He is one of the worst teachers. He believes that the students already knows. So why to bother to teach?

The worst teacher I have come across. Should not be teaching.

Wow... I have had the dipleasure of having some of the worst profs at the U of C. But Yuan is beyond all others. His lecture notes are junk, the class is boring, he makes constant mistakes during a lecture. But of course that assumes you can pay attention for more than a few seconds. AVOID THIS GUY!

OMG this man has [2] major flaws. 1) He cannot fully pronounce the english language. (its hilarious to hear him talk about food and vegetables and potatoes.) 2) This man has parted hair. Now i dont know about you but i pay for my school and ill be damned if i have to listen to him slur his mumbled words gives me jitters to this day.

AVOID THIS GUY!! YOU'LL WASTE YOUR MONEY AND TIME!!!!!!!!!!

Stay away from this man. Can't understand a word he says, he sucks at teaching....overall thumbs down!

really booooooooooooring. reary

Had to take it as a complimentary course, as most engineers opt to do the same. Brutal choice. Went to three lectures throughout the entire semester: the first one, one to find out the midterm date, and the in-class midterm. Boring. Useless. Why would anyone major in this?

This guy isn't a very good prof. He never replies to e-mails and bolts out the door at the end of class. He has trouble communicating his ideas and you can't understand his writing on the board since it's so small and messy. Best advice, know the textbook for tests and do well on assignments, which were the only good thing in this class.

It seems like he tries, but fails miserably. Boring, unclear, and at a snails pace, his lectures are not worth gonig to. I just spent all my time on Aplia and it got me the grades.

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Well pretty much the most useless prof I have encountered. Engrish, just terrible... avoid like the plague. However, as stated below, his hygiene is suprisingly above reproach...

Horrible Class. Lectures are useless. No help with assignments. The TA and him are difficult to understand. You are on your own for this class

this man is incomprehensible

ABSOLUTELY HORRIBLE. Do not take his class. You can get by with just using the textbook for instruction since he is completely useless...But why bother with his class when you can be instructed by someone who actually has some ability to teach.

For your own sake, find some other prof for economics. Incomprehensible, boring and obtuse, this guy will manage to make you hate economics, despite the fact that the subject can be so much fun. Classes are not helpful at all, since he simply reads out from opts. Do yourself a favourâ??take Econ from someone else, anyone else!

This is the first class I have ever taken that I did not attend on a regular basis. The prof was boring, never made a joke, read the slides almost exclusively. Overall the class was so painfully boring I mentally could not attend it. I only went to the first half of the classes if that and am still planning on achieving a B+ totally self taught

He's just there to read the powerpoint slides from the author of the textbook (not even his). Nothing is marked in a reasonable manner. Tutorials were a waste of time as you would rather figure it out yourself than to sit for an hour for nothing. Exams includes terms that weren't even discussed.

Really boring. What you really get in going for lectures are the exact words that are on his powerpoint slides. Marking of exams is very unreasonable. Not really teaching you anything it would just be nice to open your textbook and understand what's going on than go sit in a really boring lecture. Would not take ECON 209 if he still teaches.

Avoid if at all possible for ECON 209. Lectures consist of reading from premade slides (which he didn't write himself) which feel more like a brief overview than actual content. He goes over examples by stating a series of random, vague steps, giving the distinct impression he doesn't actually understand the questions-- so students certainly won't.

Horrible for ECON 209. Lectures use premade slides, tutorial questions use premade solutions, and the slides, lectures, tutorials, and textbook make little sense. Must have newest edition textbook for course to practice tutorial problems, which is the only way to study for exams. Exams seem to be graded arbitrarily. Wildly rude in office hours.

His lectures are horribly boring along with being practically useless as he simply copies and pastes the textbook into his slide. The tutorial problems are necessary to be done in order to succeed on the exams, yet his solutions are mostly wrong or incomplete. For the exams he gave no part marks causing majority of the class to fail.

