Very clear and nice. Straight forward lectures. He'll keep explaining things until you understand. Great Guy

Awesome! I have always struggled with Chemistry but this class is great. He really wants his students to learn and he will keep explaining until they do. His lectures are clear and concise. I am actually enjoying this.

Best O-Chem prof ever. Very clear and easy to understand. He only tests on the main concepts, not exceptions to rules to trick you. Very helpful in office hours.

The best prof I've had at Davis!!! Highly recommend!!

very clear and easy to understand. Makes ochem enjoyable!

good teacher...straight forward...funny guy...red sweat from hippos? What the?

He is a good professor...he explains things very clearly...his tests aren't that bad either...i was actually able to understood ochem...i highly recommend him...

great prof! clear, concise, to the point...likeable, helpful and even holds reviews for as long as u want before tests. Learned a lot in his class

There isn't a better professor out there! He's extremely nice and helpful. His lectures are clear and coherent. He made me understand chemistry! That's miraculous! His one class made up for every vague concept all the other chem classes created.

i loved the fact that he doesn't use tricky questions on the tests. very straight forward. the best ochem teacher ever!

I love Dean!! He's the best

If you can take Ochem with Dr. Tantillo , do it!! I hated Ochem, now I actually understand it. Thanks Dr. T!!!

He is my favorite teacher. I loved his class.

Great teacher, explains things clearly. Gives a reasonable amount of homework. Quizzes before each lecture were a hassle but helps students stay on time for readings. Grades fair.

Tantillo is great! his lectures are a little boring but helpful. You learn a lot in the class and it's not too hard if you just keep up with the readings. The midterm was EASY! I highly recommend him for the class.

The average grade for the first midterm was a failing 65%. His tests are ridiculously difficult and even if you get the answer right, he will still mark you wrong if you don't thoroughly explain it -- which is difficult to do on a 50 min test. Take Ochem from any other professor.

helpful, clear and willing to explain repeatedly hard concepts; don't think md 1 was difficult but it was not exactly the easiest (it was fair considering this is 128 and intended for chem majors and chem related majors)

Honestly, I think he is the best professor I've had so far (I also had Kouba, so that means a lot)! He explains one of the hardest courses possible in a middle school language, simple and understandable. I'm not saying the class is easy, he just does a good job and makes it interesting.

his mechanisms are like art and most of the kids aren't very good artists.

very clear, organized and logical. do the work he assigns and attend all lectures and everytrhing makes sense...as far as ochem goes

notice that all those comments predate the final.

Great teacher. He actually teaches!!! It's becoming more rare these days. Class is crucial, go to every lecture and study (this is O chem after all...), and you'll do well.

Dean gave challenging but very fair exams. Wanted students to understand concepts thoroughly, not just memorize specific examples. Great lecturer.

wow! i hope that explains it. Beautiful lectures and explainations, its very refreshing to have someone who not only fully grasps what they are presenting but is able to actually teach it and make you understand it. Highly recommended.

Tantillo has a very informal style of teaching. It's cool.

the way he lines up those mechanisms to patterns-- makes me want to become an organic chemist. his teachings gave me a very strong background of ochem. he simplifies what others complicate.

Very interesting and competent teacher. My favorite in chem so far.

I haven't seen anyone take such pride in making difficult questions for tests. However, I have to admit that he knows his material and is willing to help students understand. I also have to admit that this is Organic Chemistry and notoriously one of the more difficult courses here. Take this professor if you can. He's hard, but you'll learn.

Word of advice...don't bother trying to learn all the little details in the text, just study your notes b/c what's not in lecture will not be on the exams. Also, he likes to trick you on exams, so watch out for that. Other than that, he's a pretty good professor. He uses simple terms to explain stuff rather than using confusing o-chem vocabulary.

He is an awesome teacher. His practice exams reflect the difficulty and the type of questions on his exams.

Amusing professor who gives good, clear lectures. Exams are very similar to the practice exams. Just KNOW the notes and don't read the book. Small mistakes on exams pay a big price...as simple the problem it MAY seem (he's a tricky guy!). Hope he teaches 118B.

great teacher, exams reflect the practice exams. forces you to learn material through daily online quizzes... i learned a lot. definitely reccommended.

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My favorite Chem teacher hands down. Lectures were very intertaining. Class was as easy as ochem can get. He tells how how he will try to trick you on the exam, so pay attention and you can get an A. Exams are exactly like practice exams. And yeah, i don't think he liked dan, that's why he tried to make him feel stupid by giving him applauses.

