1.8
Quality3.9
Difficulty15%
Would Retake85
Reviews15%
Would Retake
85
Reviews
Rating DistributionOfficial
5
6
4
3
3
9
2
25
1
42
What Students Say
“He covers everything in class, you have to study to understand it”
CHEM1331 - 5.0 rating“Slide Heavy, Horrible and Tedious HWs”
CHEM1311 - 1.0 ratingClass Info
Online Classes
100%
Attendance Mandatory
44%
Textbook Required
57%
Grade Predictor
Your expected effort level
Predicted Grade
B+
Grade Distribution
Common Tags
Rating Trend
Declining
-0.87 avg changeRatings by Course
CHEM1332
3.5
(6)CHEM2333
2.5
(2)CHEM1361
2.0
(1)CHEM1336
2.0
(1)CHEM4365
2.0
(1)Difficulty by Course
1331
5.0
CHEM4365
5.0
CHEM1331
4.1
CHEM1361
4.0
CHEM1311
3.9
Reviews (85)
Inorg is hard, but stremlined the texts on pdf files and the book is the same one you use for the second half of inorganic chemistry
He is very helpful and his lectures are very clear.
Attendance is mandatory - and he does it by giving out quizzes, so don't miss class otherwise you will be dropped. He is not a very good professor, I didn't really learn anything from him. Take Bott instead, I basically learned everything from his reviews.
An excellent teacher!
not very helpful at all. powerpoint, very few examples, which does not help with the actual tests and exams written by Bott. i got an ok grade but by knowledge is null. had to listen to Bott's lectures for all the material all over again.. :(
a very goood professor
helpless. pretty much you have to work on your own.
I have always been a chemistry person but this class really blew me out of the water. Powerpoints are not created by him and he doesnt work problems hands on. The review was about 25% of the exams and the rest is learning theories on your own. Be prepare for fustration and lots of self studying.
This professor is a grad research inorganic chem professor. He is not at all suited to teaching an introductory course like chem 1331. He uses terms which are misleading, he talks quietly an has not microphone, and he often just reads the slides which he doesnt even make himself. So be awry that you are on your own when it comes to Professor Guloy.
I would not recommend this professor, unless you're into self study then I say go for it. When he teaches his lectures, they tend to be really confusing. He doesn't have a microphone so you have to strain to hear him talk. Monotone and pretty much rambles on and isn't really helpful at all.
Wow just don't take him. He makes no sense and you have to study on your own. No one can hear him talking.
Moves way too fast, and barely explains anything. Can't ask any questions during class so go to his hours. Self Study.
I always did well with science courses by studying + good professors. Guloy was the opposite. He speeds through slides & doesn't allow students time to copy. He expects you to know it all. This is a very tough class & you'll have to work extremely hard to pass. The class basically was an 18- wheeler slamming against me. I was just blown away.
i dont attendance class but he gives online poppers so just log into top hat and keep an eye out. very monotone and super boring, lots of self teach! if you can sit down and teach yourself then take this class! i just read through the power points and study them. tests are just like the practice tests.
Bad lectures. Too fast. Very vague. Hardly ever explains. Hard to understand.
You can tell that Guloy knows what he's talking about, but he's not very good at explaining. He's boring. He goes way too fast during lectures, but he does post the presentations online. Tests are basically questions from the practice tests, so it's fairly easy if you study those. Self studied from the textbook. Got an A
Guloy is a prof who at least tries to teach although this is his first semester of teaching chem 1331. At the very beginning of the semester he says there will be no curve, and that there will no extra credit. Your test grades are 94% of your entire grade and no matter how hard I studied, I still couldn't do well in the class. Don't take.
He covers everything in class, you have to study to understand it. If you can read you will do fine-which I feel like half the people here need to work on.
Honestly, he knows what he's talking about its just hard for him to explain the concepts and stuff. However, he does provide you with what you need to do well in the class. He gives you a practice test which you should focus on. The quizzes are also extremely helpful. Use his lecture as an "introduction" to the topics/read textbook to grasp concept
All I can say is good luck. His method of teaching makes everything complicated, even topics that are supposed to be easy. Taking notes is almost impossible in his class because he goes through his powerpoints way too fast. Unless you have a textbook, it's impossible to get by in this class. Be prepared for a lot of frustration and disappointments.
