He's a great teacher. Curve's the test and helps when you don't understand.

If you don't mind doing homework for every class, and you like math, take his class. He gives tons of homework, but he curved every test and he does care about his students doing well.

Great Teacher. U have to do homework to pass and also he curves the test. I was struggling for a while till i ask for his help. He would stay in his office for hours to help you anything.

He is awesome, homework everyday, but very little homework, easy tests, and he curves them, alot. He is a little confusing to understand, if you have problems and go to his office he really helps you out, anyone could get an A in his class. He knows a lot about the subject.

His class is so so easy. He give you practice exam before your test. If you study how to solve practice exam, then you will get A. His kind, fair, and helpful.

great teacher! really helpful. the class is challenging, but nothing that anyone couldn't do. i always got C's in math, and i got an A in his class!

Dr. Chang is an excellent professor. He class does require a lot of your time, so don't take him if you don't have a lot of time to dedicate to his class.If you are a math major or engineering, you should definitely take him. He is so good at what he does and he spends a lot of time helping students to understand concepts outside of the classroom

Dr. Chang is an excellent teacher, but his class is very time consuming. There was homework every single night, and it wasn't 1 or 2 problems, more like 6+ with several parts to each question. He gives a review before each test including the final, and gives partial credit on exams. I received a B in his class. Recommend to engineering/math majors!

a good teacher. he makes things hard and makes u do ALOT of homework..but it is beneficial...

he presents a new way of teaching; using the things learnt to figure out related problems. Definately do the homework. DO NOT MISS ANY!make an attempt, he will see u working. DO presentations, it will be worth it. He is a WONDERFUL PERSON and will help and explain things 1000 times if needed. A wonderful teacher!

Dr. Chang is the shizz! He is very hard, but it isn't impossible to get an A. He has an answer for everything. Math GENIUS.

This is one of the best math professors at Armstrong. He is extremely helpful and wants the best for all of his students. You will work hard in this class, but it is very rewarding. I highly suggest taking this professor!

At times I didn't understand his lectures, but I did well because he posts good notes as well as practice tests that really prepare you for the tests. He also grades homework on effort and completeness, not proximity to perfection. You can get an A, even if you're not a math person. But if you want an A, you have to work hard for it.

Calculus II is tough. Dr. Chang assigns probably 20-25 hours worth of homework per week, and you have to do all of it to even have a hope of passing. That being said, from my experience he is probably the smartest professor at Armstrong. He knows the material through and through and has a love of Mathematics. He also explains things very well

Mr.Changs class is rather hard, but he is fair in grading apsectsa and a super nice guy I really enjoyed taking his class and have signed up for his pre-cal class as well I would recommend this Professor to someone who really wants to understand the material

Great teacher who provides everything on webassign so you can study it all if you miss anything. Dr. Chang expects you to learn pre-calculus concepts, but if you like math he's a great professor to take.

Do all the homework and spend a reasonable amount of time preparing for the tests and you're basically guaranteed an A. He goes over absolutely everything necessary to know in class, but still leaves an abundance of study resources on WebAssign. He really wants you to succeed. Also just a really nice guy.

He assigns a lot of homework but he is very clear in how to go about working the problems. And his grading systems almost gives you an A so long as you do the homework and study

He pretty much uses the problems from his lectures to make the tests. He has an online attendance option in which you can watch his lectures online and bring him your notes during office hours. Gives lots of extra credit. His explanation method is a little shaky, but he will help you out in office hours in any way possible to make you understand.

He gives many opportunities for extra credit. He knows what he's talking about and he is enthusiastic about it. Homework every night, but it is fairly easy. He's a nice guy as well. If you're serious about your education, you'll love him. He wants you to succeed!

Best professor i've ever had. HE RECORD HIS lecture so you can rewatch it at home which is great. He has a lot of free time and absolutely loves to answer questions! essentially, do the homework and be active in his class and you will do very well. i plan on taking calculus 3 with him!

