Koffi's lectures are pretty easy to follow. I sometimes complain that he goes over a concept for too long, but that can be good for some people. Pretty available for whenever you need extra help. Homework assignments are heavy. PLEASE don't save them for the last day. Overall solid professor and I wouldn't mind having him again.

TAKE HIM! Professor Koffi is so good. I took him during the summer and I'm meh at math, but still understood it! He's really kind and always makes time to explain things to people, and doesn't say the typical "we're wasting time, just read the textbook to understand". He truly cares us, you can tell. The homework was a bit intense, but that's since it does help to build a better foundation and the exams are usually easier than the homework he assigns. It was a bit fast, but that was since it was summer, I'm sure. I'd take him again in a heart beat! Accent is a bit hard tp understand if you aren't used to it though- but you get used to it after a few weeks or so.

The professor was incredibly kind all throughout the summer session. The class was relatively easy comparing to my other math classes but I'm guessing this is because difeq is a lot more of a problem solving type of math rather than like proofs and stuff. I liked the professors style of giving a lot of homework because it did make me learn a lot more but be warned it's quite a bit. He didn't set a deadline for any of the homework and just made it so that you can turn it in at the end of the quarter. Well, I procrastinated and the last few days were just misery. He makes you do upwards of 15 problems a day for every class day. The midterms and finals weren't bad however (very expectable) and he even offered an extra credit project. He really wants you to participate!

Prof. K is solid professor for multivariable calculus. Koffi has so many resources from making his own youtube videos, his recorded lecture videos, and other notes/problems just in case. He also always asks in lecture if people understand and is easy to reach outside class. Made Math 32a so much more bearable.

Great lecturer. Engaging course. Homework assignments were heavy but I learned a lot from this class. Will take him again.

I took Multivariable Calculus with Professor Koffi, and the class was a joy. The course required effort to be put in, watching the lectures and doing homework ahead of time. Koffi gave lots of great online resources and was always available to help answer questions. Be ready for content-rich tests.

You might think this class is hard, but it's not that bad. The problem is that the professor's teaching is really torturous. His thick accent and postmodern deconstructionist-style blackboard writing make it impossible for you to understand what he's saying and teaching. As a result, I had to study this course all by myself throughout the quarter.

Math 61 for the Summer 2021 term was originally taught by Prof. Ozel. When Ozel left in the middle of Summer session A due to issues with his visa, Prof. Enakoutsa came in to substitute. Enakoutsa did a nice job teaching Math 61.

Enakoutsa, while not the clearest lecturer (I strongly preferred Ozel's lectures to Enakoutsa's), genuinely cares about his students' learning and provides a lot of office hours for students to ask questions. He encourages students to unmute themselves in lecture to ask clarifying questions. While his answers aren't always the clearest, Enakoutsa is committed to improving his teaching ability. He takes student feedback on his teaching seriously.

His tests were rather straightforward and 24 hour open note. During the end of the course, Enakoutsa sent an angry email to everyone about one of his students' evaluations on his teaching (allegedly it said Enakoutsa interrupted students in lecture ...). He could have responded in a calmer, less defensive manner.

A combination of bad handwriting and an accent makes it slightly difficult to keep up. If you zone out for a minute you are done for and might as well leave and just watch the recording later. He is super nice though and a very genuinely caring teacher who remembers peoples' names and cares that we understand things well. He was accommodating of me not being able to come to live lectures on days I had work even though he asked us to come to live lecture. He did assign over 100 problems a week (lots of which were the challenge problems which would take 10x as long) but that might be because it was summer (6 weeks).

LOVED Professor Koffi. Prepare to go to office hours frequently as his problem sets are relatively difficult compared to what you learn in class, but once you do the tests are a breeze. This was one of my favorite classes and Professor Koffi is an absolute sweetheart who cares so much about her students. Absolutely recommend taking a class with him!