i took him for both 30A and 30B, he is a nice guy, lectures are straightforward and his powerpoints are exactly like the book. Best way to study for this class is by making lots of flashcards with all the reactions. If u can memorize all the reactions and mechanisms then his tests are a piece of cake. His finals tend to be easier than the midterms probably cause the averages were really low on the midterms. I honestly don't understand how people do so bad on his tests, i found the class easy but it does takes time to memorize all the reactions. Even tho people say that u don't have to memorize, you really do need to and it will make everything easier!!!

I had him for both 30A and 30B.
He is really a nice guy. He is in his office often (although I personally have failed to go) and really wants students to come to get help.
His lecture is highly coordinated with the textbook, so I advise students to do all the homework assignments and understand them. Reading the subject before the lecture REALLY helps because he clarifies the theories/concepts. His midterms are a little difficult but VERY do-able. The final was more easy. Unfortunatly b/c he is a new professor, he doesn't have old exams. Just make sure you are keeping up with the class and do practice problems as much as you study the concepts.
Simply put, you really have to earn your grade for this class.

Had him for Chem 30A and 30B. His exams are difficult, but fair if you read the book and attend all his lectures, which I did his for 30A and received a decent grade. But If you don't attend his lectures, like I did for 30B, you will struggle like I did... (damn 8 am class!!). His lectures are well organized. He uses power points slides that basically mimics the book. He posts them up on the web so we can print them before his lectures. His practice midterms/finals closely resembles the real midterms/finals (structure wise). He will state if the practice midterms/finals are harder/easier than the real exams. Take him.

i think karim is one of the better ochem professors from what i heard from my friends about other ochem professors. his lectures are clear, straight foward, and (once you get used to ochem terminology) easy to understand. the only thing that i didn't like about this class is that his tests are very difficult. to do well in this class, the best strategy would be to organize all the reactions into categories, and memorize them. for example you should have a category of reactions that turn reactants into alcohols...and whatnot...it will help you answer the synthesizing questions on his exams...