Funny as hell

He calls himself Tricky Lui , and he makes fun of his own accent. Amazing.

Not that bad. Just go to class and pay attention. He is helpful. Funny too.

This guy is classic; everyone at WPI should have him once. He is the funniest prof I've had. HW is wicked hard though, and of course, beware of his tricks on exams! Tricky Lui for a reason.

Extemely difficult class, but despite what others may say, Tricky Lui really did do a very large amount of work to ensure that people passed. Interesting lecturer at least. He was just the messenger of one of the hardest messages ever.

OMG how can you complain...chance for a clean slate with the last test (anyone remember alternative grading scheme?). And 4 cheat sheets for it! And give him some credit...he worked his @ss off.

I like this professor because he's hard. Most of the students who put bad ratings are slackers and the type who would rather party than study. I had no problem making an A in this class. It's nice to see a professor who isn't afraid of failing students!

Lui was an awesome teacher. He told you what he was gonna teach, then he taught it while being perfectly clear with everything. in addition to good teaching, he made the class a lot of fun to go to joking around and whatnot.

Took MA2051 in the fall of 04. Probably the best teacher in the school. Go to him for extra help and he'll make everything clear. No one has any right to complain unless they're retarded...in which case they'd never understand the material

I thought Lui was an awesome teacher. He knew and could communicate well the course material, and his joking around was great. Alot of people seem to have trouble with him though... I think as long as you do the HW, you should be fine in this course.

I think that he's a good teacher. You just have to put in your share of the work, in other words study and do your homework.

He's an amazing teacher, he gets the point accross and will answer any question you have for him in a very clear manner. He's really funny and makes his class a fun time. I didn't find anything "tricky" about him and would love to have him agai

Everybody had me really scared about Lui...but he is an awesome teacher! I found him very easy to understand and learn from. If you do your homework/ask for help when you need it (which he is more than willing to give), you'll do fine.

Awesome professor. Explained everything extremely well in plain English (albeit with accent). Has a sense of humor, and enjoys cracking corny jokes. He immensely enjoyed teaching our class.

he's funny.

He's really funny, kept me awake :)

He made some mistakes during lecture, but overall the class was pretty easy, and my god, he is so funny.

Professor Lui is a good teacher and was very willing to help; and doing things like setting up review sessions.

He doesn't deserve his bad rep. His "tricky" days are over and he is an excellent teacher. I learned a lot from him last year in Calc 3. The tests were pretty easy and followed homework problems to the T.

Prof. Lui is amazing and hilarious. To this point, I have not noted any exceptionally "tricky" behavior on his part. It's true he is sometimes difficult to understand, but he's happy to clarify things if necessary. The material is challenging, but bearable. Prof. Lui is a very funny man; every class is a blast.

For Mathematical Modeling, Professor Lui was fantastic. I can't guarantee the same for introductory calc classes, but with a class he loved and related to his research, Lui did a great job in teaching the material; more importantly, he taught us how to think like applied mathematicians.

Amazing professor. I'll admit I was a bit leery of him at first due to his nickname, but his sense of humor and his teaching ability brought me around. Exams were difficult, but they were fair. I found him to be always willing to help, and always willing to answer questions. Put in your fair share of work, and you'll do well in this course.

Very good teacher. He is not "tricky".

Great Professor, in class he is engaging and often hilarious. Tests were all open book open calculator; they could be challenging at times, but always seemed fair.

Lui is the man. He genuinely wants you to know the material and pass. He is at times hard to understand, and his explanations are usually bizarre, but he is considerate and caring. Give him a chance.

Roger is awesome! He makes every class interesting, and always likes to joke around. He also is a great professor. He not only takes the time to explain things in class whenever someone needed help, but he also would arrange times to meet outside of class to make sure every student did well. His tests were a bit tricky but otherwise he is great

His "tricky" days are over! When the class did so-so on the first test, he took over conferences from the TA, simplified the second test to questions nearly directly from the homework, and did almost a week of review for it. He's a great teacher, genuinely wants us to pass, and has a great sense of humor. Basically he's the man.

