A smart teacher.

this guy is smart and explains concepts fairly well... also very patient with students

His exam is too easy. He should make his exam much harder.

He has an accent, but he can still get the ideas through. He makes his exams harder as you go along. Be prepared for the final.

good prof~! his first midterm was easy~!! but second midterm was insanely hard :) but if you study for the course you can do well.

very smart and patient. although the exams are trivial and bad for good students. very sympathetic and nice.

Very quick. Good class if you can keep up with what he's talking about.

easy but long exams

Not very gramatically correct.

Good teacher, made some mistakes but that happens. However he does have a slight language barrier which isn't his fault.

good prof, explain things clear, although sometimes made mistakes, which most math prof do,too.the exams are understandable and related to the note he gave us. If you attend every lecture, you will be fine.

a very nice guy but not a good prof. His exams are too easy ,the average is too high &one mistake makes a huge difference. should make exams more challenging so that the distribution will be equal, not skewed to the right. not ideal for smart students.

Ppl give Choi a bad review b/c they got a bad mark for the 2nd Midterm. In 1st midterm, more than 1/3 of ppl got 90+%!! Final exam was fair and quite easy. Overall, he is a good prof, and you can easily great marks.

He is extrememly patient and eager to help-and on top of that, as long as you know what you are doing, you are garanteed a great mark! This course with Dr.Choi is a recommended course.

He's a great prof for an intro calc course! He shows great concern for all of his students and he is ALWAYS willing to help out. His exams are fair and easy to get good marks on; though they can be quite long. You can't go wrong with this guy!

He gives alot of hints for exams. He answers every questions u ask him. GOOD prof.

he's quite easy

He is really nice and friendly. Always help students with problems. But he needs to prepare more for the class because sometimes it's not clear what he is saying.

A very nice prof, always there to help students. Gives many hints before exam.

an easy and excellent teacher...very helpful...exams are fairly easy...overall, a recommended course

Very good prof always there to help answer every questions you asked explain clear until you understand

Dr. Choi has definitely improved his teaching style over the semesters. He also is incredibly helpful and his exams are straight forward.

If I have chance to take math again, I will choose to learn with Dr Choi. I miss the chance to take Math 339 and 320 with him. Although my grade was not very great, I still learn a lot. He explains very clear.

Midterm too easy, I lost my interest in the course. HW are straight from the text, again too easy. What it means is the final is the deciding factor. Bad! Everything else about this prof is good. Oh, please turn students down when they come for advising during 322 office hours.

Very friendly professor. Math is hard, but I never feel helpless in his class. Good prepare lecture and review section be4 exams. Math dep. should give him a bigger office because too many students go to his OH. I wish he will teach some 400 level course.

Wonderful prof. Kept things straight forward and never asked anything unreasonable. Midterm was extremely easy and final wasn't too difficult. Take a class with him if you want to really understand the material and get a good grade.

He did everything right, Math 157 students. You never make mistakes? Explain material well and he wants us to know the material instead of giving a hard time to us. I wish to take his class again.

Very clear in his lectures, and fairly easy assignments. The quizzes are not hard if you study for them. People complain about his mistakes, but hey he's only human! They would probably learn more if they didn't spend so much time trying to find flaws in his work. The only down side is the thick accent.

Kk choi is a really good easy math teacher. It's very possible to get a very high mark in this class. He teaches things not to trick but to teach them in an easy way. It's sad that so many students make fun of him but he is so easy going.

He has very good notes and lots of examples, he is very fair on his quizzes and understands when you can't get an assignment done on time. Very nice guy, easy to understand if you pay attention. A little too patient, takes too much from his class.

His class is extremely easy! He has a bit of an accent, but his writing is incredibely neat, so it makes everything ok. People who can't understand him are just uncultured and need to start talking to people from different nationalities. The quizzes and final are straight from the HW. He cut out almost half of the course content for the final!

This class is TOO easy and thus not fair to those who study. Final exam Qs ALL from previous hw, Quiz Qs ALL from textbook example. His accent is acceptable, to those who lived in east van for years, which we used to hear similar accent everyday. So disappointed at students DONT study at ALL but LAUGH at him, so much noise that others cant listen.