Dr. Tantillo is a very clear, organized, and entertaining professor...im glad that i had him for intro to ochem~! Do all the problem of the days, practice midterms, go to lectures..and refer to the book when you dont get the concepts..u can definitely ace this classs..yea, wats up wit clapping for dan all this time?!

His lectures are very clear and his test are very straight forward. Be careful about under estimating his exams though, if you do well keep it up, he will keep you on ur toes. The lectures are absolutely essential.

Maybe it's just me. I wasn't used to his teaching style. Just pay attention VERY WELL in lecture and his practice midterms and know what he wants you to write on the exams and you'll do fine. He doesn't ask problems the way the book does, and you practically have to write short paragraphs for every problem on his tests.

He teaches very well and he's a funny guy. He makes sure that everyone understands the material and explains concepts well. His tests are a lot like his practice tests. Go to the review sessions and ask questions.

He is an excellent chem professor. Go to his lectures and do the practices problems. You will get at least a B. highly recommended!

Tantillo is a great instructor for Ochem. He is very organized and clear and his exams are very similar to the practice exams, he doesnt like to make it a secret what he's going to ask. The only thing I didn't like was how difficult he graded on some problems, like you could get 2/3 of the problem right and only 5/20 pts. But considering everything

Great guy and teacher etc. But he teaches a lot differently from everyone else. He doesn't really help prep for 118b/c at all. So in that regard I'd say don't take him. Nambiar and Nasiri teach a lot differently so if you take them for 118bc you're going to have a lot more work. Like I said great guy and he teaches well, just doesn't help for 118bc

Great professor. He writes everything out clearly on the board (contrary to Dr. Michael Toney -- terrible method of teaching O. Chem on slides). Make sure you go to lecture and pay attention in discussion. His notes are clear, and you could simply do his practice exams to expect what will be on the exams. Very helpful outside of class too.

Great lecturer. Class is tough. That's expected since it's O Chem. Practice exams are good indicator of the real test.

Actually he didn't teach 128a for fall 07', but he subed for Beal. In comparison to Beal, Tantillo is simply crystal clear in his methods of teaching! He makes O chem so interesting and easy to understand. I am just sad that he's not teaching 128a this quarter.

Dr. Tantillo is awesome. Keeps it interesting during lecture with his witty remarks which have the whole class cracking up. Makes fun of the head T.A....a lot. Overall, he's a great guy. Fun to listen to, fun to learn from.

He makes Ochem fun and if your'e willing to do the work, he's willing to help. He does expect a lot from students. And yeah, he does pick on the T.A. during lecture, but it's so hilarious!

Ochem is definitely one of my fave classes, probably because of Dr. Tantillo. He's a fun character - super entertaining. Not too bad on the eyes either.

He's pretty funny and helpful during lectures. the practice exam is very similar to the real exam. Even though there is a curve, everyone does so well so it's like theres no curve =[

I love Dr. Tantillo, he's so cool. Very knowledgeable and answers all questions. Ochem is difficult, but if you're going to take it, this course is highly reccomended!

The best professor ever!!!!

Dr. Tantillo is awesome. Great sense of humor. Also, he's direct; he'll tell you what you're expected to know for the tests. Yeah, the curve's pretty high most of the time, but that just proves that he's a good prof.

Cool class! Supercool Prof! he really prepares everyone for the exams thoroughly and for review sessions he stays as long as students need him. Now I have a newfound appreciation for ochem because of him.

An extremely bright professor and super nice. He's very helpful in office hours, during class, after class, and during the review sessions which he stays until no one else has any questions usually ~3 to 4 hours. He's very passionate about the subject and a really admirable person. Crystal clear and a fair grader. Organic Chemistry is my world!

Best ochem professor ever! I wish he taught the whole 118 series. Explains really nicely, tests can be tricky but very doable if you study and you can tell he cares about his students. He actually made ochem somewhat fun and that is very hard to do.

Best professor I've had at UCD (so far). Extremely helpful, facilitates conversation (even in 400+ person lecture hall), always takes questions. Exams are incredibly fair, draws upon *understanding* instead of rote memorization. Draw backs: makes you take 5pt quiz online before every lecture.

Teaches very clearly and well. Expects you to understand concepts, which he tests you on very thoroughly (You can not get a good grade by memorizing). He makes organic chemistry very understandable. Take him if you want to really learn organic chemistry. Got an 89% in the class and it was an A+.

Clear. Focused. Tests are fair.

Picky grader, but one heck of a teacher. He's clear and really helpful when you need help. Really cares for students (holds long review sessions which usually last 3hrs). Uses chalkboard and gives good lectures. Emphasizes on understand the reasons for everything (like why a mechanism occurs the way it does). Good teacher overall.