The class itself was wicked hard, but Lui tried to keep it interesting. He's very random, but fun. All in all, I would recommend everyone take a class with him at least once.

really funny will keep you awake but he likes to make his class really hard and gives tons of HW. good at office hours

Not the same guy other people have commented. He cares about students, is helpful, clear, and tests are very do-able. Very funny too!

Anyone who has the opportunity to take a math class with Rodger Lui should! He is the best teacher, he cares about the students, he is hillarious, and he actually TEACHES you. Great experience in Calc II. Grading is fair, and he prepares you for the final. Lui is the man!

Roger is a good prof. pretty funny sometimes. good explanation of material. very involved in helping students do well. it your fault if you dont pass. pretty much begs kids to go to office hours

Great teacher. He might go a little fast, but it is WPI. He likes to make jokes during class (sometimes at students expense), which makes for an enjoyable lecture. Just attend class if he knows you. He know when you don't, and calls you out for it. And go to conference to pick up papers, or he'll give 0's at the end of the term for them.

FANTASTIC lecturer. Keeping a class laughing while teaching differential equations is a feat only Lui can pull off. Tests and homework were reasonable, nothing "Tricky." Only complaint was somewhat questionable grading/curving policies..very harsh on the partial credit and curve.

He will make you laugh. His exams are straight forward, half the test is homework problems. The class did move rather briskly, but do not fall behind in the homework and you'll be fine.

Awesome teacher. He is known for constantly making jokes throughout the lecture. I had him for Ordinary Differential Equations, and he knows how to teach the material. You get to know him well if you go to his office hours, and he also calls on people throughout class to answer a question. I highly recommend him. Great for MA 2051.

He is so excellent

Roger is a great guy who made class enjoyable. He offered help if you needed it and was aware of your performance throughout the course. He is a great professor and I wish I had him for my next calc class because I learned a lot in his course.

Knows everyone's name in class make sure you come. Very funny teacher and explains everything well. Homework and Webwork are easy and he will always go over questions. Tests are only 6 questions and very similar to practice tests he posts online.

Had for Calc II; knows everyone in the class, amazing teaching style, genuinely cares about everyone in the class. If you can have him, do

Roger is the man!!! One of the best professor's I've ever had, hopefully I'll be having him again for Diff Eq. I thought he explained stuff well, and makes it fun so you remember. Will know your name by the first day. Tests are very fair, though the Final was kind of hard. Take a class with him!!

Had him for Calc II and Diff Eqs. He is a great man and a great lecturer. Diff Eqs was a lot of work, but he explains the material really well and is always willing to help students. I would highly recommend Roger.

Pretty meh. Wasn't really interesting, and he made quite a few mistakes during lectures. Overall progress is slow, and although he writes down quite a few stuff not all are useful. Those few days when Farr substituted him were the highlight. Exams weren't hard, he gave out quite a lot of homework, somewhat helpful in answering questions

He is fairly a good instructor and exams are easy.

He got very excited when presenting proofs and was always willing to help students. His tests were based on computation and needed to be done quick. Quizzes were based on proofs and needed a lot of studying. He also loves Bitcoin, you should ask him about it.

He is actually a very inspiration teacher, this course lead me in the world of modeling, thanks a lot. But I have a free rider teammate, so I did almost everything in our project, we got the same grades finally.....

Lui is a hilarious professor. He will totally call you out for not knowing something, but he is very nice about it and funny. He really keeps your interest with all of the jokes he tells, but also gets the point across. People either seem to love him or hate him. I definitely love him. You just can't take the class too seriously (study though).

Rog was hilarious! Very kind professor, sometimes calls students out for no reason at all, but is all in good fun. Wants you to ask questions and go to office hours. If you do , he will remember you for the rest of the term. Very enthusiastic and into what he is doing. Homework is manageable, and tests are pretty easy if you STUDY (it's a thing!).

Little hard to understand what he's saying, but he works hard to make sure you get the material . If you have questions do ask him. Great class layout with conferences. Do go to conferences. Conferences helped refine what lui covered in class.