Bad grading criteria. No curve, no drops on tests. HW's are helpful but if you miss 3 he drops you out of the class. He knows his material but teaches very poorly. The book and tutoring sessions are your best bet. He goes very quickly through slides you can barely take notes. You're better off self-studying.
When it comes to chem 1331, there is really no "good" professor. Dr. Guloy is a very intelligent professor, but simply cannot teach it. For the 3 midterms, get together with a group of five or more friends and take your practice tests together, as well as screenshot and exchange them; the midterms are very similar or come directly from them.
He's the nicest teacher ever. Sure not everyone can teach well but its Chemistry, you have to learn it yourself most of the time. But there is nobody who would curve your grade up by two grade steps when you give your effort. I've regret for being disrespectful to him. ):
I wouldn't say he is a bad teacher. But eh. I think the class itself is what is hard in general. Read the book, take notes, review it a lot. If they still offer optional recitations GO TO THEM. They are extra practice as well as additional teaching. They saved me.
He has really long lectures and reads straight from his Powerpoint. I mainly relied on the textbook and study groups in order to do well in this class. He's very knowledgable about chemistry, but he can't really teach it that well. This is pretty much a teach yourself kind of class.
He is a nice person and does try to help students but his teaching style is confusing. Lectures are not really helpful since he mostly reads off of the ppt. There is HW assigned every week so be prepared for that. Tests are really random. You will have to self study and do your own preparation for all the tests. Just hope you get an easy test bank.
Guloy gives very monotoned lectures which is why I skipped alot or never paid attention to him. Although his lectures sucked, he did give some good materials to study before the tests. Unlike the other chem teachers, he opens up past HW so you can practice. Helped a lot since the test questions are nearly identical to the HW. Passible w/ self-study
Pros: Helpful when approached or emailed Lenient Gives extra credit in the form of Challenge Questions (Occasional, and dependent on the class) Cons: Lacking in teaching ability Presentations and slides are geared towards students who will be diving into biochemistry and OG chem next year Monotonic Barely does any examples in class
He's really cute looking, like an uncle. His lectures are extremely boring, and he doesn't really stop to explain things. He reads off the slides, but he does try to give some yet minimal extra credit and is very kind towards students so I guess that's a plus.
Very monotone but he gives many opportunities for extra credit. His power points aren't that bad compared to other professors... But they are painful to get through. He gives opportunities to take practice homework to prepare for tests and he is very understanding of situations. Nice guy.
Talks to much. Omfg. All over the place. Literally second day of class and everyone stopped taking notes after the first half of the class. Typing this as I'm in his class.
To anyone who take his class, make sure to know your contents on the test. Take practice test and all four of the attempts on the homework and learn the content through it. They will help you greatly on the test. Try taking some practice tests with your friends and you should get a B and up on the test. Be there in class for random pop quiz!
He reads from his slides for lectures, he does not know how to teach to students in a way they understand. It is important to go to class because he will give random pop quizzes almost every day. If you take this class, get ready to teach yourself with readings and online sources, his class will not prepare you AT ALL.
Horrible teacher. He doesn't teach at all, only repeats what is on his power point- which is just a word for word of the textbook. You will have a better chance passing the class by just reading the book. EXTREMELY boring and rude. This class is strictly self taught, so good luck.
Every time I went to class I just got more confused and his notes were all over the place. After the first test I stopped going to class completely and just used the time to study and I did much much better! Honestly you won't win with any of the chem profs here now that bott is gone, but go to chem tutoring trust me it helps!!! Also do practice hw
Lecture is a waste of time, but it's mandatory to go because he will give pop quizzes randomly later through the semester. The pop quizzes are an easy way to get extra credit. Other than that, you're on your own. Without the textbook you will fail and make sure to get as many practice tests as possible. They come straight from the test bank pool.
I can tell Prof Guloy pours his heart out at lectures, but he is just not good explaining. Your best bet is to get the textbook and take notes directly from it rather than from the class, because is impossible to keep up with his slides. Do all weekly homeworks, and before tests do practice HWs and the practice exam, the questions are very similar.