The worst prof I ve ever had. He never makes any effort to the course and he just talks about contents that are not related to the task or exam during the lecture. Just buy a textbook and you can learn from it.

Only go to his lectures the day before exams so you know what topics will be covered, and what type of questions will be asked. Other than that the lectures aren't helpful since they're literally slides taken from the textbook. To do well in the course, get the textbook, since exams are open book, and do the all assignments and tutorial problems.

His lectures are terrible and he never responds promptly enough to emails. He doesn't post his lecture examples as promptly as he should. He seems very spaced out all the time. Terrible at communication and when he does respond, he doesn't even know what he is saying in his emails. Lectures are useless, the course is a learn it on your own course.

Lectures are absolutely useless. Assignments have nothing to do with the lectures and the slides will barely help with assignments. He doesn't respond to emails promptly and doesn't even answer your questions. Avoid at all costs.

Reads off the textbook slides. His answer keys don't make sense. Assignments are vague. Possibly the worst professor I have ever had.

He reads off the textbook PPT. Assignments are okay and his exams are easy. You don't really have to study in this class, just know how to do the assignment and tutorials and you will do good.

Lasheng isn't a good professor by any means but this class was still doable and enjoyable enough in terms of the content covered and it isn't hard to do well in it. Although as an actual lecturer, he is way below average.

Only helpful thing about this course was the tutorial. He reads off his slides for his lectures. Marked assignments much harder than he marked exams. He NEVER replied to a single one of my emails & he was a few hours late posting our final exam. He is unorganized & unhelpful but as long as you understand the tutorial content you'll do fine.

Disorganized. Doesn't answer emails. Mistakes in notes. Reads off PowerPoint notes litterally, and avoids doing examples in real time. Doesn't post dates and yet gives lots of assignments. 1/9 assignments is worth 10 % when assignments are worth 18%. Everyone found it hard to learn from him and doesn't even try.

Professor Yuan is disorganized to the point of mixing up questions between assignments. He does not know the material well enough to teach it and constantly needs to be corrected by the students when he tries to do anything that isn't on a pre-built template. If you want to learn Excel on a deep level, avoid this professor.

Professor Yuan is one of the worst professors I have come across. He never responds to emails, he does not post course content online in a timely manner, he is very disorganized, his slides are filled with mistakes, and the assignments/tests have NOTHING to do with what he has taught in class. Get ready to learn the ENTIRE course by yourself!!

Professor Yuan is very disorganized and lacks communication. Does not answer emails timely, and will have typos in his excel work. He does not allocate time for students to ask longer questions when lecture ends, and lecture material rarely correlates with assignments and exams. By far, the worst prof at the university. Don't take 311 with this guy

Reads off slides, no class engagement. The information he teaches has not been updated since at least 2008. Slides and assignment answer keys are filled with mistakes. The assignments are often vaguely worded and missing key information. He doesn't respond to emails and did not attend his own office hours on multiple occasions.

Professor Yuan states he doesn't reply to emails. Good luck getting in contact with him. Very dismissive of student concerns. I understand it's tough to teach during a pandemic but he is struggling more than any other prof. He makes lots of mistakes in lecture and on the homework answer key. I feel badly saying it but avoid Yuan at all costs.

Most unpleasant experience in uni to date. Ignored my emails. Class is curved but he never posted the curve, one day my grade just showed up on my portal. Does not go through practice questions making it rather difficult to prepare for tests. Takes long time to release percent grade (which doesn't have much meaning as class grades).

Easily the worst class I have ever taken at the University of Calgary. Midterm was a disaster, he couldn't bother to print the test so he showed it on the projector, many times throughout the test where you couldn't read the question because he was messing with it. Class is a waste of money, impossible to learn from Yuan's teaching.

Don't bother emailing him since he never reads them. Assignments instructions are so unclear that I spent more time understanding the question than solving them. Reads off slides for lectures. Clearly, he knows his problems but doesn't bother fixing them. Good luck getting a decent grade if you didn't learn these concepts from other courses.