Roger is a really nice guy and teach things pretty well. He deserves a higher score than only 3 in this website. Participation is extra credit. 2 exams, 4 quizzes, and 5 webwork is all the thing that matter to your grades. You can do very well as long as you finish all the homework he assign. Webwork is super hard but will not be in exam )

Prof Lui is a funny guy during class and off class. His lectures are sometime hard to follow, thus it's strongly recommended to do the optional homework on textbook. Optional homework helps you understand his lecture materials, and it's super helpful on quizzes and exams! Not a hard class but requires works.

Clear lectures, tests were straightforward with no curveballs

Doesn't go into a lot of detail but is very funny and exams made by him are very fair. Questions are basically set up the integral so if you know what you're doing its a easy A on tests if you study. Doesn't throw curve ball questions which is really nice! Common final is the only reason i might not get an A. Really funny though .

What a man and what a cutie. Called me Elvis after on bad hair day. Hilarious man. Once he learns your name you will he called out constantly.

Roger Lui is a straight savage. His lectures are filled with awkwardly placed jokes which lands him a 5/5. The example questions in class are basically your exam. Even if you pay minimal attention in class, you should still pass with an A. If not you should strongly reconsider becoming an engineer. If he learns your name be prepared to be called on

Prof. Lui is a really funny guy - I thoroughly enjoyed all of his lectures. He's good at providing clear explanations during class - you just have to pay attention. If you pay attention in class, work on the homework early, and go to him if you have questions you should be okay. He tends to cover material quickly so make sure to go to class!

Prof. Lui is a great guy, his tests are hard but he is a wonderful teacher and very willing to help out anyone who needs it. I had heard that he was an awful teacher prior to taking his class, but when I actually sat in his classroom as a student I found that he's great, and he LOVES what he does, which is sometimes hard to find.

Hilarious guy. If you pay attention and attend classes, you shouldn't have much of an issue. Does pretty well at getting students to understand the concept (why you are doing something) rather than just memorization. Don't take if you get annoyed easily, but for the majority of people he is a fantastic teacher.

Clearly knows what he's talking about at the same time being chill. His notes are neat and clear, and he posts them after every class. He doesn't berate you for asking questions and answers them clearly. His tests are straight-forward as long as you take notes. He has an accent and on occasion makes dry humor, but you get used to it after a while.

He posts lecture notes in time after every lecture, which is well-organized, so you don't even need to attend a single lecture to do well in this course. Also, he provides one or two practice exams and a couple of past exams before midterm and final, as long as you do those problems well, you will get a high A with ease.

Roger is a great professor here at WPI. He truly cares about his students, and sets you up for the future. Put in the work, go to his office, and you will be fine. I have taken many classes with him, and plan to do more.

The lectures were understandable, the work was a good evaluation of the material taught, and I didn't need the textbook to learn, lectures were enough.

I enjoy this professor a lot because he's very entertaining and knows what he's talking about, however he gives extremely hard problems on tests and I had to do a LOT of work outside the class to keep up. I also discovered that it seems we cover more course material than many other MA 1023 classes, which makes it that much more rigorous.

Professor Lui is the funniest professor I have had at WPI. His sense of humor got me through his class. In terms of teaching, he does sometimes have trouble hearing and understanding the questions of the students. He tries very hard to know everyones names. He also gave us plenty of hints for the tests. He lets you bring a cheat sheet in for tests.

Lui goes a little fast, but he is a generous grader and a pretty nice guy.

What a goof. Always laughing at his own jokes. He taught most of the material quite well with some pacing issues. Sometimes hard to understand him through his accent (especially when hes giggling) but i definitely enjoyed his class. Not a bad choice for MA1023

He is a nice guy, but the class lacked structure. His lectures were hard to learn from, the conference with the PLA is how I learned. Projects were pretty hard, but he scales the grade so no one can fail. The final exam was only on one subject matter and very easy.

The class was honestly fine. Just pay attention to the announcements/emails and go to the extra lectures and conferences.

Funny guy. Lectures are good, although he makes a lot of mistakes. Very nice guy and responds to emails fast. Fair grading and good explanations. Good professor.