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CHEM 109A
LEWIS R B
Robert Lewis
4.4
125 reviews

125
4.4
CHEM109A . Lewis R B 7 Years Ago

Professor Lewis is the most incredible professor. He goes slow and writes everything out on the board. You leave the class actually understanding Ochem. His tests are long and free response, so it's important to manage time. Beware the last question on one test was worth fifteen points and I was unable to get to it don't make the same mistake.

3 helpful 0 unhelpful
109A . Lewis R B 7 Years Ago

Professor Lewis is one of my favorite professors to date. He will write out elaborate explanations for any question you have, even over email, and usually extremely quickly. You can tell he really wants his students to do well, and I'm so lucky to have taken one of his first taught courses here at UCSB. He comes across as very humble and caring.

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109B . Lewis R B 7 Days Ago

Love his teaching style and makes an incredibly difficult course a little easier. That final was rough though.

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109B . Lewis R B 19 Days Ago

As much practice problems as you can

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109B . Lewis R B 27 Days Ago

I really love the way class is formated, and the fact that you have the previously recorded lectures on your canvas it helps fill in the gaps in my knowledge Having this option allows me to go back after attending the lecture and answering some of the questions I previously had. I think this is something Anyika should implement into her class.

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109B . Lewis R B 8 Months Ago

Professor Lewis wasn't horrible but wasn't the best either. He likes to gatekeep his material, doesn't post ANY notes from lecture or any exams taken during the course (only answers). He is very laid back. But I will say that his exams are easier and are very similar to his worksheets. Overall I think he is an okay ochem professor.

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109C . Lewis R B 9 Months Ago

Ochem is hard in general, but Lewis does his best. HIs exams for 109C were not bad, but they were filled with questions that tested specific textbook knowledge, so READ THE TEXTBOOK. He's super responsive/helpful in Canvas discussions, so take advantage of that too. 109C wasn't as bad as 109B, but you still need to work a lot to get a decent grade.

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109C . Lewis R B 9 Months Ago

OCHEM is definitely tough and requires self-discipline and commitment—you'll feel overwhelmed at times. But Dr. Lewis is one of the best professors out there. He teaches with such clarity and calmness that the material feels more approachable. He's also kind, patient, and genuinely encourages questions.

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109B . Lewis R B 11 Months Ago

Dr. Lewis is a clear, organized lecturer who could probably teach this whole series in his sleep. Tests are difficult but reasonable, and there are lots of resources to help you succeed. My only significant complaint is his seating charts, which take the anonymity out of grades and make most students feel really insecure.

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109B . Lewis R B 1 Year, 6 Days Ago

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.

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109B . Lewis R B 1 Year, 1 Month Ago

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.

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109B . Lewis R B 1 Year, 3 Months Ago

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.

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109B . Lewis R B 1 Year, 3 Months Ago

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.

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CHEM109 . Lewis R B 1 Year, 9 Months Ago

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

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109C . Lewis R B 2 Years Ago

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

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109C . Lewis R B 2 Years Ago

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.

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109B . Lewis R B 2 Years Ago

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.

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109B . Lewis R B 2 Years Ago

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

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109B . Lewis R B 2 Years Ago

He is definitely a solid professor, I just feel he's a little overhyped. His lectures are clear cut--he teaches out of the book and you know what it is that he will be covering each day if you do the homework. He answers questions well, but I just feel that he can get stale. Quizzes/tests were challenging very doable. Preferred Gainer.

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109B . Lewis R B 2 Years Ago

Hardest chem class I've taken, but that is partially due to my workload this quarter. Lewis is undeniably the best Ochem professor here, but it's still ochem. You WILL fail if you don't put in the work. As everyone has said before, DO THE BOOK PROBLEMS AND GO TO OFFICE HOURS IF YOU NEED HELP.

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CHEM109B . Lewis R B 3 Years Ago

Lewis is amazing. I think he was meant to be an ochem professor, like this was his calling or something. He's clear, fair, direct, and knowledgable. His tests are difficult, but in my opinion COMPLETELY fair, it's just the nature of the class is difficult. Lewis makes this class reasonable and puts in a lot of time to answer questions on the forum.

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109B . Lewis R B 3 Years Ago

He is the best professor for ochem hands down! His lectures are clear and he talks in such a calming manner. His tests really are fair, he doesn't try to trick you and he asks things that you should be able to do. Lecture is pretty important, and he often pulls questions from the small details of lecture, so take good notes and make sure to review!

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CHEM109B . Lewis R B 3 Years Ago

Lewis is an amazing professor. His forum is a lifesaver!!! He will answer any question you have with paragraphs if necessary. Had him for 109A and B and I can't imagine taking ochem with anyone else. Ochem is a challenging class but Lewis makes it doable.

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109B . Lewis R B 3 Years Ago

Professor Lewis is pretty accessible for help outside of class. I did pretty well and would recommend him as the stronger o-chem professor for UCSB.

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