2.7
Quality2.6
Difficulty31%
Would Retake83
Reviews31%
Would Retake
83
Reviews
Rating DistributionOfficial
5
19
4
9
3
15
2
9
1
31
What Students Say
“He is very impolite and disrespectful to his students”
MECH3105 - 1.0 rating“Avoid him at all costs”
MECH3305 - 1.0 ratingClass Info
Online Classes
100%
Attendance Mandatory
69%
Textbook Required
30%
Grade Predictor
Your expected effort level
Predicted Grade
A-
Grade Distribution
Common Tags
Rating Trend
Declining
-1.00 avg changeRatings by Course
1208
5.0
(1)ME1208
4.0
(1)MECH3305002
4.0
(1)MECH1208
3.9
(7)MECH3350
3.9
(7)Difficulty by Course
MECH3350001
4.0
MECH3305002
3.0
MECH3105
2.8
MECH3305
2.8
MECH3350
2.4
Reviews (83)
professor is timid when teaches, can't control a large class, and reads through examples rather than teaches them. became a better class after mid-year changes made such as inclusion of test reviews.
He doesnt explain very well the material. Attendance is mandatory because its part of the grade.Also, he does not give you points back on an assignment that you think was graded incorrectly.
Terrible instructions happen often in college, but rude remarks to "pay attention" in class, arguing with ten other students that he assigned directions that nobody received isn't frequent. Extremely disrespectful and rude professor that constantly forgets to bring class material and comes late. Do NOT take his class if you deserve respect.
Be prepared to listen very close if you end up having to take Rios
I tried really hard everyday not to burst out in the middle of class and tell him how bad of a professor he is. AVOID AT ALL COSTS
Had him for intro to mech, CAD, and Kinematics. Always clear on how to do problems. Had projects in CAD and intro to mech that were annoying at the time but turned out to be nice resume builders (especially for those lacking experience). Shouldn't have many problems with the homework and tests if you pay attention in class.
After having bad experiences with him in the past, Kinematics and Dynamics was quite a surprise. His methods, although seemingly complex at the beginning, are in fact very easy to use and manipulate. He teaches the course very well, is clear about objectives and helpful. A definite recommended professor for this particular course.
After hearing terrible stories about Rios and CAD, I was nervous before this semester. However, now that the semester is over I can honestly say that the course was not bad at all. The objectives are clear, the content presented well and homework/exams not too surprising. A definite positive review for this guy. He did a good job.
After having Rios my freshman year, it was clear that he was not a favorite among students. But after having him this year, I think he is probably the most improved professor I have ever seen in my life. He is a nice guy who will help you out if you ask questions. His tests and homeworks have become way easier and his class is pleasant.
Took him my 1st year, probably the worst professor ever. Took him my junior year, complete turn around. Much more clear and helpful. Easy enough class if you just do the homework.
He's a nice guy, but definitely lacks presence in a classroom setting (not that big of a deal, he just doesn't project). Although the topics covered are not that difficult, the homework problems and in-class examples were a little too simple when compared to the questions that appeared on exams. He's very helpful if you attend office hours.
He''s a really nice guy and an okay professor. He does try to go out of his comfort zone to communicate better with students. As long as you are respectful of him he will treat you the same way.
This class was good. I really like the lab activities. I would definitely recommend this class.
CAD is one of the reasons I am in mechanical engineering. This course is actually really good and seems to prepare you for real design problems. The professor goes out of his comfort zone communicating with students but he is a nice guy once you talk to him.
Awesome class! The lab activities are great and are actually going to be useful for future classes. He does require using Matlab which was difficult for me at first, but he really helped me understand it better during his office hours. Would definitely recommend this class.
The class can be tough in the beginning but gets a lot easier once you start learning how to use the software. I personally liked Solidworks better than CREO but I think it will be useful to know both for job interviews.
Although the course material itself is demanding, Dr. Rios is great at explaining it in a way that is easily understood. If you ever need help, he is there 100%. Lectures are concise and to the point. His examples are both conducive to learning and practical in testing and application. The homework IS hard. However, it is assigned out of the book.
Dr. Rios is very knowledgeable, and he's 110% willing to help you if you need it. The lectures are very well coordinated, and they line up with all the homework and exams perfectly. The homework and activities are designed to be challenging, but they will help you immensely. Attendance is taken every day, so be sure to attend. Read the book too!
As a teacher he was pretty boring. He is very monotone and I think I fell asleep in every single lecture. The group projects will screw your GPA over when you get a bad group so be cautious of this. The grading is also strict and annoying. This class is a joke that you just have to survive, and Rios doesn't do a good ob disproving that.
Awesome class. I like meeting in the studio to work on activities.
