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Good teacher, u have to really work hard in his class.

Pretty okay instructor. He tends to zoom through the material and can be quite unclear at times, but otherwise for the most part, if you study, just as with any class, you should be fine. Not as good as my prior instructor though. Nonetheless, I feel confident enough with Yun to want to take Math 125 in the fall with Yun.

I think hes a very good teacher..highly recomended.. He was very helpul to me and I found that working hard in his class gets u a good grade...If u need help or u need him to slow down for u all u need to do is ask..

He is a great professor who can explain this subject well. He will make you get better understanding on Calculus. But most of my friends think he is hard. Because on the exams, we usually have some proves, but if you understand the topic, it's not that hard, otherwise...... If you really want to learn Math, TAKE HIs ClaSs!!!

he is funny, and explain very well, just sometime he`s a little bit rude with the students.But at all he is a good teacher.

he reviews before every quiz which is very helpful. doesnt want us to memorize stuff and instead teaches us derive the formulas so you dont even need to memorize them. he has sample test on his website and he tells you what subjects to expect on the tests and final. what else do you want? o yea and gives you full points on homework if its turned in

He is the best teacher and he is also smart. If you really want to understand about math, you should take his class. Althoung his exam is always a little hard but it's very helpful,so if u want to do well in his exam , u should do homework. It's up to you to take his class. Actually i took his class on math 262 and currently on math 275

nice teacher, best math teacher in ELAC

Very detailed when teaching. Answers student's questions with details and examples. Walks around while you are working to check on you and make sure you are doing the work correctly.

very good teacher, though half his class failed (mostly because they didn't care)

He is a ok teacher. He does give out a lot of homework, but he gives you enough time to do it....its just that im mostly lazy and i procrastinate. Tests are a bit hard he is a very hard grader in the tests as well. I would recommend taking a much more simple professor.

He's a very good teacher. He shows how to derive each and every formula so that you don't have to remember. He gives a lot of homework, which makes you prictice a lot (that's what's necessary for Math).The way he teaches is very good especially for students who are more in Listening than studying.You could also get used to his accent in short time.

before i started the semester i didn't know anything my 2nd time taking 110. Prof Yun was great!! yes during class time all he does is go over homework and goes over the book but he explains the material very well. yes he does have an accent but it's not even that bad. He doesn't require the lab so that's great!

he is a smart teacher. if you want to learn more about math, take him! yes, his test is not easy, but it is useful. you'd better do your hw. if you have any question, just go to office hour, he will help you.

Funny. Mean. Its difficult if you don't study and don't care, but he's a good teacher.

diffcult teacher.if you want to learn,take his class. if not, don't take his class. his class is very helpful,but very diffcult.

If you love math as me, I recommend taking him, because you are going to memorize formulas, you are going to learn how to get those formulas. Oh and a good tip is that you have to think out of the box in order to understand him.

He's a professional and implements it very well in class lectures. He will help his students & his "too cool" math nerdiness is awesome. I recommend any student to take him if they need "extra" help and want to understand the concepts behind mathematics. He will explain (might get kind of impatient;what do you expect?) down to the nitty gritty

He was easy to understand. Funny guy and he will repeat anything for you if you need him to. His course was easy and he gives you plenty of different ways to solve a problem. He doesnt give you an F if you try! I would recommend him. Great teacher.

Best math teacher. Explains everything clearly and most importantly well! Will review any trig & algebra necessary to complete this course. Test are hard but fair, nothing unexpected will be on the test. Prior to test date, he will tell you whats going to be on the test/quiz. Will definitely learn in his class. Homework is a must!

Super easy Proffesor ive taken math110=A,115=B, and now i am currently enrolled for his math 125 hoping to get a B or higher. Make sure to get all sample TEST, those same questions will be on the Final Test. Pay attention and you will pass his class,ASK question if something is unclear.He would be more than welcome to explain.

The best math teacher I have met and making life easy for me. All test problems come from lectures and sample tests. Take calculus with him!!It will make 270 and 275 easy. If you don't need 270 and 275, taking 261 with him will make 262 easy. In short, it is easy to get an A a.l.a you follow his instruction, and he makes your further study easy.

The best math teacher I have met at ElAC. He would like to help students get what he or she deserves. Just redo what he talked about in class and it helps a lot. I dont know why lots of students rate he is hard. they might not follow what he talked about in class.

Was very helpful and tried to simplify the problem for the students to understand. Would give a sample test that we had to turn in if we wanted to take the test. Would go through all the h.w. if asked!

