He's the man :) and super nice and funny guy. I recommend to take his class. He's a new professor but he does know how to teach. English isn't a matter to him, speaking perfectly.

His class is for smart students, otherwise, u won't catch up what he's talking about.

I like him-that said, I still struggled with his tests and with the class. He has some serious difficulties with planning; we ended up weeks behind. On the other hand, the harshness of the tests were offset by a generous curve, and the inter-departmental final destroyed the other classes but we were fine.

solid teacher not amazing but solid very helpful if u ask him question was always late and we fell behind schedule test are average overall just a class that teach the material if u know get a good grade

He's a very cool guy. Not the greatest teacher. He almost followed the book word for word. We fell behind so we had to rush a lot. The final was very difficult. The concepts are hard to grasp. He's very mechanical

Cai is just too funny, he's smiley and talks way too fast but he tries to joke around and have everyone enjoy the class. Attendance isn't mandatory but he highly recommends it, esp if you're gonna take such a hard class you wanna learn it. He's extremely understanding and even gave us a take-home exam. Choose him over Zara any day.

Funny, nice guy. Tests were difficult but he def. is willing to help you succeed. Would take him again, before moving on to the next topic he always makes sure that everyone is following along.

I thought he was a great math teacher. There is alot of things you need to know for calc I but he is willing to help you. I don't think the tests were that hard, if you study his lectures you will do well on the tests. He grades you based on the method, not on the answers so that's not too bad. I thought the final exam was hard though.

Professor Cai is a GREAT professor. His tests are hard but fair. If you study the examples given, and just the examples given, you will pass with a C or better. He will help as much as needed, just don't try to email him.

tough professor, goes through material quickly but is also very thorough and and happy to help if you don't understand something, generous when it comes to grading on very hard exams, and he's kinda cute

always answer questions, nice guy, will give partial credit on tests, no attendance taken, theres homework but he always gives 10/10 on it, (3) tests are easy if you study his class examples and do your hw, the final was really hard compared to the tests glad i p/f it :)

Too EASY! You can study by yourself and still get an A, I recommend him for calc 1 and 2 any day! MATH MAJOR from my experience and when you get an 85 on any exam its considered as a nice solid A and I gotten 3 100s in all 3 of his exams and did all his homework and i could of just ended up with a nice Solid B without taking his final exam.

He is a good professor if you want to learn higher level calculus. There is a significant amount of homework that counts towards the grade. His tests are easier than exams and he is a generous grader. Those who are having difficulty should take advantage of his office hour.

Took Calc 2 over the summer with him. Pacing was crazy fast but he had to cram a lot of material in a short time span. Knowledgeable, always willing to answer questions and had a great sense of humor, especially for a math prof. Forgiving grader as well. 85 is an A and he curves if test scores are low

Greatest class ever. If you want an easy A, this is the guy.Remember to do your homework problem. He is freaking hilarious and a nice person in general.

good teacher.you will learn a lot from this professor.just do the homework no need to right or wrong, you will get A. easy A. study for exam is just from the example in class.

He explains the material clearly, but due to the amount of material covered he will go at a faster pace than people are used to. Prof Cai is really funny and a great guy. He grades based on how much calculus you understand and gives generous amounts of partial credit. No attendance taken because it is a tough class, but I enjoyed it.

Cai is a great professor. He is clearly super smart, as well as funny and willing to help his students. He is one of the best professors I've had at UMB. Those who say he's "hard to understand" need to get a grip! His english is flawless and he has an expansive vocabulary. Go to class, take good notes, do the homework and you'll do well.

Although he has an accent, his lectures are understandable if you pay attention. To receive an A from his class, all you have to do is do the practice problems A LOT from the textbook. It really helps you on the exams and some of the problems are from the textbook.

His class was honestly what made me like Math. I always had horrible teachers in high school and middle school but the way that he taught just made sense. He is obviously extremely knowledgeable and has a very clear way of describing the problems. He is also fair when it comes to grading exams, which is pretty much the best thing you can ask for!!!

Calculus II is a touch subject if you are not interested in Math. Cai is an amazing guy and makes the class tolerable. If you go to him for help he is extremely easy to talk to and will help you out. He does not want to see his students do poorly. I had him for Calc I and Calc II and although he's not the easiest he is one of my favorite professors

If you can't take Calc I with Cai, don't take Calc 1 here. He does a great job of walking you through the topics and making sure you're not just memorizing steps, but actually understanding the reasons behind the procedures. He's a very fair grader - he won't hand you points for free, but he will curve exam scores if warranted.

