2.0
Quality3.8
Difficulty20%
Would Retake136
Reviews20%
Would Retake
136
Reviews
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5
13
4
12
3
11
2
26
1
74
What Students Say
“Among all courses I've taken, Prof”
STOR435 - 4.0 rating“Take an 8am with someone else before you take this guy”
STOR155 - 1.0 ratingClass Info
Online Classes
100%
Attendance Mandatory
8%
Textbook Required
38%
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STAT031
5.0
(1)STATASDF
5.0
(1)006
4.0
(1)STOR064
3.4
(5)STAT006P
3.0
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STOR455
4.3
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4.1
STAT155
4.1
STATASDF
4.0
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Reviews (136)
He doesn't teach much of the class himself, instead using a business student to do it. When he does teach, you don't really need his information for anything. The projects are easy and the class is mostly discussion.
great class
He is a good guy. He explains everything in detail and easy to talk to out of class. There is homework due pretty much each class. The first 2 exams weren't to bad at all, but the final exam was rather difficult. Overall a pretty good class that isn't too difficult.
He is hard to understand and he does not listen when you ask a question, and therfore never answers your question.
I had him for a fys and the class was a complete joke. He said he was giving everyone one of two grades: A or A-. He is really hard to understand though so I wouldn't suggest taking him for a regular math class, and he's not a very good teacher. But he's a really nice guy and will try to help you as much as he can.
I love this professor! He is awesome. Extremely friendly and helpful.
I had him for my FYS class and I loved it. He is a really nice guy and really cares about your education.
i had him for stats last year and he was a great professor. the class is definitely challenging, but he rewards you for hard work in the end. if you put in the time, you will do well. and keep up with the homework. i would recommend him
nice man, nice course
His lectures were disorganized and repetitive to the point that I had trouble paying attention.
Precooked ppts from the producer of the book. They lack detail on the slide and very poor examples. In class Ji will teach you the vague first half of the material, and expects you to teach yourself the other half. He will only read off the slide. Homework/Test: Book gives simple examples but then HW exercises are impossible. Tests are difficult.
Most lazy professor I've ever had. I expect the professor to workout problems on the board but Ji barely touches the board except to write the most simple concepts like Venn diagrams. The textbook is over 23 years old! He says things like "I leave it for you to solve" for very important concepts. BE PREPARED TO TEACH YOURSELF, HE SHOWS NO MERCY.
Outstanding lecturer, puts a great amount of work into his slides and homework solutions. He posted the most detailed solutions and sample exams that I have seen at UNC. Textbook was clear but has gaps ; read his solutions too. Tough exams; final has more new material than you'll expect. Difficult class but I learned a ton.
Very heavy on homework, which is on the challenging side. Exams are much easier than homework, allowed a double sided formula sheet on midterms and 3 double sided sheets during the final.
Lectures are difficult to follow due to his accent, but slides are informative. Much more helpful in office hours or after class. Homework is considerably difficult and is graded for accuracy. Tests are extremely similar to practice exams. Overall not a bad guy, wants you to succeed and has reasonable expectations.
Among all courses I've taken, Prof. Ji's STOR 435 has the clearest course structure. He gives lucid lecture slides and practical reviews for exams. Also, homework problems are simply another version of examples he mentions in class. Despite his accents, Ji organizes the progress of class effectively so that students can quickly follow up.
Really enjoyed this seminar. The class was not difficult but it made the lectures enjoyable because you didn't have to worry about a huge final. Clearly very passionate about the subject matter.
nice guy
I took this seminar to get an A and was not disappointed. Everyday I put in headphones and watched Netflix. My class started a groupchat so we all helped each other on the few homeworks. By the end we had to present and he had to ask our names when we got up to do it because he didn't know any of us hahaha. Got the true first-year experience here
Dr Ji is a nice guy- he provides pretty clear course structure and tries to explain things thoroughly in class. He also posts all the notes online which is awesome! Lectures get a little monotonous/ dry and the tests are definitely challenging. This is a really tough class overall.
He's a nice guy. His lectures are boring and sometimes painful to endure. HW's due every week. The course material is just hard in general, so you're going to need to put in work outside of class to survive. He's really nice and helpful in office hours. Go to his office hours before exams to go over his practice exams.
Terrible Prof. His lectures are not clear whatsoever. He never really gets to the end of any points any has almost no lucid trains of thought. Repeats himself ad nauseum on basic ideas and gives terrible explanations of tougher linear algebra heavy concepts. There is nothing APPLIED about this applied stat class besides the homeworks in R.
I stopped going to lecture unless there was an exam or homework was due because I found myself not learning anything from lecture. Thank goodness there was a textbook, but even then I struggled to learn the material myself. Exams are just like the practice exams he posts though, homework isn't too bad.
