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!

Lewis is the best prof I have ever had for chemistry. Especially since o chem is known for its difficulty, this man has made my life so much easier because he cares for all his students and grades fairly. Sometimes it seems he is the only prof that takes this pandemic into account for student's lives. I am trying to take the full series from him.

Professor Lewis has a great class set up and you can tell he wants you to learn! Homework is graded which gives grades a boost!

Lewis is such a genuine and caring professor, I really think he wants his students to thrive. Tough quizzes but he makes a brutal subject bearable! Don't be afraid to reach out to him for anything, he's so generous with his time and very patient

Taking this series with Lewis has been great! He is extremely understanding/caring for his students, even though the material is tough. Harder than 109A in my opinion, but doable with Lewis. Course grade made up by biweekly quizzes, biweekly mechanism uploads via gradescope, mastering chem, bacon, reflective essays, and final quiz.

Lewis is a straightforward, nice OChem professor! Tests are fair. Lectures are clear, organized, and taught in an understandable way, but you do still have to do all the book problems and homework, take solid notes, and study hard to do well. (Review based on pre-pandemic times). Take him for OChem if you can!

Dr. Lewis is a great professor, he taught the material very cleary, I really enjoyed being in his lectures. The course had a lot of homework/quizzes, which can be good if you're not doing very well in one area. I would definitely recommend him to anyone looking to take O chem.

I cant imagine why hed ever have a bad review. Truly one of the best professors Ive had despite teaching a very challenging class. Super flexible and accommodating during the pandemic and supplies you w/ more than enough info for the quizzes. Read the textbook for tough chapters and you might even enjoy ochem more than gen chem. very organized!

Lewis might actually be THE best professor I've had at UCSB. He's always accessible through email and shows a deep level of care and respect for his students. The material is hard, but Lewis really does his best to set you up for success. As long as you put in the work (textbook reading, book problems, lectures) you'll get at least a B

Grade based on weekly mastering chem problems, weekly quiz, 3 reflective essays(very easy), BACON quizzes and final. Most points came form quizzes and mastering chem so make sure you stay on top of material. Lewis was extremely organized and very caring. It's a tough subject but lewis makes it very bearable. Lectures are divided into 10-20min vids.

Lewis is an absolute gem. The material is hard, but you can ace the quizzes by watching the lectures, taking good notes, and doing all the book problems. It's honestly not that hard if you put the time in; book problems take a while, but they pay off. OChem wouldn't have the reputation it has if Lewis taught everyone's first course.

Lewis is a great lecturer who really cares about his students and truly wants what is best for them. The course itself and the topics are difficult but Lewis makes it understandable. He is very accommodating to any issues that arise. Do the book problems and do hw and you will be fine.

He is very organized, responsive, makes sure to answer all the questions, and usually responds to emails quickly, very kind, flexible when it comes to extending deadlines. Some lecture videos are not helpful, sometimes there are harder and more complicated concepts and lectures are not that helpful in understanding it. Some quizzes are very hard.

One of my favorite professors in the Chem department aside from Joseph. I really like his teaching style & really appreciate that theres no midterms/finals while distance learning. Very approachable with office hours basically 4 times a week which saved my grade. Practice problems can get you to pass any of his weekly quizzes too.

In a pandemic, you would think the professor would be more accommodating towards increasing the quality of teaching organic chemistry. Nope. You read the textbook and teach it to yourself and he gives a short 10 minute video over very complex topics. Only good thing is that about half of your grade comes from BACON, mastering chem, and essays.

The most caring genuine professor UCSB has to offer. He is considerate and understanding. He cares about his students and being a good professor to an extent I've never seen before. He is so hard working to ensure he thoroughly answers every question. Unlike most profs, he wants to actually connect and bond with his students. VERY approachable.

Lewis is a true gem. His tests can be pretty hard, but he's super straight forward in what he wants you to learn and what you can expect to be on the test. He also gives you the opportunity to get your test regraded if you missed points unfairly, and he gives extra credit. He's also funny and really made THICCPEPTIDE an answer to a quiz question

Genuinely one of the best professors I've had at UCSB. I don't like organic chemistry, but Lewis made the lectures interesting and broke the material down so that it was very understandable. The tests were very fair and followed lecture.

Lewis's class may be difficult, but he is one of the best professors out there. He is organized, very accessible out of class, and cares for his students a lot. His exams are overall difficult but as long as you read the textbook and do mastering chemistry and book problems along with the topics he covers on his lectures, you're guaranteed to pass.

Amazing lecturer! Lectures were organised and clearly structured to make you really understand the material being taught. Lewis is a really friendly guy and helps all students. To succeed it is important to read the book before lecture, attend the lecture and do practice problems. Not too difficult if you also put in the recommended work!

One of the best profs I've ever had; his lectures are clear and helpful, his tests are straightforward, and he's always willing to help after class. I had Bruice the first time and got a D; with Lewis, I got an A. He always answers emails quickly and lets you do test corrections (and he gives so many points back!) Take his class and thank me later!

I LOVE HIM. Go to lecture, skim the textbook, do hw problems, attend CLAS aka put in the work and youll succeed. Hes so organized and lays out everything you need to do to succeed. There is some extra credit. Though he doesnt do a massive curve like Aue, the homework and clicker questions will bring your test scores up indefinitely. Very funny 2

Lewis is one of the best profs I've had, cares a lot about his students and always available to help by e-mail or office hours. Very approachable and kind. His tests can be tough but they're always fair. He doesn't try to trick you he just wants you to understand the material. Would 100% recommend him.

109B is challenging! Personally, I wouldn't take Lewis again. He is nice, extremely organized. He goes through each mechanisms so fast and expect you to have to do the application yourself. He doesn't explain, make relations between the mechanisms that help you understand. He is not engaging; his voice is monotone. Not the best lecturer. Nice guy