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.

Robert Lewis is seriously one of the best professors here and he really cares about his students. The bad reviews from his class are from those who either got a bad grade or simply didn't put enough time. Organic chemistry is hard in itself, but Lewis' exams/quizzes were always fair. Nothing was unexpected on the exams and do book problems!

Goat, highly recommend for ochem. He was very accommodating during the pandemic and even tho ochem was easier online than in-person, if you do book problems and keep up with the readings you'll do good in the class. His lectures are helpful and held discussions sessions where he'd go over material that was in the weekly quizzes. Really nice guy!

One of the best professors I've ever had. He readily admits mistakes and regrades quizzes/awards points when he messes up, and answers every email quickly. He even made time to go over a quiz with me over zoom fall quarter. Genuinely cares about his students, and even though the class is hard, he makes it bearable. If you can take his class, DO IT!

he was so hard and honestly did not prepare you well the only reason people did okay was because of the curve.

This course was the hardest one I've ever taken in my life. So much work outside of class, with minimal return. So many mechanisms to not only know, but implement in all sorts of different other reactions. Lewis did the best he could do teach the material and respond on Canvas discussion boards, but this class is just so absurdly difficult.

Lewis is a good lecturer but this course was made for giving up your major. I will hate ochem for my whole life

Though the content is hard, Lewis does an excellent job of explaining it. You can tell he wants all of his students to be successful! He is extremely easy to reach outside of class, an excellent lecturer, and an overall nice guy. My advice for studying: form lecture groups, do book problems, and attend lectures.

Professor Lewis is known for his clear lectures and fair tests. While Organic Chemistry is challenging, he equips you with the right tools. Utilize the textbook, attend office hours, and try unstuck AI for study prep - success is attainable with effort.

Live laugh love Lewis. His lectures are so clear and follow the textbook almost exactly. He makes himself so accessible, use the discussion forum!! Obviously a hard class but he provides so many resources so success is possible.

Professor Lewis is by far one of the best teachers I have taken at UCSB. I took him for all of the ochem series. These classes are definitely some of the hardest classes you'll in your second year at school but Lewis manages to simplify and tackle the course extremely well with thorough and neat lectures. Read the book and always ask questions :)

He has 4 exams in one single quarter. He sometimes has class on Monday and tests on Wednesday about what you just learned on Monday, which is IMPOSSIBLE to do especially for Ochem. You must get help from your friends who previously had the class to get good results. If not, you'll probably get a C or lower. He is the best among chem 109 though.

He has 4 exams in one single quarter. He sometimes has class on Monday and tests on Wednesday about including what you just learned on Monday. It's IMPOSSIBLE to do that, especially for Ochem. You must get help from your friends who previously had the class to get good results. If not, you'll probably get a C or lower.

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!

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.