He is very nice, approachable, and helpful. He cares about his students. I enjoyed his class and got an 'A'.

Look he's a really good teacher and yes u can understand his accent cuz its not that bad; however, his tests are difficult especially if u really dont get whats going on. Everything else is easy and he explains calculus fairly well.

teaches very good. exams r hard but helpful

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He does a very good job explaining the material. I rarely even had to read the explanations in the book. His tests were difficult but he went over every thing before hand. He even had a fairly good sense of humor, for a professor. If I were to take Math 1B and 1C at Riverside then id take it with this professor and i recommend him to others.

I don't really agree with all the negative feedback. Took statistics with him and he gave a clear syllabus at the beginning of the semester. He makes a lot of jokes. Fair tests and quizzes. He teaches by the book, so I recommend you read along as he teaches to make your own clarifications. He has an accent (Spanish/Mexican), but it's not too bad.

Mr. Ruiz is a very good stats professor. I was surprized how somewhat easy the material is. He uses the book ALOT, so always bring it to class. He's funny and really nice and helps you out whenever he can. Honestly a very good class.

Mr. Ruiz was alright. He wasn't bad, but he wasn't the best either. He mumbles to himself alot and speaks spanish randomly (numbers and letters mostly) while doing examples on the board. I'd recommend to people whom are independent and can teach themselves if needed. Just show up to turn in homework and a day before the test.

He is really smart but sometimes has a hard way of explaining things. Not a good teacher if you dont like math

Lectures weren't too clear, and if I didn't go to the lab at least once a week, no doubt I couldn't have passes. But he was VERY helpful one on one, and in the lab and was willing to meet in his office anytime.. would go over and over material since i never understood it. Willing to help

I took him for statistics, and he's very helpful. It seems sometimes like he doesn't know what he's talking about but he does. It's an easy class though since he drops one test, one quiz, and one homework assignment.

TAKE HIM! i have failed every math you can imagine in high school and i absolutely HATE math. i was scared to take this class, but this is one of the best classes ive taken. he is SOO nice n funny...grades fair! hes very flexible when it comes to assignments & make-ups. Just study and do homework. most test are multiple choice! TAKE HIM!

Nice and funny. He is a good teacher, but whether or not his style works for you will probably make or break your grade in the class. Make sure to do all of the homework, as tests are pretty hard, but he is not condescending about his math knowledge, nor does he try to trick you with trick problems on the test, like a lot of other math teachers.

Ruiz is a fun professor. He makes class interesting and worth attending. This semester was the first he assigned homework on my math lab and I liked it. I never looked at a book once and still did great. Tests are decent. Just study the night before and youll be fine.

Mr. Ruiz is a great teacher; he knows what he's doing. He's funny too, thats why his class is interesting. He makes the material enjoyable. not an easy class, but he makes it worth it. Tests are OK and you do need to do hw in order to be able to do the test well. He's also willing to help you and for the students to succeed. take him!

He is such a good professor! He goes over all the material you need to get A's on the exam if you fail its your own damn fault!! He's funny too which helps when taking a math course.

He's funny but not a great professor. Does not check the HW so it doesn't matter if the person nxt to u did half of the hw while u did ALL the problems. U and him will have full credit. He doesn't care if you are trying or not. He said it would tell us sections we need to know in the final. At the end he said "everything." He doesn't check e-mails!

He is the best math professor at RCC. His tests are kinda challenging, but he curves them if everyone does bad. Make sure you do your HW to understand it. He is helpfu in class and in his office hours.

He was an alright teacher. Had him for STATS in summer. He checks the homework carefully! And the test were just homework problems.

The best math teacher ever. He is more than willing to help and goes at a good pace. If people dont pass they arent doing the hw and showing up to class. I hope to take him for more courses and HIGHLY reccommend him

Incomprehensible, I had to sit in the 2rd row in order to understand him. Don't take him during summer, he rushes thru lectures but still expects u to know the material perfectly. Hard grader, takes off points for little things. That being said, he's very helpful if you go and ask for help. Doesn't really check hw, just write something down.

I was enrolled in his class for a summer Calculas session. It was very comprehensive and I loved the way he presented the concepts to the class. He gave the students a change to digest new information. I would definitely recommend to other students.

I took him for summer session...you must use the book and do homework(which if you are a college student you should do regardless) to expand on the limited time of summer or winter classes. If you need help he is awesome at answering questions. Tests are challenging but not hard. He is also hilarious!!! Great teacher would definitely recommend.

I took him for Statistics over Winter 2012 and passed. He explains it very well and uses examples. Note cards were allowed for each test! He would get lazy and make tests easy and even had one be a take home. I would really recommend him for stats!