This prof is probably the easiest prof u'll get in university. For quizes just read examples from the text. Has a bad accent, make mistakes, but dont even need to goto his class, just learn from the text book. Do the homework yourself, goto the quizes and finals, and you'll get an A.

hard course content, that he simplifies pretty well. Maybe a struggle at first, but as long as you use the textbook everthing is great

Easiest math prof EVER..sexy and fair. Quizzes and final questions were basically straight out of the textbook. No trick questions and extends hwk due dates when students tell him. Easy course = Easy A. Cheers!

easiest prof I've had in university! very recommended! for mt, just study inclass examples and u will be fine, like he promises, he'll only test on what u have seen before. seriously, ppl who complain that he is hard have minimal effort in trying

Dr. Choi is really helpful! People who laugh at him in class are immature and just looking for attention while distracting everyone else. Mildly hard course content but he made it really easy to learn. Doesn't give trick questions and is very responsive to any mistakes or concerns. Definately recommend taking his courses!

This prof makes a lot of mistakes. His examples are not unique, taken straight out of textbook. Point? We can go look at it ourselves! He tries to teach too much material, since not all of it is tested anyways. Besides, my opinion: the math 12 stuff he taught in the beginning was useless. Otherwise, the course itself really is not that difficult.

Nice prof, with fair marking. Suggest taking a class with him!

Nice prof, some minor errors in lecture notes, but corrects most of them. Lecture notes taken from txt, hw are easy marks, quizes aren't too hard, & final is fairly ok. However, there were too many A's in the class, so he had to adjust the grading scheme (many ppl's grades were lowered by 2 letter grades ).

Oh KK Choi, with his argyle sweaters and horijontal lemets. Love this man. Incredibly easy class, and lots of help provided by the calculus workshop if needed.

easiest math prof EVER! clear notes + very helpful

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He is probably the eziest calculus prof in SFU. The best ever!!

Awesome prof! anyone who knows jack **** about math.. this is the class u should be in to get a decent mark

He is great, highly recommend him.

Nice guy! Very clear and gives a lot of hints for exams. Best prof in SFU mathmatical department!

Dr. Choi writes and teaches at sonic speed, yet with crystal clarity. He explains abstract notions (and everything else) in very accessible terms. Very helpful, nice, and available, too. He's a great teacher, and one of the best profs at S.F.U., without question.

He is an awesome teacher! Even if people keep asking stupid questions, he answers all of them calmly. Make sure you do your homework as it's easily testable.

His experience with teaching real analysis truly shines and his comments are very insightful. The material is very difficult, and you'll have to suffer through topology at the beginning, but you'll get to nice and useful results at the end of the course. Know your definitions and homework solutions well for tests.

the lectures are vivid with examples... he is quite good in teaching... I believe that his marking is quite fair... but worse thing is we have a stupid TA.. marking heavily on our assignments and the midterms as well. even though you wrote a lot.. you would get 0/5 (this equals to do nothing) TA's are unclear and the hints do not help at all.

nice prof,organized notes,you dont hv to flip over ur textbk once u hv attended to his class and the test paper is easier then the other class,for my class, our class average is 22/30,thats pretty nice isnt it

Very easy exams, notes are helpful, exams similar to book examples and lectures' examples

Both midterms were pretty easy and fair, but the final was very hard. He also gave many hints for the final, but didn't stick to what he said, which screwed over quite a few people. Study EVERYTHING, and make sure you do all of the homework questions in the textbook and understand them thoroughly.

The first half of the class was quite boring and the teacher seemed unprepared for the lectures, making mistakes and forgetting how to do the problems. The second half of the class was actual complex analysis where we looked at interesting things. The midterm and final were difficult but the marking was light.

Notes are clear, mostly from textbook but explained thoroughly. Gives a lot of hints about the midterms. Go to review session! Long final but just have to understand all of his examples from his notes and the written assignments.