Professor Cai is hands down THE BEST MATH PROFESSOR I HAVE EVER HAD. He really wants you to understand the material and is very reasonable with grading the tests. This is a teacher that WANTS you to succeed not fail you. I STRONGLY encourage people to take Cai for a Calc 1 professor

Cai gets it all across to you clearly and concisely. Occasionally he goes on rants about Russell Crow and the historical bibliographies of mathematicians but gets all of the material properly taught. I attribute a lot of my success in higher math courses to this professor's ability to instruct.

Professor Cai is amazing !!! Very smart guy. Calculus is one of the toughest subjects out there and it's not easy for someone who isn't good in math. His exams are not tough if you study and practice his NOTES. Go to every class and take good notes because his exams are completey based on them. VERY VERY FAIR GRADER. But final is RIDICULOUSLY HARD.

I don' t know how to say it any differently from the other people who have commented. HE'S GREAT. If you want, sit in his class on your free time if you plan to take higher math, and then you will understand what he is teaching even if you don't fully know it yet. Dosent mean he can make calc easy because the course in general is hard.

I had him for 12oclock class and he was always late because he had to go grab lunch. Couple topics we skipped because we missed so many days from the blizzards. Otherwise, hes a great prof. And Im taking him for 260 next semester. Curves low test grades, fair grader, Final exam was TOUGH but i aced the course with an A.

Professor Cai is the man! Calculus is my worst subject but Professor Cai made it interesting and bearable. It was a lot of work but I wound up with a B. Cai is incredibly nice, funny and very helpful. He's approachable and very understanding. His lectures are fantastic. If you need to take Calculus (or Linear Algebra), take it with Cai!

Prof Cai is the best Math professor you could have here. He gives clear background of the topic and deeply explains it. Gives a lot of examples and homeworks. If you get his examples well and are comfortable with the HW you should not get anything less than an A-.

Great professor but kind of tough. Maybe because I was a junior in hs, and didn't have a good foundation on pre-calc. Now that I'm in college, calc is so much easier because of Prof. Cai!

He is a nice, funny, quirky, and helpful teacher who obviously wants you to do well. However, when he taught linear algebra, he wasn't always the greatest at expressing the material in understandable layman's terms: his use of language could be too deeply contextual at times. However, I could definitely see him as being a good Calculus teacher.

Made me love calc when I thought I was going to hate it. The subject is naturally hard for me but I went to all the classes, took notes, and got an A! Don't even need the book. He is fair with his exams and only tests on what he teaches, making him one of the best professors I have had at UMB! Heard horror stories from other calc prof.. Take CAI!!!

Good professor, stepbystep, but the course itself is very very hard. As long as you study his notes, you should be ok........

3 exams and a final. MUST COME TO CLASS EVERYDAY not mandatory but missing one class will result in falling behind and not knowing what is on the exams. It's pretty clear cut. hes a fair grader its not an easy A, u need to put in work. offers scale exam if the average is low. has student ta grade the exams so there were alot of mistakes.

Cai is a very good, respectful, amusing, and asset to us at UMass. He teaches math quite well in simple terms with his real life examples given in class. No slides, notes are drawn on the board each class, avoid skipping by all means. Currently in the 6week summer course, super fast speed, and tons of hw. 3 exams60%, Final 30% and hw 10% STUDY

Cai is the man! I love this guy with all my college loans! He sinplifies the toughest subject Calculus taking him for summer course Math 140, don't try to cram everything in just before the exam, this isn't an english 101 class, study and do the hw and take notes. Don't miss classes either. Not only is he funny he is very respectful and super fair.

Professor Cai is awesome. He's funny, entertaining, and cares a lot about the subject. Some advice: Don't skip the class. Skip one, and you'll be lost. Study every night, do the homework, and don't be afraid to get some help if you need it. I took the summer class and got a D-. It was tough, really tough. Follow this advice and you'll do fine.

His teaching is very clear and understandable. If you want an A, you need to work your butt out because Calc1 is hard and the final exam is very, VERY hard. Good luck!!!

Professor Cai was incredibly fair when it came to grading his Calculus 1 class. The entire class itself is graded on a curve (85% Total Grade is an A), and if the class' test score average was a bit low, he would curve that as well. Be prepared to do work outside of class, not because of Cai, but because it's CALCULUS! Brush up on pre-calc before.