Guloy is a nice guy and knows what he's talking about but he can't teach well and would just read off the slides. 94 points of your grade is dependent upon 94 questions on the exams and the remaining 6 are from weekly homework. BE PREPARED TO SELF STUDY. Attendance is not mandatory but it is extra credit from the random pop quizzes that he gives.
The lectures are extremely boring-- impossible to pay attention in class. Tests are impossible. Your best chance to get a passing grade on a test is to get as many practice tests from classmates as possible and understand how to do the problems on them (and memorize the conceptual questions). The 8 pop quizzes he gives are bonus.
Compare to other professors, I recommend Guloy because he gives out the most extra credit (4 points max). Smith and Carrasquillo only gave out 2 points max. I mostly self-study and go over the HW questions as much as I can (test ques. are similar). If you have the opportunity to sign up for chem workshop, please do, it helps!
Arnold Guloy is one of the finest chemistry teachers at the University of Houston. He is an extremely helpful professor who is very knowledgeable on the topics he teaches and answers questions fast. Of all the chemistry professor on campus he gives out the most extra credit for a total of 4 points. I highly recommend him for any chemistry student.
In all honesty, the Science department at UH is not top-notch. That being said, many of the science courses you will take here are self-study and textbook based. Guloy, to be specific, gives pop-quizzes and his slides are filled with chunks of technical paragraphs. It is sometimes hard to hear him as he speaks so low. Rely on practice homework's.
He only reads off the powerpoints, which have huge amounts of information crammed into them. He goes through them too fast. The tests will have anything from the lecture notes or assigned textbook pages. Make sure to study those well. Inorganic 2 is one of the hardest in this major. This semester he gave no extra credit, but he curves anyway.
Not a good lecturer. He read straight off the powerpoint (which is a paraphrased version of the book). He is hard to understand and not good at explaining himself.
Chem at UH is the same for every professor, the usual 3 test, HW and final. He has super long slides that explain the history of the topic rather than the actual topic. However, you go to class and he takes "attendance" which is used for extra credit. Everyone goes to class and does other course homework and make it look like they pay attention.
Yes he reads straight from the slides, but his explanations to questions you ask him are pretty good! He gives all the resources you need to do decent in the class, it's just a matter of using them. Since this is a freshman class, a lot of ppl may not read text book. READ THE TEXTBOOK! It helps greatly with understanding. Also watch videos too.
Avoid this professor. Took him online over the summer and all he does is quickly ramble over long powerpoints and doesn't focus enough on exam material. He doesn't reply to emails sometimes and is very condescending and rude when he does.
He is not a good lecturer and does not do well at explaining for many students. He is not a student's teacher and more for people who may already know the material. If you have to choose him , please, study the homework, keep practicing and perhaps watch tom teets you should do well. WARNING! DO NOT RELY ON HIM TO HELP OR YOU WILL FAIL. Goodluck
He is not a good teacher. I hardly went to class much because it was pointless. He didn't have a good focus on the subject but of course, knew chemistry, he just wasn't good at explaining. He rarely answers emails . Yes, the lecture was boring. I studied lots and lots of practice questions from homework and online sources. Self-Study for sure.
Took him Inorganic Chem and for 2 exams, 1/10 of the points were testing us on "common names" of inorganic substances which he had like 100 of them in throughout lecture notes (some are not even in there). Bunch of useless things throughout lecture notes and he read them all during class. Avoid him if possible.
I beg everyone to not take this class its very rigorous and too much info to cramp within a given amount of time. The amount of work he you is more than enough that it will take a week to finish. There are other Chem professors in UH that is a lot better.
Guloy just did a lot of talking but left many students lost because he assumed we all took a chem class before and remember everything.He also would ask the class during was everything making sense and no one would even nod their head yes but he continues to move forward when it is clear the entire class is lost and he does pop quizzes. 0/10
Professor Guloy is a horrible professor. Your grade is 94% tests and 6% homework. This professor will not teach you chemistry, if you pass this class, you are paying the University of Houston, but you are teaching yourself, which you can do for free at home! DO NOT TAKE! Don't say I didn't warn you!