I really liked working on the project and getting a 3D printed model of it. The project is time consuming but it is worth it.
Dr. Rios really knows his stuff with Creo. I wish the class covered a little more Solidworks as well.
Great class! I consider myself an expert in CREO now. :)
The tutorials are better than the book. I wish I didn't have to spend money on the book but we did need it for homework. Great lab experience.
I loved that we didn't have to attend lectures all the time. The group activities are fun but make sure you work with someone you like. The professor is really helpful and nice but he won't put up with disrespect.
I think he knows the material at a reasonable level but he gets very offended if you ask a question he does not know the answer too and was kind of rude about it on numerous occasions. He also tends to favorite some over others and you see this come out quiet often. My advice is if you have to take him, just stay out of his way.
He does explain the material well and is very hard to understand. He is very impolite and disrespectful to his students. He is unhelpful in class and I would not take him again.
He was the only Professor that taught the lab MECH 3105 class for CAD. Can't imagine what he would have been like in lecture. TA taught almost every week. If he was there he would handout sheets of paper with our assignments on it and basically say "good luck, Ill be in my office halfway across campus." Avoid taking him if you can.
He's a great professor. He was always willing to help. He doesn't grant extensions on homework but he is fair.
The professor wants to "teach" or read his power points without being interrupted. Topics that were heavy loaded in exams he barely covered during class lecture. Curves students that under perform, but not everyone. WILL NOT TAKE LATE WORK, period. Very discouraging professor with a poor attitude.
He know the material and gives a consistent lecture. The problem is that he is not able to control his emotions and gets angry and even rude at a minor miscommunication. I do not recommend anyone taking his course.
MECH1100 is super reasy. Come to class, get free attendance. Tests come straight from powerpoints, group projects are nice and simple. The class is an intro class so kinda useless--should be free A
This professor thinks hes teaching a PhD course not a Cad class that students take for GPA boost. He made a lot harder than it should be. His exams are a joke. 25 difficult questions. Other professors exam is only 4 questions. Avoid him at all costs. TA is just as bad as him
Nothing good about this class. The professor is arrogant, TA is bad and the lectures dont teach anything. AVOID him.
avoid this teacher at all cost. nearly impossible to pass his exams. Exams are nothing like the notes.
Professor Rios begins the course assuming nobody has any CAD experiences and really spends time teaching the fundamentals of sketching. The assignments corresponded well with the weeks learning but had tough grading criteria. The tests we're often difficult and asked semantic + subjective questions not really integral to being a good CAD designer.
Definition of a 3/5 professor. Neither underrated nor overrated. Explains things well, but always sounds uninterested and does not emphasize what's important. Needlessly authoritative at times. Exams are easy if you learn the material. Is helpful enough in person. Everything is posted online, as you would expect from a CAD class. Hard to not pass.
MECH Lab is kind of a joke. Attendance for the non ICMA days is optional (but for some reason the TA still takes it, even though it doesn't affect your grade???) and there's only 6 ICMAs. The lab is mostly TA dependent, Rios is usually only there for like 20 minutes.
The instruction is decent and the course was not difficult, however the professor doesn't seem interested or engaged in the material he is teaching most of the time. Pro-Tip: you cannot miss any lab- even with proper doctor documentation, I had to miss a lab and he gave me a zero for it and bumped my grade down 3 letters. Watch out.
Professor Rios had zero sympathy in the middle of the pandemic. He is rude and didn't teach anything. The class grade was dependent on 6 modeling assignments. You were only given a 4 hour window to finish the assignment but the class was asynchronous so we should have been given 24 hours.
Rios was one of the best professors I've ever had, lectures are straight-forward in terms of what you'll be expected to know for assignments and exams. Highly structured online course and well spaced out in terms of keeping up with the class. Had 0 experience in CAD and now I feel quite prepared on what to expect. Easy A if you stay up to date.
He didn't teach anything. The class grade was dependent on 6 modeling assignments. You were only given a 4-hour window to finish the assignment, which is impossible for the student new with CAD. Save your time and money.
Has no sympathy for students with extenuating circumstances that cannot show up to class. Despite having to work full time and managing my other classes, I did all of the work assigned, on time. When I let him know that I had not been able to come to class for the past month and do not have a team, he changed my past months grade to a 0.
This is my third class with Professor Rios. He was available for about half of each CAD lab and had an AWESOME TA who was there for the whole lab. Professor Rios had great practice videos online that helped you to develop the skills you learned in the labs and prepare you for the ICMAs (in class modeling assignments). Extra credit was offered.
The homework/project were reasonable. The first exam proved challenging but Professor Rios gave a generous curve. This is my fourth class with him. I find him to be very kind/understanding if you reach out to him with issues. He answers emails quickly and is helpful. I would not hesitate to take him for another class.