He is probably the easiest prof out of all the others for this class. However, I still found the class difficult because I had no previous calculus background. Attend the workshops and get help as soon as you don't understand something, because it's really easy to fall behind.

Gives lots of hints for the midterms and there are never trick questions, if you know your stuff it's an easy A. A little hard to understand at times but if you write down the notes in class and just read them later its all good!

I would say Dr. Choi made my life easier in a 400 level course since assignments are based on completion mark. What he said really warmed my heart: assignments should not be graded accordance to right or wrong but trying and working on it... this makes me actually spend time reading other textbook and learning the definitions without pressure.

Apart from his accent he is very helpful. First midterm is good.. Second midterm is good too but not enough time to finish. The final was pretty hard though. But then again that was for my year. All in all just study because he is not ridiculously difficult.

If u do the additional questions given on the assignment sheet; its a guaranteed A. Everyone told me Macm 201 is very hard. but with Stephen Choi; its a piece of cake; just go to class; he makes things simpler; some mistakes during the lecture but over all; he's really helpful and easy

well-organized and fair. recommended.

His exams are very fair if you did the assignments in the textbook and know your stuff. If I had to take another math course, definitely would want to take it with him!

It's difficult to understand him but you get use to it. He basically teaches straight from the text so many don't go to lecture. I did attend lecture though since I don't like studying from the text, and his MT and final only test you on what he taught in class so if you don't go to class and just study text, you may end up studying for too much.

Has an accent, but follows the txt closely, so if you don't understand, you can review @ home. TA marks the HW extremely tough, so it's easy to lose a lot of marks over small mistakes. MTs & Finals are fair but too long, needs good understanding & perfect calculations 1st time as there's no time to go over it again.

This man saved my life. The content was tough, but he makes it infinitely easier to understand. Nice guy in general.

People always criticize about his English skill, but it's not THAT bad that you can't understand him at all. Lectures are important if you want to ace the exams, the examples are somewhat helpful. If you go to him for help directly, he'll go over the question step by step patiently. Very nice guy, just that exams were bit harder than I thought.

Despite his heavy accent, Dr. Choi is a patient and resourceful professor. He is always willing to help so if you are ever stuck, go to his TA hours. The exams are extremely fair. If you have a hard time with his accent, make sure to sit in the front of lecture!

Dr. Choi was hard to understand at times but if you ask him he will help you. Midterms were fair but the final was a bit difficult.

Enjoyable prof. Do the practice questions, homework, instructor questions. Time yourself to work fast cause for a final out of 100 marks, there's no time to waste.

Go to class, do instructor questions and you're good to go. Midterms were straightforward and exactly like instructor questions, study notes from midterm review class. Final was fine, just do past exams.

This is a tough course. But I don't see how any prof can make this course easier and still serve its purpose. Overall, I think he is clear and the exams are fair. Assignments take time but will really help your exams if you understand the assignments questions and the lecture notes. A lot of memorization needed for this course.

He did a great job of explaining concepts clearly. His accent isn't nearly as bad as other people have commented, I found him easy to understand. He's passionate about math, and it's clear he's taught for a long time because he knows how to teach math well. Very helpful if you visit him in the workshop. I'd definitely take a class with him again.

He did a great job of explaining concepts clearly. His accent isn't nearly as bad as other people have commented, I found him easy to understand. He's passionate about math, and it's clear he's taught for a long time because he knows how to teach math well. Very helpful if you visit him in the workshop. I'd definitely take a class with him again.

Mr. Choi is there to gives great onee-to-one help when I drop in to the Applied Calculus Worrkshop. His lectures are thorough, though they may be hard to understand. Sitting closer to the front might be helpful to hear him better.

Tbh, I am getting between a B+ and A- in this class. I got 25/30 on the first mid term and 27/30 on the second mid term. A lot of people complain that this course is hard yet Choi makes it as easy as he can make it. The two mid terms were easier than my pre calc 12 tests (I did not even take calc in high school). Chapter 10 however, is really hard.