Very likable teacher due to his enthusiasm and humor, but the difficult subject matter leads some to hostilities. That being said, take these other reviews with a grain of salt. Chang is the best Math professor I've had thus far. He is comprehensive in teaching mathematics-if you do the assigned work with patience and diligence you will learn a lot

While he makes you work to succeed, I found him to be a great professor. He's crystal clear, but I gave him a slightly lower clarity rating since his Chinese accent may make it a bit difficult to understand him at times. Do the homework and watch the lectures on his website if you miss class and you should succeed. Easy A if you work - many fail.

If you work hard in this class and keep up, you will succeed. Chang keeps all of his lectures, notes, and videos in one place and they can be accessed at any time. He is very helpful, but you must work hard, because the material is covered very quickly.

Dr. Chang is a great professor. He makes sure you understand the information. He even posts videos of all his lectures. He also grades on a curve. Make sure you do all the homework and mock tests!! They will benefit your grade! The class was tough, but I came out with an A. If you work hard, you can get an A as well.

Calc 2 is a hard class and Dr. Chang makes it a lot more understandable. There's homework everyday and we had a test every two weeks (the course was only 8 weeks). Dr. Chang was available for his office hour everyday after class and through edmodo. The class is mostly lecture but he posts his lectures in edmodo. Overall Dr. Chang is a great prof.

If you actually need to take Calc, I highly recomend Chang, the way he averages out your grade makes it impossible to fail his class, but of course, you have to do the work and attend class, you can't expect to pass without putting in any effort. The minimal grade average to pass his class is a 55 (which is a C in his grading scale).

I would take his class if you are not good at taking test. I mess up simple stuff and always get knocked on test grades. He averages the grades from 4 sessions so even if you bomb the test you can still get a good session gradeif you do all the work. if you get a 55 overall grade thats a passing C. Practice test are the test just a few changes

Dr. Chang is a fantastic professor. Many people underestimate his approach and typically try to find the easy way out. He definitely makes you earn your grade but also works with you when you request help to make sure you get the best grade possible. I thoroughly enjoyed his lecture videos and he grades you based on your logical thinking on tests

Great professor. Definitely makes you work. Not an easy class, but amazing teacher that explains the material in depth. He makes sure that you genuinely understand the material rather than memorizing for the test. Four tests and one final exam. If you understand the concepts, you will find the final exam to be extremely easy. I love Prof. Chang!!

Took Dr. Chang for Elementary Linear Algebra after previously having him in Precalculus. His lectures consisted sitting at a desk in front of the class going over topics while recording the lesson then uploading it for students to use as reference any time after. Great man. Lots of homework, but gives more than enough opportunities to do well

Ok, so Dr. Chang is by far the best Math professor here, but he is also definitely the hardest. He focuses on proofs more than most other Calc classes do. After most classes there is homework with at least 3-4 extensive problems on it. He knows his stuff for sure and he also gives some extra credit. This class wasn't easy, but I would take it again

Very thorough, great approach to teaching--you really have to stay engaged in class the whole time. Do all the bonus work, even if you don't need the points--it'll prepare you for the exams. Lots of homework, but embrace the workload--it's good for you. Highly recommend it you really want to learn.

He gives a lot of homework. He ask us to do three hours of homework everyday. When I was taking the course I hated it, but I really learned a lot from all those homework. His exam is so much easier than his study guide, he also give partial credit on the test. You will suffer if you take this class, but you will also learn a lot.

Dr. Sungkon Chang is definitely one of the Calculus III professors of all time

There is a lot of busy work, but in the end he's a great professor.

He's a chill guy, but his workload definitely isn't. He requires a lot of dedication to the class if you want to get an A, but not in a "No one gets an A in my class" way, because an A in this class was an 85. He's pretty funny, as well, but I'll tell you what wasn't funny- having 2 sets of homework assigned per week. Due within Two or Three days!