I thought the class was great! Professor Ruiz was funny and very flexible! I loved the class! Math is hard but I felt he did a great joc teaching it!

All i have to say is that this teacher is amazing. i suck at math but honestly he made me understand math, i hope there is other math teachers like him out there.

The class was hybrid and tough yet, the professor gave us a lot of examples and visual cues to make us understand the material better.

He is the best. Because of his excellent explanation, I don't need stud and I could remember everything he taught in the class, and got highest score in every test. He is flexible, helpful, and a real model. He has a great personality. I highly recommend him.

great class cant believe i passed

Mr. Ruiz is a great professor. I absolutely hate math but his stats class wasn't bad at all. He is very funny and tells a lot of stories which makes it less boring. His lessons are also easy to follow but do yourself a favor and sit up front if you really want to learn and to participate. Oh and do the homework. The extra points help when u need em

The thing that is is Ruiz is a great professor. You haters just need to chill out a drink some dos x's. Multivariate calculus was a breeze with him. Even let has have a group quiz once. The thing that is he teaches well and expects you to study. This is multivariate calculus not math 35.

Ruiz is a good professor. He explains topics very well. In fact it gets tedious sometimes when he continues to explain if you already understand the material. Other than that, I have no complaints. I have to agree with the rating from 5/17/14. Considering that the class is Multivariable Calculus, he makes it easy. I recommend him over others.

Ok professor final killed me. I had an A up until the final.

Ruiz is lazy and spends too long on basic problems. You will be behind other classes. He makes it easy to pass, but not a good class to learn the most out of the subject.

Professor Ruiz was great and knew how to explain things very well. Knows material well. He isn't a professor that gets upset about having to repeat things. He has a sense of humor and has an accent but that never got in the way of things. He is always willing to help his students, drops lowest test grade and gives extra credit on most exams.

Great professor, he's funny and knows what he's talking about. Homework almost everyday but it's hardly ever more than 20 problems. The homework is basically the test, make sure to ask questions he loves helping his students. Don't use your phone! that makes him super mad. There's only a few tests, did all the hw and got B's on all the tests

Ruiz is amazing professor, y'all trippen. His homework helps with the tests, he helps when you need it as well as sometimes lets you work in groups. i never understood math until I took him, this is the second time taking his class. Highly recommend taking him.

the concept of statistics is hard but he teaches the lessons as clear as possible. do all the homework and show up to class paying attention and taking notes and you'll be fine. he does have an accent but nothing you can't understand. my favorite math professor thus far!

I never understood math in my life until taking this professor. I know some people were discouraged by his seeming lack of help at times, but that was his point. I never understood math before because I would always expect someone to show me the answers, instead of actually thinking about/assimilating the material. Ready for MAT12!

One of the best Math professors ever!! I was never really good at any type of math but he made it easy for me to understand. Teaching style may be a bit different but it sure is effective. Homework really helps prepare you for the tests! Grade is based off of tests.

His awesome , one of the best prof. I ever had for math. All the work he gives you makes you understand math.

Did not want to take this class with him due to all of the bad reviews. BUT he is not bad AT ALL. He will go off on tangents sometimes but still gets through the material, he is available whenever you need him, and he will offer his help anytime you don't understand something. Has an accent, but can be understood and he JOKINGLY talks in Spanish.

Professor Ruiz was such a sweetheart. I hate math but he explained everything so well and is more than happy to help whenever you need it. With covid he made our switch to online super easy. The only bad thing is that he takes a while to reply to emails but other than that he is really great! You'll love him!

Prof Ruiz was great, I understood everything without ever needing the book except for homework problems. Never had to do independent study which is so rare for math classes. Sometimes his lectures could be a little confusing but so long as you ask questions you're good. He's really friendly and accommodating too.

People are a little too harsh on him, he is old but he is very sweet and respectable. Don't take his class if you prefer lectures involving the big screen (he just uses marker and whiteboard). Overall he has an older style of teaching, but if you just pay attention, show up, and do the homework, his class really wasn't that difficult.

He's honestly the best statistics professor you could ask for. I have tried to take statistics three times before and dropped each time but Mr. Ruiz really makes it hard to fail. He drops your two lowest homework assignments, two lowest quizzes, your lowest exam, and he'll round up from 3% away (67% is a C, 77% is a B, 87% is an A). 10/10 recommend

Relatively decent professor, very understanding, however, the lectures do drag on. Pace was relatively okay, except near the end where 2 final exam problems were not taught at all during the class, most likely due to time. The grading isn't hard, and he drops lowest quizzes & HW assignments, and one test can be stacked onto final in case you do bad