Puts himself in the ACW, rare for professors but was extremely help to understand him more as a person and his style of teaching. Overall great prof

Choi is a decent professor at SFU. His lectures may be a little difficult to understand but he is always available for help during his office hours. Exams are not too difficult if you study well for them

Stephen is a very caring and enthusiastic professor. He definitely simplified the course a lot, and he will TELL you what is exactly on exams. If you want to excel in this course, practice questions in advance, don't just rely on friends and study instructor questions/past exams. Also, go to workshop if you have questions!

Mr. Choi was a great professor. His lectures can be tough to understand but he is very clear in ACW/office. He also is specific in what you need to know for the tests which is very helpful. Always go to him for questions you dont understand and do the textbook questions, its what helped me.

he makes calculus really easy and tells students what will be tested on the exam. final is a little bit challenging, two midterms are easy as long as you go through the homework and the textbook question.

Good professor for people who didn't take calculus in high school. His notes are useful, but he doesn't post most of his lectures notes online (only chapters 1-3, 7, and 10). His mid terms are easy if you study the lecture notes, textbook questions, and his instructor questions. He might curve the grade after the finals.

Exams are exactly like the questions he goes over in class. Just memorize those and you'll be fine.

Lots of homework, but necessary because constant practice will help you do well. Utilize the ACW if you need help. Midterms were exactly what he said it would be. He literally tells you what will be tested. Join the math 157 group/chat (some really smart ppl post all the answers to the assignment questions and some dude even helped tutor me)

He's a great choice for a real analysis course because he makes it a lot easier than it could otherwise be. Exams and homework are challenging because analysis is a painful subject regardless of who teaches, but he is quite good at it. Definitely would recommend - an A+ is doable.

Retook math with Stephen after doing miserably the first time. Stephen is a great professor. Lectures are a bit hard to follow but can be made up for by reading the textbook. Exams are very fair and he will tell you exactly what you need to know. To do well, keep up with the textbook questions and practice continuously.

I swear he's the easiest prof for math157. His accent is quite thick but he clarifies his points quite well. Exam questions are predictable since they are similar to those on the lecture notes. He also tells you exactly what will be tested on exams.

This class was VERY well organized and he gave us everything we needed to succeed. My only minor complaint is that he writes a lot of notes very quickly and it can make lectures a little dry.

He is definitely a nice prof, his assignments are fair, midterm is not easy but he gave a bonus question so you can still get good marks, and if you did the online assignments well you get bonus marks on final.

10/10 easy class. Skipped every lecture.

Took him for required Calc I course. First lecture I sat maybe 8 rows back and couldn't understand his accent after it got distorted by the speakers in the big lecture hall. So if you want to learn anything sit in the front, no one sits there anyways everyone is too afraid of the first year math profs lol

He is a great professor. homework assignments are easy and all tests follow directly from what we learned and during review sessions before test he tells you everything that will be on it. math 322 is pretty much calc 1 with complex #'s... super easy. he is also very helpful in office hours & his notes are organized. great prof.

Stephen is very helpful during office hours and he will walk you through assignment questions to ensure you understand. He explains material very clearly and his assignments and tests are fair and he always lets you know everything on tests beforehand. He is very organized and carying. I hope I get to take classes with him in the future.

I can say Dr. Choi is a reasonable Prof. His grading scheme is fair. He is accessible outside of class. He only tests you on material mentioned in the review session and nothing out of the ordinary. No suprises. His midterm was reasonable. Homework is sometimes hard sometimes easy. Lastly, he writes really fast so it may be hard to keep up

He's a great prof. The course is proof based so you need to practice a lot. I liked that he communicated everything clearly and that there were no surprises during the semester. I also appreciated that he gave a clear guide of what to study/expect for the final exam.

Students need to understand that Math 157 is a tough course for first years regardless of who you take it with. Personally, I think that Choi did a wonderful job organizing this class and being extremely clear with what was going to be on the exams, there were no surprises. You can't blame him for the course content itself being hard.

The material for calc is hard so keep in mind that if you want to do well you're going to have to work hard and spend lots of time practicing and studying. Overall, Choi is the best prof for this class by far, his assignments and exams are pretty fair and can be easy if you practice all the material. Just be willing to work hard and you'll be fine.