Professor Cai is a great teacher and he is even funny a lot of the times. He makes learning calculus much more bearable. That being said, don't expect to not study and still pass. The material is still challenging, but if you put in the time and effort, you'll see that he is very fair when it comes to grading.

Cai is a good professor. He's a great, funny lecturer and rescales tests if needed. Not an easy class but definitely fair. Make sure you show up to class and get the notes if you miss them because the tests are mainly comprised of problems from the lecture. He has a great review session before the final that prepares you very well. Reccommend.

Definitely take his classes if you can. Calc II is difficult but he's very clear and explains things well. He's also funny and engaging, making it easier to pay attention to the material in class. He goes pretty fast sometimes, but he has no problem taking a few steps back if someone asks him to clarify something. UMB needs more like him!

Prof. Cai is the best math teacher I've ever encountered. His lectures are clear and organized. He is exceptional at explaining complex topics in a simple fashion. That said, you should go to every class, do all the homework, and fully digest EVERY example he gives in class. This course greatly improves my analytical and critical thinking skills.

Professor Cai is awesome! He does teach very fast and sometimes use language that is too technical for beginners, but he is very clear. The class itself is extremely difficult and covers a lot of material rapidly. He is very fair with grading and cares more that you understand the process than getting the correct answers. Highly recommended!

This dude's GREAT- he's pretty chill, never makes you feel stupid, can make 3 different analogies for one idea, good sense of humor, and an overall chill guy. I had him for the switch to online for LinAlg and his online lectures were actually EASIER to follow because he didn't have to erase a bunch of stuff off the board (and also shared his notes)

Hes pretty funny and overall a great guy. I got a C+ in calc 1 and got a A in his calc 2 class. He explains well and will answer all questions. He grades fair and gives a scale if the class needs it. Im taking him again for other classes because he is a good person who cares about his students.

I've taken him 3 times already. I like him a lot. He always shows up 5 minutes late and gives no feedback on homework grading. But he's a funny guy and a good teacher. I learn a lot in his classes. He enjoys when students ask him questions and he always stays after class to talk to students 1-on-1 if you want.

Really solid math professor. He knows his stuff and is passionate about mathematics. He won't just hand you an A but he really does want you to pass and doesn't make the exams too difficult. Definitely study previous homework more than the sample exam problems because they're often not as relevant to the exam material.

Nice guy, pretty funny. He was late a lot, but things are still pretty hectic right now and he was accommodating to the students, so I feel like its fair to extend the same to him. No quizzes and no feedback on the homework, so it's up to you to make sure you're keeping up. Do the homework and review problems and you should be okay for the exams.

calculus 2 is not easy, but he taught it well enough to make it much more tolerable than it should be. However, the class kinda fell apart after towards the end, the final stretch was more than enough to break people left and right...

He's super nice. However, it would be best if you wrote down every example because they will be in your exam.

He's super nice. However, it would be best if you wrote down every example, they will be in your exam.

This man is a gem! He keeps his lectures light-hearted and keeps his students engaged by asking class questions. He always encourages questions, making sure no student is left behind. Make sure you study the practice problems he gives before the exams. You'll do well on the exams if you can do the practice problems.

Great professor, he is a really funny guy and knowledgeable on the topics. You get graded on homework, 1 midterm and 1 final. While that is a little intimidating he has a nice grading curve which saves you. Make sure you understand the review problems before tests then you're fine. Only real complaint is his lack of response to emails.

Took Calc 2 in the summer so it was accelerated. A ton of material fast paced was miserable for Calc 2 but this professor is a super fair grader, funny, and knows the material. He did fly through some things but that is expected with the course in the summer. Overall not a bad experience for a hard subject. Practice and practice you'll be fine.

Professor Cai made a 4-hour long Calc2 summer class not feel like my brain was melting out of my head. He explains the material clearly and will take questions to make sure everyone is on the same page. He makes jokes during his explanations which really helped me stay present in the lecture. His grading was largely based on tests and is forgiving.

Make sure you're keeping up with what he writes in class,he moves fast and assumes you understand unless you speak up. Don't hesitate to raise your hand; when you do ask questions, gives very detailed explanations and helps you understand how and why you get the answer. The textbook is essential for extra practice. 10/10 professor.

this guy is amazing. completely changed my perspective on mathematics. lectures can be boring but this guy is hilarious so his lectures are actually pretty fun. always looked forward to class. DO NOT SKIP or you won't pass. always stayed after to talk to students 1 on 1 which was nice. 10/10 would take him again. emphasis on the DO NOT SKIP CLASS!