First exam was easy. Second exam was challenging. The final exam was un-doable. He's a good lecturer but constantly make sure to not fall behind on the material. Office hours were helpful. Probably the hardest conceptual class i've taken but overall it's not that bad as long as you're on top of your work. He also curves in the end.
His lectures are incoherent. His slides are worthless, they have no definitions or practice problems. He never solves problems in class. The class is asleep halfway through any lecture. TA was non-existent. I had to rely on the textbook for learning the material. Tests were incredibly difficult. After we went online, he made the tests even harder.
I personally did not find Prof. Ji's lectures helpful. He basically reads off of his pretty bare slides, so I did most of the learning on my own as it was hard to review the material by looking at his materials. The textbook is so-so. His practice exams are similar to the actual exams. Follow his advice in studying smarter by categorizing problems.
Never responds to emails. No feedback on any grades. Never got the final exam grade back, nor the answers to it. Once the final exam was handed out all of the absolute minimal communication vanished. Lectures were essentially useless, just talking to the board. To pass is to be self-taught.
He is just reading the slides and never explains the concept and how to get the answer... His lecture is so confusing.
Took him during the summer, but you should wait to take STOR 435 with a different professor if you can. No email responses, no form of communication, poor slides, and probably the worse professor that I have had at Carolina.
Doesn't really lecture, reads off slides (incoherently), no good notes or good practice for exams. This class is tough enough as is and Dr. Ji honestly makes it worse. You can succeed if you're dedicated and just teach yourself from the textbook but man is it hard. Save yourself from this if you're taking in the fall, wait it out till spring
Taking STOR 435 over the summer remotely is an incredibly rigorous experience. Lectures involve the prof reading off slides. Lots of hw, but solutions in the uploaded answer key is clear. Use office hours for help, prof wont bite. Exams are very difficult, no practice exams are given, no partial credit. Review hw and hard textbook problems.
I took Professor Jis STOR 435 class over the summer as an online course for the Statistics major credit. He never responds to any emails and his lectures are essentially useless, youre better off reading the textbook or other online videos. For the summer course he also doesnt give any practice exams so the tests are extremely difficult.
Prof. Ji is the worst professor I've had at UNC. This class is very difficult conceptually, making it very important to be taught by a good instructor. Rather than actually teach the material, Prof. Ji just reads words off slides and does no instructing. Completely inaccessible outside of class and does not care about students actually learning.
Professor Ji is a fairly unhelpful professor. I have prior experience with the subject matter (I've taken Exam P) and yet his tests are still super confusing and there's no good way to prepare for them. I'd recommend taking with another professor if you can. Maybe he's better during the year bur SS1 was horrible.
Lectures are not helpful. No piazza. You have to take time between loads of hw to prepare for the weekly exam which each take up 15% of the final score. (So total 60%, ss1). This is insane since final which you have good amount of time to prepare only takes up 20%. And there are no low score drops. If you misplay on one you are done.
5 exams in a month. His lecture slides are pretty great to study from but aside from that I did not get much from this class. Trying to learn all the material required for this class in such a condensed amount of time was like climbing a mountain of broken glass while having spiders and scorpions poured on you. Would not recommend.
Dr. Ji has to be the most passionate professor I've ever had a class with. The effort and emotion he pours into each and every lecture really makes me forget I'm taking an online class. He truly wants each and every student of his to succeed at any cost. I wish more professors had his attitude towards learning; he toils for our happiness each day
Cons: His recorded lectures were only 15-45 min as opposed to the scheduled 90 min class time, he didn't post grades for 3/5 of our exams, and his communication wasn't great. Pros: I felt that his slides/lectures did a solid job at explaining the material and that his expectations were fair. He also curves.
Like any math/stats course, it's important to do hw regularly. That's why I find it helpful that he gives hw every week. My advice is to go to office hours especially before an exam. Do the practice exams and you should be fine!
I took the class over SS1 the class consists of 4 midterms, 12 HWs, and final. Recorded lectures are not helpful and difficult to understand. Use the textbook and slader to actually understand the material; this is essentially a self-study class. The tests are easier than textbook concepts. He curves at end but he didn't gave our last 3 test scores
This class is challenging no matter who teaches. Turns out to be ok as long as you work SUPER hard. Go to his office hour frequently (never leave a question unanswered before the next class time, you'll fall behind).He explains things very well in office hour, not so well in recorded lec. Having strong math foundation and logical thinking is a plus
Took it in ss1, this class is challenging and intense, but Professor Ji really wants you to succeed. He held 2hrs of office hours each day, explained answers well, and did CURVE a lot in the end. If you did poorly in this course don't only blame the professor, it's your own responsibility to really put effort into it if you want a good grade.