He was kind and understanding yet his lecture skills are lackluster. There is not much content to go through within Mech1100 yet he made it feel like a drag. Quite monotone and unengaging. The class itself was quite easy and not difficult other than a weekly quiz that was most often a guessing game. All in All, he is unengaging yet kind.
The 1 star reviews are all true. Wants you to fail so you take his class again as he is the only professor for this course.Does not enjoy teaching at all which is why he uses the same recordings. Hes slow in communication and gets mad at you for meeting him in person. Also takes pictures of students behind their backs in the lookout for "cheating".
This class covers a broad range of drafting and design that is important to learn for an engineering student. The grading for the class is well separated by many assignments, meaning no single assignment will make or break you. However, the grading is very harsh. Quadruple check ALL of you assignments before submitting, otherwise you will lose pts.
Attendance is not required unless there is an ICMA (in-class modeling assignment). In total, there are 6 ICMA's. Some will build off of the previously take ICMA's. I would recommend taking this class with MECH 3105, as that class covers everything you'll need to know for this lab. 4 overall grade pts offered for submitting class survey.
The class is based off of 6 In Class Modeling Assignments(ICMA). Each ICMA will be over the following topics: Sketches, 2D Modeling, Assemblies, Engineering Drawings, Tolerances, and Advanced Modeling(Sweeps and Blends). Make sure to read the rubric carefully because a small error can result in losing a lot of points.
This class is an easy A if it weren't for Rios's horrible grading. Literally half the class got a 0 on an assignment since the file wouldn't load properly on his end. The class is composed of assignments, quizzes, tests, and a group project. Make sure to read the instructions carefully because a small error can result in high deduction of points.
Rios is probably the most bland lecturer at UTD. He has absolutely NO sympathy or care for his students. He does not enjoy teaching, and acts like he doesn't want to be there. His assignments are worth about 2 to 4 points each, and you loose 10 points for each minute error, so read his assignments carefully. He does not respond in a timely manner.
He's a solid professor. He gives great lectures and helps you understand concepts on a deeper level. He has fair grading criteria where the credit offered matches the time it takes to complete the assignment. However, he will sometimes take many points off for minor things, and his assignment instructions can be unclear at times.
Doesn't answer emails in a timely manner. Doesn't care about students. Doesn't like teaching. Has no passion. Most boring lectures at UTD. Do not take Rios for CAD if you can avoid him.
I had surgery for a tumor and he didn't grant me an extension on a major project.
The lab sessions are borderline useless. The TA moves far too fast to keep up with after making a mistake on your end. The grading is fair, but the ICMAs can be difficult, even with hours of preparation. If you want to do well in the course, you MUST teach yourself outside of lab sessions. The class is doable but not without effort.
CAD lab isn't a difficult class, it's honestly a bit of a joke. However, the lab sessions are virtually useless, so you'll need to teach yourself if you're new to CAD. Grading is solely off 6 ICMAs, which aren't difficult, but it's worth doing the practice beforehand to be safe. There was a 3 percent curve for filling in the class eval though.
Class and content is not difficult but the logistics behind the course are extremely cringe. Activities are short but can be difficult to solve without attending lecture. Lectures are not extremely helpful, but you cannot pass the class without attending them. The 2nd exam was made to trap students, and little preparation was given prior.
After taking two classes with Dr. Rios, my expectations were low, but his K+D class was great. The weekly homeworks were a pain because we only had 3 days for each one, but they were short. The first exam was easy (18 people got 100!) but the course ramped a lot after it. Project wasn't too bad, and there were EC opportunities + 4% for course eval.
For Rios' CAD lab, some of the non-ICMA labs are helpful but most of them aren't. The lab material is confusing though. I believe the TAs grade the ICMAs, as I got graded leniently and fairly. Study for the ICMAs as if they were quizzes/exams and learn CREO from lectures in the online course and Youtube. Ask the TAs for help during ICMAs too.
Class is based on 6 ICMA (in class modeling assignments) in CREO. Fairly easy, not too hard, and very doable, make sure to fulfill criteria (TA grades). Those who had trouble were lazy and never did their part of practicing and learning, made me wonder how they got so far. Labs were ok but useless. More impressive not getting A than getting one.
Class was a breeze, TA graded most things and rest were autograded (quizzes and exams). There is a group project, so make sure to pick competent teammates because I did not and my grade suffered. Teacher was hands off considering it was online, but his criteria and wording for assignments and projects can be contradictory and confusing sometimes.
Professor Rios's class was led awfully, Rios himself was unclear on guidelines, graded strictly, and had personal vendettas against students due to reports made against him. Acted very shady all semester and clearly towards the end of the semester stopped caring how well he taught and only cared that he finished what HE needed to.