He doesn't deserve all these bad ratings, he's actually really helpful for chemistry and have made me understood more concept than before. If you pay attention to lecture and take notes of his daily quiz you can easily ace the class. Some tips would be to remember his pop quiz because there exactly like the test question.f
!!!!!!PLEASE DO NOT TAKE THIS CLASS. PLEASE DO NOT DO THIS TO YOURSELF!!!! I HAVE A TEST MONDAY AND KNOW ABSOLUTELY NOTHING!!!!!!! HE IS A TERRIBLE PROFESSOR YOU WON'T LEARN ANYTHING I'VE BEEN IN HIS CLASS FOR A MONTH AND I ALREADY WANT TO DROP IT!!!! ALL HE DOES IS READ FROM SLIDES FROM 4:00PM-5:30PM EXACTLY. I'M GOING TO FAIL MY TEST MONDAY!!!
DO NOT TAKE THIS CLASS!!! HE READS OFF THE SLIDES!!!! TESTS FOR THIS CLASS ARE CHALLENGING AND HE DOES NOT KNOW HOW TO TEACH!!!
Very smart guy, but is a very poor teacher. He does not interact at all with the class and reads directly off slides. Attendance isn't mandatory but he gives pop quizzes for attendance as 2 extra bonus points. It's not the end of the world if you get stuck with him, but you will have to work extra outside of class to get a good grade. Watch TomTeet
Not the best teacher, reads off of slides for all lectures. Attendance is not mandatory BUT he does give you attendance points that are a small percentage of your grade, won't make a big difference if missed. Lecture slides are messy and unorganized. If stuck with professor, recommend watching Tom Teats on Youtube, would've failed otherwise.
Professor Guloy is a decent instructor but you honestly don't have to go to lecture. You're going to have to do a lot of self-teaching anyway. You can do well in this class if you're a good test-taker. If you need extra credit make sure to attend class to do the pop quizzes, they add two points onto your grade.
You will have to teach yourself. He has a multiple hundred page long slide show that he just reads directly from as his lectures. He will talk for LONGER than the lecture period, and then give a 10 minute pop quiz almost EVERY class afterwards. There is no structure, help, or anything, he simply reads his slideshow. Most people give up on going.
He's a very subpar professor, which is standard for the UH Chemistry department. He reads off a powrpoint that's 90% useless the whole semester. No drops, curves, or extra credit worth more than 2 points. You really have to teach yourself. Watch Tom Teets on youtube during his lectures and you have a chance at doing decent.
DO NOT TAKE THIS PROFESSOR!!! I had to drop the course due to him not teaching well and just reading off the slides throughout the lecture. Waste of time being in that lecture because at the end of the day, you're going to have to self teach yourself everything. Everyone just watches Tom Teets, Organic Tutor on YouTube, or videos to learn chemistry
Take anyone but this professor. He gives assignments that are due the week before you learn the concept in class, completely reads off of the slides, hard to follow, talks very low. very bad class. save yourself.
Uni Chem I is the weed-out class. To pass, I recommend doing the homework for practice and watching Tom Teets' videos if you struggle with understanding the material this prof lectures on. It takes considerable effort (as any chem course will), but Prof Guloy's is alright as long as you work for it. He offers extra credit if you attend class.
Quite possibly the worst professor at the University of Houston, class was behind the homeworks and even behind the exams. He hardly covered
This guy can barley teach, all he does is read off the bored and even then he's still behind the other professors. Also no questions allowed for some reason.
Don't take this professor, he lectures on history and skips on the math required for exams(no option to skip lectures because he takes attendance through pop quizzes). Prepare to do most of the learning on your own time. I recommend Tom Teets for any chance of passing this course. First red flag: Actively proud of how many students fail his course
Honestly, compared to the rest of the chemistry Department, it's not that bad, but overall, just because you know chemistry doesn't mean you can teach it.
Honestly he just reads off slides in class, so you're better off just watching tom teets while he lectures, the exams are what makes your grade and its departmental so just get as much old exams as you can and practice practice practice, His gives an extra 2% if you come to at least 90% of class, again he's not the best professor but he's alright
If you don't attend class at all, I gurantee you will do just as good (if not better) than someone who does attend every class. Just not a good experience to Chem 1 for anyone starting college. I reccommend just studying on your own, and not even try to listen to what he says.