Professor Ji is absolutely the worst professor I've had at UNC. For a 1 hour 15 min lecture he posts a 35 minute video with 2-3 convoluted examples. You're better off using the textbook as the only class material. I tried to go to office hours but he was "unavailable" and his TAs didn't understand concepts. Pretty sure he had student emails blocked
Easily the worst and laziest professor I have ever had. He has no care to teach students. Hardest class I have taken at UNC
Pro: He is a nice guy and he clearly knows his material. There is weekly homework (nice for keeping up) and tests are similar to his practice tests. There is usually a curve. Con: Sometimes I have to teach myself because we are asynchronous and the material can be hard to understand from videos. Also, the last test took almost a month to grade.
Dont take a class with him. Not accessible, never responded to any emails. Reads words off slide for 30 mins for a 1 hour 15 min class. Even slides are convoluted. I have a fair bit of experience taking hard classes in math (521 and 590s) and grad courses at the 700 level in logic, and this was by far the worse.
Lectures are incredibly ambiguous and no longer than 5 slides. Most of the slides aren't coherent enough to even understand what it is you're studying. Homework doesn't align with anything and very few example problems are given. The ones given aren't even explained fully. Tests were really difficult in this class.
Have to teach yourself material from textbook. A problem-solving oriented approach to this class is the way to go, since lectures can be convoluted and hard to comprehend. If approached with specific conceptual questions or hw problems, he'll be helpful. Practice tests are essential and tests heavily resemble them. Online, this class is a slow burn
3 exams and a final, each worth 20%. homework worth 20%. Homeworks are weekly and take 2-3 hours. The lecture notes are dense but concise, which may take getting used to, but everything you need to learn is in them. The lecture videos elaborate a little further. If you can do the homeworks and practice exams, you'll do well.
This may be a personal thing, but his teaching style did not work for me. Especially online, a lot of the learning falls on you. He posts PowerPoints and videos, but I found them vague/confusing and rather unhelpful. He is also atrocious with responding to emails and getting grades back. You should probably plan to live in office hours to do well.
Professor Ji is one of the most unorganized STOR professors I have ever encountered. His lectures were extremely disorganized and I did most of my learning through the textbook. He doesn't release exam grades for like a month and also doesn't answer emails. He curves heavy but at the expense of my raging anxiety. Tests are very very very HARD.
Agree with most everything already said. Horrible class. Might be bearable in person, but if its online: RUN
Dr. Ji is a decent professor and explains the overall concepts pretty well. However, he does not teach with examples. So, there is a fair amount of self learning with this class, but his test questions are not too hard. The only issue with his tests are that they have little partial credit. Significant curve at the end too.
One of the worst teachers I've had at UNC. Lazy, poor teaching. Had to teach myself everything, and he was terrible at answering questions. Do not recommend.
Professor Ji devoted two hours per day for office hours and I found that incredibly helpful and generous, and made a huge difference in my success in the class. I therefore highly highly recommend that students take advantage of this on a regular basis, as needed, to fully grasp the material. Work hard and you'll be fine!
Professor Ji posted lectures and held office hours during class time, and very obviously cared about his students from my experience in office hours. It was sometimes difficult to get an email response, but again, he was available on zoom during class time. The exam problems were almost exactly the same type as on the practice exams. USE THEM!
AVOID! He is difficult to follow, is incapable of engaging a class, uses ancient powerpoints, and doesn't teach the concepts well. I did well in the class, but not because of him. Had to teach myself. If you're decent at math, it's an easy A. We started with 200 students each lecture. By end of the semester, only 60ish showed up to his lectures.
I can tell that he cares about the subject, however, he does not demonstrate how to solve any problems. He talks about the subject, but that is it. As a demonstrative learner, I found his class very difficult. I depended heavily on textbooks and youtube videos. I eventually stopped going to the lectures and started using the class time on youtube.
Do not take Prof. Ji for STOR-155 if it's still online. Worst class experience I've had at UNC as someone who has never taken a statistics course in my life. Avoid at all costs, not worth the semester of misery. He cares about his students, but the online format is NOT for him. You'll need to 90% teach yourself to succeed.
Prof. Ji is a nice guy, but teaching online is not his strong suit. Lectures primarily consisted of him reading off of PowerPoints verbatim. Not very conducive for learning. The fundamental math taught in the course is fairly simple, a lot easier than the math in PHYS114/115 imo. You can succeed in his class, but a lot of outside work is needed.
Professor Ji honestly cares a lot about statistics but does not know how to communicate it well. He does not answer emails or give any feedback on exams, most of the time he doesn't even give grades he just tells you to "figure out your own grade." This class was taken online so that could be part of the problem, but it was overall horrible.
Professor Ji's lecture style isn't for everyone- he reads off of slides and gives vague examples, sometimes without being clear of an answer. His exams are pretty similar to the practice exams he provides beforehand but the T/F questions are tough and require application. Not the best prof to take the class w but manageable, self-taught.
