He replies to emails incredibly fast and doesn't mind if you ask him the very basic questions! His lecture is very engaging and connects the materials to real-life applications. His tests were fair and really required a thorough understanding of the material but manageable! Definitely one of the greatest STEM professors I have ever had!

One of my favorite professors! Homework is 20% (always got 100%), section is 4%, lowest midterm is 12%, highest midterm is 24%, and the final is 40%. Tests were comprehensive and required critical thinking but were always fair. Also, I don't like math, but Lior actually made proving derivatives fun! (it's clear he really cares for his students)

Hard course, but great professor. He is amazing in his lectures and actually cares about his students. Stops during lectures to answer all questions and make sure everyone is following along, 10/10. His homeworks are kinda lengthy and difficult but his practice tests/problems prepare you so well for the real tests. Awesome guy

Quick email replies show that he cares a lot about his students. The fact that every topic he covers throughout the quarter intertwines with each other is extremely inspirational. Many EC opportunities. Exams are hard but fair. Handwritings and the audio of recorded lectures need some improvements. One of my fav professors in the department. S tier

Incredible professor. Class was challenging but by far my favorite that I have taken!

Chill guy, truly passionate. I was scared for this class, but he made it fairly accessible, and the partial credit on exams was SUPER generous as long as you were able to display your understanding of the content. Expect to study a good amount, but the total amount of content is bearable. I would recommend! BTW do the extra credit!

One of my favorite professors at UCSB so far. It is a challenging class, but he explains every topic very thoroughly and makes sure students understand it, rather than leaving it up to us to learn on our own time. Homework can be long, but helpful in the end because they are similar to the tests. Tests are fair and relate directly to lectures.

One of my favorite profs in the chem department. Very accessible outside of class and truly cares about his students. His homework is easy but tests can be tricky (but fair)

Challenging class, but a great professor. He truly wants to see us succeed and makes his expectations very clear. He gives you everything you need to succeed, it's just a matter of you putting in the time/effort. He made the material really interesting and connected it with real-life examples. 10/10 this is how difficult classes should be taught.

Math and concept heavy class. Our averages were a bit lower than he expected which might be due to how he lectures, in my opinion. He explains it great for the people who get high Bs and As but not for the rest and the lectures and explanations feel catered towards them mostly. Go to OH & review sessions, those should help.

He is very helpful, perhaps too helpful. He really spend a lot of time to explain stuffs that people don't really understand, but that makes the class a bit too slow. However, I guess pchem for biochem students isn't really a tough course, so he's probably a fairly reasonable professor.

Professor Sepunaru has to be one of the best professors I've had so far. His lectures are engaging and really makes you think about the real life implications of the stuff you learn. He is extremely encouraging and is there to help you succeed. Go to office hours and don't be afraid to ask questions.