Very uncommunicative and doesn't care enough. I missed a test due to a simple mishap, and he took extended periods to reply to my emails and would not provide information on how to do an appeal process upon request. Over,all not very engaging when teaching the subject.
This professor teaches actual chemistry, but not the chemistry relevant to coursework and exams. Most likely at the end of his lectures he would have a pop quiz so that you can make an extra 2% total to your grade. Be ready to teach yourself chemistry the whole semester
Professor Guloy is a nice guy with good intentions. That being said I did watch Tom Teets mainly and used the class as a supplement. He teaches off of slides, but the main problem is that there weren't many interactive example problems like Tom Teets did.
Slide Heavy, Horrible and Tedious HWs. Bad teacher overall. "Do whatever you want to do with that."
You can tell he likes teaching what he teaches but the only problem is he doesn't know how to teach. I had to drop his course and retake because I'm failing, his lectures don't help, if you take him just self teach, it'll be better.
As of Fall 2025, the 1.9 rating seems misleading- there are worse Chemistry professors here. I doubted his teaching, but he covers test-relevant examples in lectures. Attend and take the pop quizzes- they're usually from the exam pool and helpful. Highly recommend PASS tutoring if you want to do well.
I tried giving him the benefit of the doubt, but I couldn't. lectures were all 200+ slide ppts, with few examples. has a no question policy and often gave attitude if someone asked. has daily "pop quizzes" that can add 2% to your avg. never really told us what concepts would be on exams, or what to expect.
All he does is read the slides, which are online. There are pop quizzes at the end of (almost) every lecture that he uses for attendance, but they are only worth 2% of the final grade. Tests are worth 80% of the final grade, so STUDY. Don't bother taking notes over the slides; just watch Tom Teets's YouTube videos and go over the notes in his bio.
He's a nice Filipino professor but that's the only positive of this class. I do not recommend him at the very least, he's a slide reader for lectures and doesn't like giving examples for problems. Pop quiz guy for extra credit. Knick knack paddy wack
Professor has good intentions but just reads off the slides and gives pop quizzes for 2% added to your final grade if you do 90 percent or more of those quizzes. I have a 98 in the class but thats because I took AP Chem in high school and watched tom teets. Lectures are 200+ slide powerpoints with little examples and some unrelated content.
The proffesor is average, hes not terrible but also not good at engaging with the students. The number one way to get an A in this class is to do the practice exams before every test and the mastery style questions for the exams. By doing that you get an idea of every type of question you could get on the exam. Practice tests are very very similar
HORRIBLE Hour and a half lecture that allows no questions Example problems done in class are not given explanation Missed an exam so I emailed prof Was told that I could sign up for the make up exam but couldn't find it I email again asking where I could access it He responded a day later saying all slots were used and ignored my question
His class is so boring, I think I only went to like 3 lectures the entire semester. The only reason I got an A was because I took AP chem in highschool, and I think I would have struggled in this class if I had not. My best advice for the chem department at UH would just be take a bunch of practice tests and do the mastery. and do NOT take Guloy.
If you ever find yourself in an auditorium with Prof. Guloy lecturing, I pray for you, because only a supernatural force can help you get an A. I sat on those dirty seats wondering what past-life crimes earned me a professor like Guloy. His lectures felt like a life sentence without parole. Godspeed to future victims, your survival will define you.
I do not reccomend him. Test review is way easier than actual test and he never responds to emails. I had an error on my test and i had to email him 13 times for it to be fixed. Never take him pretty sure 60 percent of the class dropped
Class Info
Online Classes
100%
Attendance Mandatory
44%
Textbook Required
57%
Grade Predictor
Your expected effort level
Predicted Grade
B+
Grade Distribution
Common Tags
Rating Trend
Declining
-0.87 avg changeRatings by Course
CHEM1332
3.5
(6)CHEM2333
2.5
(2)CHEM1361
2.0
(1)CHEM1336
2.0
(1)CHEM4365
2.0
(1)Difficulty by Course
1331
5.0
CHEM4365
5.0
CHEM1331
4.1
CHEM1361
4.0
CHEM1311
3.9