Professor Choi is the best option for Math 157 hands down. Extremely clear with his grading criteria and what will be on the exams. As long as you pay attention and put in the effort, you should be able to do well in his class regardless of your math experience. Studying on your own is still required but Choi does a great job organizing this class.

Everyone complains about his accent but it really isn't bad at all. Class is obviously hard as it is calculus... do good on the first midterm as that'll be miles easier than the others. He is good at explaining concepts but goes very quickly so easy to get lost at times.

Mr. Choi is a very good math prof. I highly recommend taking him. His expectations are very clear. He is going to tell you what to study and practice to be prepared for the midterms and the final, just listen to him and you will be fine. This is a calculus course and no matter how much he teaches you, you still need to do some work on your own.

Choi isn't a bad choice. Canvas was well organized, and Choi frequently updated us on any changes. His lectures are difficult to understand due to his accent, I would recommend using the ACW, YouTube, and Textbook as supplements instead. Midterm/Final was extremely fair, and he literally tells you what to expect at review lectures.

This is an easy course as long as you practice on the textbook questions and exercises on lecture slides. His tests are extremely fair and easy, literally similar questions to what he taught us during lectures. He also goes over what you need to learn during exam reviews. Class is very well organized.

This man has taught 157 so many times it's crazy. Failed the first time I took it (My fault, I didn't study well). So revise the IQ, OQ, and the practice exams well because the same question may come in the midterms or final.

Fair lectures, but he sometimes goes too fast or writes too messily. In exam review lectures, he tells you exactly what he expects you to know on the exam, and will only test on stuff mentioned in the review lectures. The midterms were fair in difficulty, but the final was hard. Some of the quizzes may blindside you, so beware of those.

Good prof. Midterms & Final were fair. HW can be tricky but doable. A lot to remember as course goes on. Keep track of definitions & theorems. Before exams he does a review, stay faithful to it, hints to what theorems u should know proof for. Redo ex's covered in class and HW questions. TA's don't have a marking scheme, pick TA that marks easiest.

he's very caring about students.. gives hints during quizzes. NO FORMULA SHEET THOUGH

Fantastic professor. VERY organized. Very clear on grading scheme. Gives a full list of what to know/memorize for the final, which I studied and did very well on the final. Would absolutely take a class with him again. Very thick Chinese accent though.

The lectures were clear and the quizzes and exams were fair and in the same level as the things he covered in class so there was no surprising and hard questions. The sample midterms and finals were the most helpful.The grading was also fair. He helped me a lot during office hours patiently. Overall I'd say he's one of the best math profs I've had

accent is a bit tough to understand but amazing professor overall. fair/easy tests and curves crazy

Good prof for this proof-heavy course. Redo examples and practice theorems - his review sessions provide helpful guidance. Also found Unstuckstudy useful for exam prep alongside the textbook.

He reviews midterms and finals beforehand so make sure to attend those. He is a nice guy with clear expectations and is always willing to help struggling students.

This is for MATH 260. Choi is a really good prof. His accent is hard to understand at first, but once you get used to it, his explanations are actually great. Definitely in the upper tier of math profs I've had so far! Quizzes are very fair, seems to care for students' success.

easily the best math prof I've ever had. there is a reason the lecture hall is almost always is full. he is strict, but definitely respected. just go to every class and you'll understand the content. stephen has such a good way of explaining the content that I don't have to rely on youtube videos to learn

He came across as pretty stern, but he's actually very caring and willing to help. His quizzes and exams are all VERY fair and he tells you exactly what to expect in class. For the exams, go over his review guide and practice tests (which he provides), the questions on the actual exam are nearly identical.

Lectures were really clear and he provided skeleton notes that made it easy to follow along. Exams were quite fair, though the final was very long (but very similar to the practice). As long as you put in plenty of practice and do all the HW you should do fine

I enjoyed number theory with Prof Choi. The course intersects with his research area, so you can tell how passionate he is about the material. Also pretty approachable. Reasonable expectations and workload.

Professor, please teach Math 251, I am scared to take with any other professor but you :(