Was not always clear but was helpful. Be prepared for long homework assignments.

If you put the effort in the class you are almost guarenteed at least a B. He creats practice test that are exactly like the exams. He does have an accent but is understandable. If you have questions, stop by his office and he'll answer them.

He's actually a decent teacher, students in his class just dont try. He is a nice man who does good research and is willing to help if you ask. The material is extremely easy, and can easily be mastered. We just have a lot of stupid people in the class.

3 test 1 final 1 lab final, very helpful, go to class, sit in front seats to understand, test are just like practice testbanks and practice test. Overall i really like him as a teacher. He knows what he's doing, Plus awesum 10% curves!!

LOOK AT THE FINAL GUYS IT WAS EASY...ITS ALL THREE OF THE TEST HE HAD CORRECTED AT HOME THEE MAN THROUGH US A BONE

Parra will help you with anything as long as you take the time to actually go see him. He posts tests online, and a lot of the questions he gives show up on the exams (verbatim)... so do them!!! This is a difficult course, but Dr. Parra is fair-He curved the exams and the final grade.

Good class. Rough part was that there were 4 grades all quarter. Prof. Parra encourages students to go to office hours -- go if you have a problem -- it's worth it! Gives quality notes. If you put forth the effort, you should do fine.

I dont agree with the negative comments on Dr. Parra. He is very nice, grades easy. All you need to do is go to class, do the work, get an A....um hello? thats what college is

Dr. Parra is a very good teacher. He is approachable and cares about his students. He is very fair with grading and testing. The accent and crazy phrases are just a bonus. Be prepared to work hard, but it pays off in the end. I never thought I would be able to pass chem and I got a B+.

I think Parra gave the class almost every opportunity he could to help us to do well. He let us drop an exam and had a bonus at the end of the quarter. I didn't even have to take the final exam. He does not pick favorites and he is very accesible outside of class. If you go to class and go to him for help, there is no reason to do poorly.

I disagree with most of the comments posted about Parra. He has an accent but if you actually listen in class you can understand him completely. He gives his students every chance to get an A. He allows people to drop the lowest test and lab grade. Parra gives students 2 chances to take a test for each unit and he takes the better of the 2 grades

Good gen. chem. professor. Fair and straightforward with his expectations. Made chemistry very understandable for me.

Parra tells you exactly what wants (for the most part) but most people choose not to take advantage of it. How much you learn in his class is completely dependent on you which is what college is all about. He provides the tools to actually learn but he also leaves open space where you can still pass even if you aren't the greatest at the subject.

Although several people seemed to dislike Dr. Parra when I took P-Chem with him, he is actually a great professor. The people who disliked him simply did not even give him a chance, and never once asked him to clarify something that was unclear-which he would always do!!!! GREAT professor!

His accent was hard to decipher at first, but it quickly got easier to understand. He does good examples during the lectures, and the exams are easy if you've practiced the problems in the book. He's very available if you need help. Don't miss the labs because the first ones are the easiest. It's easy to get an A if you just follow his directions.

dr parra is on okay teacher. his exams are not actually very difficult if you study. His problems on the exam are easy compared to other chem profs. he pretty much takes problems from the book and puts them on the exam. You can hardly show up because he teaches right out of the book and still do well, just read the material and you'll be fine

Eh... He was ok, I guess. I had him for both CHE 111 and 113. His teaching style focuses on examples rather than concepts, so you'll have to teach yourself concepts at home before tackling the optional (but highly highly HIGHLY recommended) homework problems. The tests are fair and are really not that bad. Just walk into gen chem ready to work.

Seriously people, he's not that bad. He lectures straight from the book, and his tests are very fair and straightforward. It's CHEMISTRY! It's a difficult subject! Do the homework problems, study every day, and go to his office hours if you need any help. You will need to work hard to succeed in this class. If you show effort, he WILL help you!

4 tests, drops the lowest test. No homework or attendance policy. Tests are difficult but he is extremly helpful and a nice teacher.

Took him 2 yrs. ago for CHE 111, didn't study, and dropped the class after getting a D on the first exam. Took him again last year, studied hard, and got an A- in CHE 111 and a B+ in 113. Moral of the story: STUDY. Don't fault the teacher.

Dr. Parra is great! He is such a good teacher. I don't know why so many people are complaining. Just focus on the notes and example problems in the book and you will do fine. Chemistry is a challenging subject and Parra makes it much simpler! He is also very nice and approachable.

Dr. Parra is by far my favorite professor at DePaul... and it wasn't because he is easy! In fact, he is probably the most difficult professor I have had, but definitely the most caring. He makes you work so don't take his class if you're trying to skate by college... But if you put the effort in, he will match that 100%.

I am by no means a chemistry major, but Dr. Parra was a great teacher and his class really was not that difficult. He isn't going to hold your hand, but if you're still expecting you should not be here. He is a very nice man and wants you to do your best, but the class requires a lot of your own time and dedication. Poor grades are of your own doin

Great Professor! Very helpful if you want to actually learn and interact with him in lectures and labs. If he sees you as a diligent student who actually want to get an A in the class, then he would be extremely helpful. Tests are relatively easy. He drops the lowest grade!

