Jukka is an amazing professor. He is really dedicated to his students. However, his class work is quite extensive. You should expect hours on hours of work. There are pre-class videos, pre-class reflections, post-class reflections, and participation quizzes for every lesson. At first this doesn't seem bad but as the quarter goes on his pre-class videos become quite long. I believe the longest was 30 mins. The homework assignments take a few hours as well(5-6). However, he assigns the homework assignments in the activities mentioned before. You should definitely stay on track. If you do, you will not struggle as much as I did. I was generally doing fine on the course until the final. I completely panicked and thats why my grade went from an A to a B+. Also the midterm materials and final materials have information you probably wont be tested on. I found quite often that I understood those materials but then came the exams they didn't test you on the same information. All the other reviews you see here are true. You are most definitely capable of earning an A but you have to stay on track and invest a lot of your time. Office hours are a great time to seek homework help. He goes over most of the problems there. Coding I struggled with, if you make sure to ask questions during your section and finish it during those two hours you should be fine. The point I am trying to get across is that to do well in this course you must invest a lot of your time. I often felt quite frustrated because I couldn't always balance the workload for all my classes. Thats a me problem. This is just a heads up but I would recommend taking his course. Seriously though, stay on top of the work and you will do fine.

This class was decent definitely challenging if you are used to traditional math. I personally didn't enjoy this class but Jukka as a teacher was ok definitely moved a little fast I found the recorded lectures very helpful because you can pause and rewind. The hw assignments are pretty rough if you wait till the last minute. The final was very difficult so make sure to do well on the midterm to protect your grade.

jukka is the best teacher for this class. he is clear, helpful, and very approachable. he uses two beanie babies in class that you ask questions to (flippy and puffers). he is also very funny during class and makes the lessons fun and entertaining as well as easy to understand. i would love every class at UCLA and pass every one if ey were all taught by the penguin god himself, jukka

I am going to be completely honest by saying that although I got an A+ in this class, I did not feel like I learned anything. The 30 series is decently confusing and most of the time you feel like you're learning the same thing every single week. Jukka overall was a good professor, but he was not very helpful and was honestly very passive aggressive when students asked questions. The exams are decently challenging, but the practice exams are very similar. There is much opportunity for extra credit in this class so getting an A is super attainable.

To the new Bruins who sucked at Math in HS/did not do great on the placement exam,

You will do great in this class. This class was far easier than LS 30A this quarter.

Jukka provides an immense amount of support in this class and genuinely wants to see all of his students succeed. He will do his best to make sure you understand the concepts presented in lecture & will make himself available to ensure your success. He offered online office hours twice a week, in person student hours twice a week after lecture, and individual appointments if you ever asked. If you do not understand a concept, the resources are there to help you.

About the class in general:

Lecture sessions involved a slideshow with participation iClickers - correct/incorrect answers did not matter. You got the iClicker points as long as you participated. He will discuss the proofs behind the famous trig limits/power rule/etc, but you don't need to know any proofs for his tests. If you really don't want to show up, make a few friends in the class & have them tell you when the iClicker is coming (not that I condone skipping lecture - I did not skip lectures).
Lab session involved a weekly quiz starting Week 2, followed by a lecture on whatever he felt we needed help with. Quizzes are extremely basic problems (2) about concepts from previous week's HW. As long as you did the homework and checked your answers with the solutions he posted on Monday, the quizzes are easy points.
TA sections involve a worksheet, 5-6 problems, relating to a concept he taught in lecture that week. My TA spent 20ish mins each section re-explaining the concept on the worksheet, and then you had the remainder of the time to work on the worksheet. If you don't want to come to the discussions, there is no penalty, but you are responsible for the worksheet, due Sunday.

Workload:

HW: 40-60 problems due at end of weekend each week. Gave whole class extensions to Monday afternoon, multiple times. If you turn in the HW late, admittedly the course readers never enforced the 10% late penalty (half my HWs were late). You do have to put in effort & show work, but HW grade is based on complete attempt at problems, not correctness. Yes, the HW takes a lot of time.... don't always start on Sunday like me.
Worksheet: As stated before, worksheets were 5-6 problems, and you only had to do ~50% of the worksheet to receive full credit for it.
Post Lecture: There is a post lecture question graded on correctness to assess your understanding due at the end of each lecture day. There is also a post lecture, 1-2 sentence reflection on what you learned that day. Takes under 5 minutes to do.

Midterms/Final:
He gives practice exams and detailed study guides for each midterm/final, detailing concepts, specific questions he assigned relating to said concepts, and exam format. Jukka literally has a paper in there telling you HOW to study for the exam (what to do, in what order). He also hosted office hours going over practice exams/midterm/final content.

Practice exams were just like the actual midterms/final, down to question format and everything. He gave away the second midterm on a silver platter by giving "hints" on each question and by asking the minimum/max of a function... and then showing the graph of said function afterwards. Class median on midterms/final was 87, 92, and 85. That should tell you all you need to know.

I took the time to do this whole writeup because of the previous reviews. If you failed Math 31AL this quarter, one of the following is true:
- You need to speak to CAE
- You need to reconsider the attitude/effort you approach school with
- You need to fix your study habits

I believe Jukka is a great teacher. If you fail this class, it won't be because of him or his tests.

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!!!

Jukka is probably the best professor I have ever had at UCLA. His lectures are engaging, he clearly loves teaching, and he provides the most academic assistance I have ever seen from a professor. He holds multiple hours of office hours every week and hosts two review sessions before each exam. He is very adamant on ensuring that all students in the class do well and are actually learning the material as well. If I could take another class with Jukka, even if it's not math, I definitely would.

tl;dr: Jukka is the goat

Keranen is an absolutely amazing professor. There's no reason to hesitate when picking Keranen. If you can take him, DO IT. Decently easy A and you also learn a lot.

Really good and passionate professor. I think he was one of the best professors who motivated me to do things for this class. His grading scheme is very forgiving, and i would definitely recommend for a class like this. He has a lot of office hours that are available, his midterms are just like he says they are and its just a good class to be in. I found this to be a useful class.

Jukka is the best mathematics professor I've had at UCLA, and is in my top three across the entire school. He is extremely well-prepared, does a great job explaining the complex topics brought on by an upper-division linear algebra course, and has a wonderful personality. He holds several office hours each week, including one on Sunday and extra review sessions before exams, to help assist with the weekly homework assignments and to answer questions about the subject matter.

Each of our two-hour lectures opened with an extensive review (sometimes taking up to a third of the total class time) of the previous material to make sure everyone was staying up to date and following along. After that, we went through two slide decks with a short break in the middle. The slides were published the evening before so we could prepare before coming the next day. After class, our one-hour discussion section went over some additional practice problems in order to get some hands-on work with the material. At the end of each day, we needed to submit a class reflection, detailing the new content we learned and giving us an opportunity to recall everything so that it stays fresh.

The class was not too difficult, but it also did require quite a bit of work. Even though the class is condensed into six weeks, rather than ten, we still covered every single slide that would have been presented in the ten week course. Jukka helpfully left the last unit (on inner products) off the exam to give us a chance to study for a full week.

We had one midterm exam, attendance was required, and the biweekly discussions had a worksheet submission. There were ten homework problems a week, not taking more than a couple hours in total.