Dr. Lewis is a great lecturer, especially given the difficulty of the material he teaches. His tests, grading, and curves are very fair. As long as you go to lecture, study, and do assignments, you will do well. I would recommend reading the book chapter of any confusing material to gain clarity. I would also highly recommend the book problems.

Lewis does a good job of relaying the info and providing supplemental videos to go over. I recommend reading the book and doing all the practice problems. Make sure to draw out every mechanism and take no shortcuts. His tests can be hard so make sure you really understand the concepts on the practice midterm. You get what you put in.

Best professor I've ever had at UCSB. Puts in so much effort if you ask for help (use the discussion forums). Is slow and thorough in his lecture notes which became perfect for studying for tests. Class does so well no curve was needed for on sequence. I wish I could have him for every class :)

RESPONDS TO EVERYTHING Professor Lewis has good lectures and will engage with questions in class to clarify. The class is hard but before exams, looking at the discussion posts is helpful. These posts are remarkable how he responds to all of the 80 questions online, in his own time and they're very helpful

Lewis is wonderful and has very clear expectations for what you should know; I never felt like the tests were a surprise. If you can, take it a quarter late (109a in winter instead of fall) as the later quarter gets a greattttt curve that saved me. Put in the time (more than you think you need to) and you'll be rewarded!

had him for the whole 109 series, is a great lecturer and provides very useful practice exams before the exams. doing the practice book problems is necessary to succeed on exams. very kind and understanding when you dont complete hw on time and office hours are helpful to clear up confusion. difficult course but put in the time and you're good

Had lewis for 109 B/C, & he is one of the best professors I've had at UCSB. I don't understand how he manages to make such a complicated subject so well organized & so much easier to understand. He has the sweetest energy and is so kind. He wore Hawaiian shirts every Friday. He does his best to make Ochem as bearable as possible, & has fair exams.

Lewis is a great professor, despite the subject's challenges. He equips you with essential tools, you have to choose your own approach. Some require more time to grasp topics, while others need less, but success is attainable with effort. Dedicate as much study time as you need, utilize textbook, and attend office hours.

Prof. Lewis genuinely cares about your success in the class. There are many ways to get help outside of class - forums on Gauchospace where he will respond with a detailed explanation, office hours, and CLAS. These three resources + book problems will guarantee your success in the class.

Most organized and clear instructor I've ever had. Lets you know exactly how to succeed and gives you the tools to do so. Believe the hype. Go with Lewis

Absolutely incredible, you won't find another professor like him.

5% people got A/A+ and he said the class did pretty well and refused to apply any curve.