Sheehan is a great Chemistry teacher...especially at John Jay, where Dr. Berger is the Science Chair. BEWARE! Berger is an absolutely TERRIBLE teacher! There is a reason why Sheehan's class fills up so fast- everyone knows SHEEHAN ROCKS! But Berger seriously needs to be forced into retirement.

Professor Sheehan is the best professor John Jay has. If you find yourself in one of his classes consider yourself lucky. He's a great guy, and a really down to earth personality with a terrific sense of humor. The perfect professor in my book!

AWESOME I left JJ to teach b/c he made me love chemistry Great person! Administration should let him make improvements. Cares about stdt success,teaches an awesome lab instills students with good ethics and emphasizes accuracy and precision.Cares about safety/SCHOOL DOES NOT. Beware of John Jay Labs, very unsafe.Be patient like to exp labs alot.

I was so glad I took Sheehan this semester. He's pretty awesome. His teaching style is just so much more effective. Plus I still remember how he met with me & gave me a tour even when the school was closed for spring break. There's a reason why I did tremendously better this semester. BETTER TEACHER! (anyone is better than BERGER).

Professor Sheehan is the most amazing professor I've ever had. His sense of humor brings the classes to life. The man has a gift for teaching. Any student is lucky to have him for class.

He really knows what he is talking about. The material may be difficult at times, but as long as you put your time into it, its not too bad. He is the best professor for General Chemistry.

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He's a good teacher. The only things are that sometimes he's hard to hear and writes too lightly on the board.

He's a good teacher. This is definitly one of those classes where you have to study. Dosen't give a curve in his class.

best gen chem professor u can get..very helpful..explains clearly..fun professor..gives handouts to make up for not writing on the board

Excellent, excellent teacher. Taking general chemistry with Professor Sheehan is the best thing you could possibly do at John Jay. And if you're lucky and he's teaching lab, make sure to sign up for that section. You'll learn EVERYTHING you need to know to be able to move on successfully in the forensic science program. He's also hilarious.

Uses handouts to teach which become VERY helpful come exam time. The best chem prof to take at JJ, not neccessarly beacuse he's that good but rather because everyone one else that teaches chem at JJ SUCKS

brilliant professor. gives hands out that are really helpful. very knowledgable in his field..friendly..fun..u will love this professor. i got an A in the class without even trying

He's a great professor. If you have a question he'll be more than happy to explain it for you. He hands out sheets with notes for Chem 104 that are extremely helpful. He tries to makes jokes, not so funny, but at least he's trying. Definately take him if you can.

Great Teacher!!! I had him for chem 103 and 104. You should take him he is really good and is extremely knowledgeable besides there aren't any better profs. for the subject. I would take him for any other chem class but hes not teaching them. BOOOO! Class isn't that difficult and he tries to make it as interesting as possible.

great professor!!! He makes the work easy and gives out handouts. also holds study groups before exams.

Amazing professor. If only he could teach every science class!!

I don't know what the last person was talking about. Apparently they can't read the text book or follow along with notes. Professor Sheehan is awesome. He's really helpful and explains everything. And only if you really don't get something does he send you to tutoring. SERIOUSLY, LEARN TO FREAKIN READ THE BOOK AND TAKE NOTES.

He is an easy professor, all the notes and all his lessons are very useful, i had him for 103 and 104 and he is very clear. If you have the opportunity to take him, do ir because he is fun.

he takes time to really go over the material. he makes sure everyone participates and understands the work. he is the head of the chemistry department, so he makes the tests so he goes over the information that is on the test so it is easy to get good grades. make sure you go to class and do the OWL homework and you'll do just fine!

He is one of the best professors of chem I have ever known.When you try to fall asleep on his lectures, he starts joking around so you keep up with what he is saying.He can go over the material you dont understand for hours so by the end youll get it!!!!

he was great lecture professor really funny. he had handouts for all his notes and explains anything if you ask him.

This professor does not go through it thoroughly and his tests are extremely hard. It's like he does it on purpose. I would take it with another professor.

Sheehan is the man. He's a really good chemistry teacher, and he's a funny guy. If your into chemistry, this is the professor for you. If your not a chemistry person, his humor makes up for it

I LOVE this man. Even though he does sometimes stray off the topic, he really knows his stuff and explains it the best way he can. He also makes tons of corny jokes that are pretty funny. However, don't expect him to go over everything in class. Sometimes you have to write your own notes and do some extra reading. This is college folks!

He is clearly a very good teacher. The course is doable but you must commit. Most topics on tests are covered in lecture or recitation. My only complaint is that we blasted through the material on the final exam in 1.5 weeks and it counts for 40% of your final grade. I would have gotten an A if this material had been covered more thoroughly.

Awesome Professor is awesome! Very funny, very clear, very friendly. He knows what he's talking about and explains very well. If you know your chemistry, this is a great Professor to take.

