's one thing I can recommend DO THE PRE-CLASS ACTIVITIES. It's not like LS 7 where the readings and Achieve is so annoying—no these are actually pretty short and so so helpful, so take the time to do it. It makes lecture so much easier. Each lecture was only 50 minutes for us but somehow he covered a substantial amount of material each class without it ever feeling like too much or overwhelming. I also sobbed in a bush for 3 hours after the final because I studied the entire quarter's worth of material the week before finals and didn't have enough time to review everything, but I still somehow ended up with an A- because he grades super generously. Plus the capstone project is literally worth free points it's so easy. I also loved my TA Lucy she was the best. This class is a slay and you should take it with Jukka 100%

If you are a life science student stuck in the 30 series, take Jukka's class. He is the best. The class is challenging, but he provides excellent lecture materials and is engaging (and often funny). His assignments and homework are clearly related to the topics we're learning and are excellent prep for exams. He also has many extra office hours, where he goes over homework problems and weekly quiz answers, and review sessions for the midterm and the final. He was one of my best teachers at this school.

I am just not a math person, so this class was challenging for me. Jukka is very helpful though so if you have to take this class I would suggest having him. I was really struggling to understand the material and he was very accommodating in trying to help me as much as he could. I had the class online so this could be part of the problem. I feel like the grading is very fair. Almost too fair. I didn't understand anything in this class and still somehow finished with an A- which stunned me. So if you are like me and don't really like math, this class will be challenging, but if I was able to get an A I'm sure you will be able to as well.

Really great professor. I often watched the recordings on 2x speed instead of staying caught up with lectures but I think Jukka was really funny and helpful. Tests were similar to what was done in class, but the lab sections were a bit difficult and graded pretty harshly (you have to do coding). "In the dark of the night, if you find yourself forgetting what the point of all of this is, please remember our discussion of linear algebra again with the black bears."-jukka, 2022.

Jukka had raving reviews so I had really high expectations going into the class but was kinda disappointed. He's a cool dude, very eccentric and definitely cares a lot about his students but I never learned a single thing in lecture. We always spent like the first half reviewing last lecture's content and then the second half he just answered pointless questions. He didn't really explain any topic well and the textbook didn't explain that well either so I was lost a lot. Managed to get an A by talking to other kids who took the class and was also blessed with online midterm and final. The coding labs were manageable IMO, def harder than LS30A but not impossible. There is a final capstone project at the end where you have to put together a sort of research paper with your group but the grading is super lenient. Overall, Jukka's a fun prof but didn't really learn much from his teaching style

Jukka was a funny professor who was always there to help his students during office hours. He did give out a lot of homework but it helped for the midterm and final. I’m selling the textbook! Text me at **********

Great professor! Would take again.

I took Math 3C with Prof. Keranen(or Jukka, as he preferred us to call him), and thoroughly enjoyed it. He's a hilarious, intelligent guy. We talked about Portal in class for 5 minutes one day.

His class is slightly more abstract and mathematical than others, but I found it engaging, interesting, and not extremely difficult. He goes out of his way to answer students' questions fully and to ensure that students know what is on the exams.

The material itself for 3C is a bit of a hodgepodge of random mathematical concepts thrown together, but it still gives you a better understanding of math as a whole. Jukka is a 10/10 professor and if I have the chance I will definitely take a class with him again.

Very funny professor, always had some good jokes. He really cares about students understanding and does a LOT of extra office hours. His tests are tough but he really tries to give everyone the necessary tools to succeed. By far the best math professor I've had at UCLA.

***LS 30A and LS 30B***
Your overall course grade will be determined by the better of the following two:
1) 5% Clicker + 10% HW + 15% Labs + 25% Midterm + 45% Final Exam
2) 5% Clicker + 10% HW + 15% Labs + 15% Midterm + 55% Final Exam

What other professor actually lowers the homework load by 2/3 because of student reviews?!!!!!! And goes to bat with the LS office for us when the labs are too hard!!!
Definitely take Jukka for the LS math series, his tests are way clearer(and funnier) than any of the other professors and he gives sooooo many practice problems plus makes a study guide that shows exactly how many problems there will be, what order they'll be in, and EXACTLY what skills each one will test.
He makes his own slides and gives actual math examples (which you'll find the textbook extremely lacking in) for all the theories we learn. I've heard his office hours are useful unless there's too many ppl asking very different questions.
Labs can be challenging, especially in LS30B, but that's the LS core's fault, not Keranen's. They involve coding graphs or functions to better understand the systems we're learning. They do help to connect concepts, but the lady making them seemed to forget halfway through the quarter that most people had no prior coding experience. They give you the coding syntax needed for each lab in the beginning of the quarter, but that tapered off until TA's had to share everything and if they didn't you were screwed. This quarter they stuck in a super easy coding basics quiz for 3% of the lab grade, then the rest is 9 labs (1 a week except lab 7 was suuper long and difficult so was due a week later at the last minute) but only the 7 best lab grades count.
My TA for LS30B was Daniel Sun, he was nice but explained pretty slow. During the last quarter, discussion sections were structured 1st going over hard/important problems from last /next homework, then starting the lab with whatever time was left. Each lab takes maybe up to 2 hours to complete depending on prior experience or lab difficulty. Homework is due every Friday and also took around 2 hours.