Nice personallity, very respectful to students, stays over ofter lecture paiteintly, tests are from the lecture, tests are resonable if you studied hard. i got C. I recommend him. lecture are very helpful, and can substitute the book if you have excellent memory. His problems are harder then in the book.

Dr. Tantillo is a great professor and he's super smart. He's a very nice guy who always answers all questions with a smile on his face.

very very good teacher and a very hard grader. I would rather take him and get a B than someone else and get an A

Helpful

Dr. Tantillo is a great lecturer and a funny guy. He has a deep understanding and love for the organic chemistry. And answers ALL questions during lecture. The sample tests are a fair indicator of the real thing. The Saturday review sessions are EXTREMELY helpful. Take his class if you can.

He is an amazing professor and a very clear lecturer. He is very clear about his expectations from his students and if you put a great effort you will surely do well. He is extremely helpful during office hours and is always willing to help. Definitely an admirable and unique professor.

He is an awesome professor. I am a transfer student, so I think that having him as a O.chem professor during my first quarter was really helpful. He teaches chemistry like he loves it. This quarter all my professors are horrible in teaching, so I will always miss Tantillo.

He has an interesting sense of humor that makes chemistry fun. The textbook is useless. All the info you need is given in lectures so you must go! His problem sets and tests are kinda hard so just try your best. He really loves O-Chem and you can tell. He makes O-Chem not as bad as other people make it out to be.

He's a great professor! His exams asks similar questions to his previous exams, which he posts online. He really does teach you to understand more than memorize. He assigns homework every once in a while, but they're not too bad... if you work in a group of friends. He's a very fun and helpful professor; always welcomes questions.

The best chem professor i've had at davis. Extremely enthusiastic about what he teaches, jokes around in class, and willing to answer the same questions 50 times. Genuine interest in helping students. Class is challenging and he mentions things not in the textbook in lecture. My favorite class this quarter though. Highly recommend this professor

Great teacher. He is genuinely interested in teaching and presenting the information in a way to help you understand it, rather then just telling you what everything is.

Professor Tantillo is one of the best professors I've ever had. His tests and problem sets can be tricky, but they're manageable. If you go to lecture and pay attention, you don't really need the textbook at all. He is extremely clear on what he wants you to know and what he expects of you. The problems of the day help too. Overall great professor!

Best chem teacher I ever had. Very clear and approachable. Tells you what you need to know for the test very directly. Explains why certain concepts are important and he ingrains them into you--yes, he will definitely ingrain them into you. Made me see chem in a new way.

Best professor I've had in Davis so far. Crystal clear in his lectures. They're all you'll need in this class.

First qtr at UCD, absolute fantastic OChem teacher. Don't need book because he actually teaches you, unlike M. Kurth who followed him. Sets the std high for all teachers, more should be like him! You'll learn so much, but even get additional info on the side without being overwhelmed! Really wish he taught the whole series... Enjoy!

Best professor at UCD, hands down. Crystal clear lectures, writes on the chalkboard, the practice midterms are exactly the concepts covered on the test, grading is fair. If you hate multiple choice and are better at explaining your answers, his tests are a dream come true. Best Organic Chem professor ever, you are lucky if you get him.

First of all Professor Tantillo is B-E-A-UITFUL. Second he is a great teacher. Very clear and loves questions. His class is very interactive. Everyone shows up. First midterm is easy, second harder, final-very difficult. I think he curves it so 80% and above is an A-. Take him if you have a chance. He really is the best teacher at Davis.

Really great teacher. Makes everything very clear. Doesn't mind if people ask questions multiple times. Office hours are extremely helpful. Very approachable. Grades fairly. Tests are hard, but if you are willing to do the work, you will do well. Definitely take him if you have the option

He is an amazing professor who is very clear on the level of understanding needed to do well in this class. It is definitely a difficult class, but he is very willing to answer questions. He holds weekly problem sessions that gives more practice to better understand material. Final is brutal, but the material learned is invaluable.

As a chem grad student, Dean is probably the best professor I've ever had. He does his absolute best to accommodate everyone's learning styles and reexplain things for you if necessary. He truly cares about physorg and his students success, in and out of the classroom. A great guy with great funny shirts! Check out his Esty shop: Scienceforeveryone

Very very amazing lectrue content and the knowledge, and useful if your research is about molecular dynamics or physical organics related. Will retake it again just for fun!!! Love and respect the Dean and Yusef, thry are really nice instructor and TA, respectively!