No one I know would disagree that Rios is one of the worst professors in the UTD Mech department. The class material is not hard but Rios is practically not present when it comes to teaching and is spiteful of any serious questions. CAD class with him is fine as long as you keep your interaction with him to a minimum.
Rios is very much not there when it comes to actually teaching his classes. His assignments are worded terribly and he often contradicts himself whenever you ask him a question. He doesn't seem to know he is supposed to help students. He is easily one of the laziest professors at UTD
Avoid taking Rios if you can. He does not care about actually teaching and makes the TA's do everything. You have to learn everything on your own and he will frivolously take points off your assignment because you didn't do it exactly the way he wanted you too even if he never tells you how to do it. Otherwise, the class is easy.
Dr. Rios by far has been the WORST professor i have ever taken. No lenience for late assignments, ICMA's are graded harshly, he is not caring when it comes to understanding students. there are genuinely no pros when describing Rios, take any other professor if possible. class is easy otherwise
Genuinely the worst Mech professor at the school. grades far too harshly and obviously does not care if students actually learn. His grading criteria are never clear and when you try and bring it up he takes it as an attack against him like you just kicked his dog. Avoid at all cost.
The whole class being graded based on 6 class sessions throughout the semester is very stressful. The I understand lecture/tutorials are being done in between, but I swear I pay attention and then when it comes to the IMCA it is very hard. Perhaps I just really suck at Creo.
Professor just doesn't care about teaching. The class was pretty easy, however if you dare ask him a question, he takes personal offense and doesn't bother helping students out. He seems to just be there because he has to.
Honestly, this guy needs to retire. He does not enjoy his classes His assignments can require efficiency that is not of a CREO beginner His group project is really just a terrible project His grading is the worst He is very stuck up He seemingly just doesn't not want to be here even more so than his students I pray that Rios gets better.
Dr. Rios makes one of the easiest classes in the MECH pathway feel impossible. His criteria for Modeling Assignments is unclear, and takes off way too many points for mistakes. I as well as others have received zeroes for small mistakes that don't affect anything. There are only 6 assignments as well. Super easy content, unnecessarily harsh prof.
Some professors/graders try and give you as many points as they can. Rios tries to deduct as many points as he can from your assignments.
Dr. Rios is straight forward and easy to understand. MECH 1100 is easy by design. The people who dislike Rios are the ones who are struggling in this class; if you can understand the material, Rios will be a great professor. He does get annoyed at people who don't watch the lectures or understand the material, but that's honestly understandable.
If you make one mistake on any assignment he gives, be prepared to get 1/4 of your points taken off, regardless how small the mistake was. Takes points off every little thing he can find even if it's not on the rubric and will not respond to you when you ask for a grade appeal. Extremely condescending and passive aggressive when asked for clarity
Rios is the epitome of a person who got bullied in high school and is now taking it out on his students. If you ask for clarification, he is condescending and doesn't even answer. Never replies to emails about grade appeals and when he does he never gives points back. Truly is a petty professor and only curves people based on his mood.
Oziel Rios is straightforward and very helpful. If you have a question, he always gets back to you and makes sure you truly understand the material. He explains everything clearly and takes the time to help you learn.
Professor Rios uses scare tactics and holds grudges as mentioned in many other reviews on here. Ignore the other reviews that are good about him , he makes everything more complex than it has to be and takes points off frequently with little to no explanation as if every point deducted is a dollar added to his check. Avoid if possible :)
Avoid at all costs. I'm fairly certain all the positive review on here were written by him as they all read pretty much the same. He will make your time in his class miserable and enjoy it at the same time. He holds grudges against students who criticize him and is the most egotistical professor at UTD.
pushed my disabled grandmother off her wheelchair and into a ditch and then said catch me if you can and ran away with her wheelchair
I never wore a seatbelt driving to school because I wanted to die before I reached his class.
6 Modeling Assignments make up entirety of grade. Watch lecture videos to be ready. Assignments are like quizzes but on the program. Gives you a model and tells you to recreate it on the program. Strict guidelines/criteria. Follow them and you'll pass.
Very strict but follow his guidelines and criteria and you'll pass.
Class Info
Online Classes
100%
Attendance Mandatory
69%
Textbook Required
30%
Grade Predictor
Your expected effort level
Predicted Grade
A-
Grade Distribution
Common Tags
Rating Trend
Declining
-1.00 avg changeRatings by Course
1208
5.0
(1)ME1208
4.0
(1)MECH3305002
4.0
(1)MECH1208
3.9
(7)MECH3350
3.9
(7)Difficulty by Course
MECH3350001
4.0
MECH3305002
3.0
MECH3105
2.8
MECH3305
2.8
MECH3350
2.4