He trys his best in teaching the class and willing to provide extra help after class. *Note: He is not the only person making the chem test, the chair makes these test.

The guy is AWESOME. He is very helpful. He loves chemsity and would love to pass his passion to you. four exams, drops the lowest. He expects a lot from you because he wants you to think, rationalize things scientifically, which is what i'm doing now.

O. Chem is not my best or favorite subject, but I loved Dr. Parra's lectures. He makes everything understandable without simply repeating the textbook. Lots of in-class examples. I have also taken Shelby, Carver and Rosenbaum, and he is my favorite of the four. I enjoyed his sense of humor and an honest attitude about the difficulty of the course.

Dr. Parra really cares about his students. His expectations are very clear, and he let's you know exactly what you need to know for the exam. If you're the type of student that doesn't ever come to class or doesn't expect to try-- then you're in the wrong class (not with the wrong professor). Don't take chemistry classes if you want an easy A.

CHE131 is lab. Parra is a great lab professor (I've heard he's a great lecture professor as well). He goes into detail when you ask for clarity. However, he is a harsh grader.

Professor Parra cares about his students and does really want to see them all succeed. Chemistry is not my strong suit but I am so glad that my adviser told me to take Parra's class b/c it was the best decision I could have done. The chem textbook will be your best friend in his class; he uses it heavily. I had him for lab and he was great.

Dr. Parra is a very knowledgable professor who cares a lot about his students and only wants to see them succeed!

Dr. Parra is hands down the most kindest, hardworking professor I've met at DePaul so far. He aims for student success based off of the Formative Practice Tests, sharpening skills assignments, nd he sends out practice exams he has used before before the date of the actual exam. Going to office hours is incredibly helpful, and he motivates well.

Dr. Parra is such an amazing professor. He is very kind, hardworking and genuinely wants everyone to pass and focuses on everyone. He is very helpful and sincere. He expects you to read outside of class (but that is literally every science class) but he makes sure you understand the concepts. Formative practice tests and key terms are also helpful.

Dr. Parra is my most favorite professor I ever took at DePaul. Whenever I would ask for guidance, he would always help me with a smile and cared about my success. He makes you work for your grade which motivates you to do your best. Do his practice tests and read the book! Go to office hours and you will pass!

Dr. Parra is a true inspiration. It is thanks to him and his support that I was able to succeed in this course. He did not create a stressful environment like other chem professors do and he provided helpful resources that would help you pass the exams. He was always welcoming students in office hours and would get excited to see them succeed!

Dr. Parra is an amazing professor! I have never had such a caring professor who really wants his students to succeed. Those who put low ratings likely didnt use all of the resources that Dr. Parra gave us to help us succeed. He was always available outside of class to help explain things in further detail & he posted extra practice assignments .

Dr. Parra is a great professor who cares about his students! The people who gave him low marks likely didn’t attend office hours or ask him questions one-on-one. If you are concerned about a lab, you can have him review it before a final submission. Make sure to read and attend all lectures.

had him for che131 and he tbh was not bad at all. idk y he has such bad ratings. hes kinda strict grader but if u go to office hours he'll tell you exactly how to write lab reports and i ended up with As. be careful abt formatting and little details cuz he takes pts off for petty things. other than that, pretty helpful during labs and a nice guy.

I honestly don't understand his rating because he was my favorite chem professor at DePaul so far. His lectures in class are very similar to what you will see on the exam, which has not been the case for ANY other professor I have had so far at DePaul. His tests are not a surprise, it is very similar content to the lecture and homework.

Parra clearly tells you what you need to know - no surprises on the test. His lectures aren't the best and you will have to put in work outside of class. Make sure to do all the homework because he asks similar questions on the test. If you want to ensure success, do all the book problems from each chapter and you'll be fine. Very easy class overal

I loved Dr. Parra so I'm not sure why he has such bad ratings. He gives A LOT of practice on d2l which for me was usually harder than the exams. Many people didn't do the practice until last minute which is why I think people struggled in his class. There are no surprises on his tests and they were easier than the other gen chem 1 classes.

Go. To. His. Office. Hours. no one will make you understand exactly what the prof wants except the prof himself. He is extremely helpful outside of class, but do know you have to put in a lot of outside effort. No surprises on the tests if you do the homework in a timely matter and ask him questions

His lectures are confusing sometimes, but he gives us the actual exams from past quarters that show exactly what will be on each test for practice. Gives multiple online quizzes (unlimited attempts) that count for 10% of the grade and for up to 5% extra credit to FINAL GRADE, so do the online quizzes! Go to his office hours for help with lab!

He is strict, but wants all of his students to succeed! Like any lab, there is a lot of work to be done, so do expect a good chunk of time every week to be used up for this class. I HIGHLY recommend you go to his office hours, they were good! Also, I recommend making sure your work is in the right format, too, as he will give you a 0 if not.

Dr. Parra does a great job at helping you to succeed in pchem! He provides sharpening skills for each exam that prepare you for each exam in his class. He is incredibly kind, and it is obvious he has a passion for this class! It's scary and a difficult course to take, but Dr. Parra is there to help!