He is a great professor. His jokes are pretty funny and he is always in a good mood. He runs through topics rather quickly but he gives printed out lecture notes for everyone in the class so that you can review them both in class and at your own time. Within the notes everything is gone through step by step so you're always set to go.

Professor Sheehan is a really nice guy. His classes are usually funny, and he knows what he is talking about. However, it seems a lot of the tims he gets off topic, and also takes a long time to get through topics, which leaves you cramming before the test. Also NEVER fall asleep in his class, or use laptops because he will embarrass you.

Great professor. He may get off topic, but you will learn what you need to. Take his course

It seems that everyone I've ever spoken with that had something negative to say about this professor are the ones that don't do their own reading or take their own notes but expect to come to class having their professors explain every tiny detail at the slowest pace. He may not be the best professor in the department but he's definitely effficient

Great professor!

He's a great professor. He knows what he is talking about and he explains it well. The tests are fair, and easy if you study. His jokes are so bad, they're funny. If you have the choice, definitely take him.

Great Professor who is passionate about chemistry. Read the chapter before class so it will be easier to follow lectures. Gives review sheets and goes over the exams with you . As long as you read and do a lot practice problems you should be okay for the exams.

Pretty easy-going and he can teach really well. Tests aren't bad at all. All multiple choice. Homework is annoying. Sorry, but if you're in FOS and you're struggling with his class, you're not going to make it. This is coming from a current senior in the major. Everything you learn from this class will be repeated to you for the next three years.

Taking him for CHE 103, if you actually study like he motivates people to do ALL THE TIME, you WILL pass. Never got anything less than a 95, but then again its just Gen chem 1, and I LOVE chem. TAKE HIM!

To do well, motivation and passion for sciences helps. Use the MSRC tutors. Professor Sheehan's lectures are clear, though he runs out of time and misses covering a lot of material. Concepts and math seem easy, but PRACTICE is essential. Exams are tough, but doable. HW is time consuming, but good practice. Kind and funny professor. I learned a lot.

He is fun, easy and helpful if you pay attention to the lecture and study hard after school. If not, don't take this class because it's extremely hard. He is easy but the class is not. You have to do the HW, it's mandatory for Chemistry course but it's very long. If you have any problems, just email him he is there for you. Very helpful.

Sheehan was great. For the amount of information given, he explains it as well as possible but recitation helps a lot. The exams are all multiple choice and on what he teaches. If you pay attention and study, you'll do fine. The homeworks are brutal, but do-able. The people who say it's impossible to pass, I would say that's their fault, not his.

I like professor Sheehan, despite the lack of effort he puts into his classes. His class is straightforward, do your homework on time, do readings and do A LOT of outside studying. He does what he can with the small times allowed for lecture, but he does waste a lot of time talking, and is very boring lecturing. To his defense, thats chemistry.

sheehan is super funny and a great person but needs to slow down. dont be afraid to ask questions (even about grades or correcting him)

Very sweet and caring teacher, you need to do your online homework but if you pace yourself its really not that bad. He probably makes a joke at least once every class so he lightens the mood. Fair grader as well!

He is a nice guy and is funny at times. He is a great professor. He grades very fairly and tries to help kids pass. His test can be hard if you dont study or pay attention. But if you do everything youre suppose to do, the tests are easy to pass. He gives you printed slides and they are super helpful. Just by studying them you can pass the tests.

A professor who knows his stuff! Very well informed and his lectures are full of information! But the homework material isn't very helpful despite being told the homework is the key to success!

Professor Sheehan is a wonderful person and professor. For anyone complaining that the class is too difficult - all it takes to succeed in this class is to actually put in the effort and study. The exams are NOT difficult, so if you actually do the work required to succeed you will do well. He's very fair and he wants everyone to do well.

I took this class in Spring 2020 so I got to experience Sheehan with in-person and online classes. He always provides the notes in every class that you review during the lecture. He goes over tricky subject material and is overall a decent professor. Read the textbook! This is vital for the exams. He always talked to us after classes, a nice guy.

Valid professor, keep using the textbook and practice with the recitiation sheet. Ong we only get 20 mins break out of a 4 hour lecture. I had 10 minutes to take a shit and i couldnt find toilet papers so I had to rush to lecture. But class was valid I got a high grade. He is OG would recommend, no short cuts or handouts. RESPECT UNC!

Professor Sheehan is a good professor overall. He's fair in how he grades and is always willing to answer any questions you have. He runs his Zoom classes very much like an in-person class, so he does expect participation and will randomly call on students.I definitely recommend studying the textbook thoroughly and doing plenty of practice problems

Chemistry is going to be a difficult class if you only rely on given assignments and what you learn in class, which he emphasizes. Study, attend workshops, ask questions, take notes, etc. and you'll excel. There is A LOT of homework. I love his occasional jokes and he's a great professor. You're not going to like this class if you want an easy A.