He is actually a very good professor,and his teaching method,which is different from American professors, is very helpful and useful .He does not really use the textbook is because it is very confused,but he makes everything clear.However,the only problem is that he has accent ,but it's ok to understand.If you really want to learn math,take him.

Took this course online. You must meet in person to take 3 exams and a Final. Make sure to do all online homework and quizzes. Professor Yun will meet with you prior to testing for a review (similar to exams). If you study and master the reviews, you'll do well on the tests. Very approachable and cares about his students.

Yun's lectures prepare you for your homework and tests. Take good notes, sit in the front, don't skip class, ask questions, participate and you'll get a good grade. It has been six years for me since I took math. I almost dropped the class but I sought his help, did my homework after every class, stood on top of all assignments and studying.

I think he is a good professor and can teach a lot of useful things. Have previous exam online and you don't need to remember all the formula. What's more, if you take his lecture, you don't need to read textbook, just fellow what he teach in class and he usually review before exam. final is a little bit hard, but if you prepare, you will fine.

Nice professor, really clear lectures. Tests are not that hard but not an easy A. Previous exams posted online. Homework can be not fully finished because some problems can be "too easy to do".

Yun is a great professor to learn from but very harsh when it comes to testing the students' knowledge. Tests & quizzes were difficult to understand for first-timers but if you know your stuff, then it is potentially easy. Not very lenient on attendance and homework are good for your grades.

Yun along with faradineh are my favorite math professors. I can still hear him say "clear up your logic" while waving his hand with his strong accent. His lectures are enjoyable and he goes the extra length to teach concept behind the math. Office hours is a must. Totally laid back guy however exams are tough and class isn't for the weak.

He helps his students unlike the other professors in the Math Department. Goes over homework if students would like. I definitely will take him again in the future. Exams are 50% so just pay attention, do your homework and ask any questions if you still have trouble:) Will NOT pass you if you don't know your simple 105/110 material.

Really good guy, he has his own methods for teaching math problems but they are very easy. As long as you follow the equations step by step, you will pass easily.

I took Professor Yun's hybrid class for Spring. You only need the book for the homework questions. Math is my least favorite subject. However, I benefited greatly from Professor Yun's teaching. There are three tests which are about 10% each and, of course, the final which is around 20%. Professor Yun is also very lenient.

Many students might not prefer Prof. Yun when taking calculus because they have a very shaky calculus basis from hs or math 261(this is a perspective of a math 262 freshman). The professor gives a chance to boost your grade, & he doesn't expect you to remember, just derive/understand. His quizes are also short, and material on tests are covered.

Prof. Yun addresses at the beginning of class that; You must have already review/or have knowledge from the class before in order to be in his class that you are in now. It's "usually" a front to scare off the bad eggs and he will sometimes take a vote for some review (with a cost of course). Yun will stop what he's doing to help you understand.

Want an A? Read subject beforehand. He's a great professor but if you are going in blind into class he'll leave you in the dust. He does jump around a lot so it's hard to follow but if you look at the old exams and understand few key concepts you'll fly by

Always gave two examples to help us understand the problems and solve them. Very easy class.

He's a professor that goes through deductive reasoning. He skips steps but if the class looks confused he will clarify. It is hard to keep track of his work on the board because he kinda writes over his own work. This class is proof heavy and they're always on tests/quizzes.

Dry, but somehow also hilarious. Professor Yun pushes his students to really dig deep to try and understand math even if they are not math majors. Many people in the class felt he was strict and moved too quickly but I thought he presented logical arguments with a particular finesse and enthusiasm that is hard to find in mathematics.

He's hard. But I learned a lot that I'm not sure I would learn with another professor. His instruction on Chapter 12 is really important and takes up half of the class. Definitely do the homework right after class finishes. We had around 10 quizzes! You can't slack off in this class. Teaches you to look for reasoning in Calc problems. Good luck!

He is not a bad professor, he sometimes gives confusing lectures but if you ask him again it is not that bad. He watches you every move while you are taking the quiz or test but he doesn't do it for the entire duration. Exam might be difficult but its all in the study guide and you can ask him the hard question on it and he'll help.

I actually enjoyed all the quizzes and homework. It made me feel more ready when the test came. For tests he gives out study guides which help so much. He is pretty cool and understanding. The most important thing of this class is to just stay on top of all your assignments. Especially the hw!!!!

Professor Yun usually assigns a lot of homework, which can be kind of overwhelming. He also assigns a lot of quizzes throughout the semester. However, his lectures are very helpful. He also gives extra credit for going to the math lab.