Just bad. Take another teacher if you can. He cannot teach well and I don't think he cares enough to teach better.
Hard class. Ji is a mediocre lecturer at best. His powerpoints are heavily theoretical and consist of examples that do not show work. Exams were not overly difficult, though you have to study for them thoroughly. Use his practice exams, form a study group, and stay on top of the material. If you don't, this class can get away from you very quickly.
Typical math class. Difficult material. Lecture/HWs are really hard, exams are pretty reasonable, with a reasonable curve at the end. He makes a big deal about needing to know a lot of calculus at the beginning of the semester, but you'll be okay with basics. Ji himself is perfectly fine, though his slides are more of a guide for him than useful.
Not a great lecturer, just reads off of super technical slides with vague examples. This is a hard class, so most people are forced to self-study. Homework has answers online, otherwise they would take a decent amount of time to figure out. Tests are somewhat fair if you study the practice exams (still challenging though).
The worst professor I've ever had, if you're willing to completely teach yourself then go for it but otherwise take someone else. His lectures make stuff from intro statistics confusing and even when asked about specific questions he explains poorly. The tests are easier than the homework and resemble the practice tests.
The lectures were pretty unhelpful for learning the material but they often did walk through homework problems. He obviously cared about the students grasping the material, but I struggled a lot with the structure of the class. I feel like he had a specific way of teaching that did not work for a lot of students. You kinda do have to teach yourself
I have been in this class for only a couple weeks now and he is a really nice guy but he's a very difficult professor to communicate with. The material itself is not too hard, especially if you have taken a stat course in high school, but the lectures are borderline unintelligible and the structure of the course is extremely disorganized.
Don't take him. His PowerPoints are meaningless and abstract and it's all he uses to teach. He doesn't make sense. Not sure how he is an instructor here. He provides no examples and is not accessible outside of class.
Do not take his class. I literally don't know how he's a professor at this school. The absolute worst experience. If you can't get into another section and you need the credit either wait until next semester or get the credit over the summer. Literally avoid at all costs.
The entire format of the course is designed for the student to fail. His lectures are very difficult to understand because he doesn't put them in terms that most students can understand. He has examples during lectures but doesn't work them out. The HW he assigns randomly though the semester does not match what he teaches in class.
This class is the worst class I've taken at UNC. Prof. Ji is inaccessible after class hours and does not respond to emails. I never went to lectures, because I could not understand what he was saying. I am about to write my final and I know I'm going to fail. I had to self-teach myself before every homework-this class has caused me too many tears.
He doesn't respond to emails or takes forever to respond. His lectures don't make sense.
He is not a good professor at all. You will have to teach yourself pretty much everything in this class because he uses very outdated powerpoints and his lectures are extremely dull and he is difficult to understand. No one goes to his lectures because you won't learn anything and I had to teach myself everything on khan academy.
Literally just do not take a class with this professor, especially if it is STOR 155. You have to teach yourself the entire curriculum and you will never even know if you're doing anything right because he never posts the answers to anything he does in lecture. Please save yourself and do not take this class with this man.
Im not sure how he is employed by the university. He doesn't teach. His lectures have examples without answers. He doesn't go over the examples in class. Class is a waste of time and everyone leaves the exams feeling like they failed and probably did to be honest. Just dont take this class with him.
Professor Ji's lectures were difficult to follow and although they had a decent amount of useful information, they had quite poor delivery. In my experience, he is not the best at handling questions in class or responding to emails. For an intro course, you can get by, but I would just recommend any other professor for this and all stats courses.
The lectures are very very abstract and no steps for difficult problems.
Extremely bad at lecturing. You have to teach yourself everything.
Prof. Ji's lectures are impossible to understand. He is never available for help outside of class. He rescheduled our exam 20 minutes before it was supposed to start because he had not finished writing it, and he gave us study materials that didn't even relate to the exam. Be ready to teach this class to yourself...
Cannot reach outside of class time. He will not respond to emails, even when higher-ups at the university are brought in. I taught myself this entire class from the textbook, as the lectures consisted of a string of abstract concepts we were not familiar with. I would not recommend this class to anyone looking for a STOR 155 credit.
Take an 8am with someone else before you take this guy.
He gave like 10 short hw assignments for the semester, and there was a huge lack of practice problems. He makes a pretty basic statistics class harder than it needs to be. Get ready to teach yourself
His lectures don't make any sense and are not helpful at all. You have to teach yourself everything. It's impossible to reach him through email, and he doesn't announce important info until the very last minute, or just not at all.
Lectures are pointless and you learn nothing. Relied solely on my previous math knowledge in this class and am on track to come out with a good grade, but not very satisfactory. Homeworks can be very confusing
Dr. Ji was shockingly bad. He is clearly a tenured professor who has given up in trying to teach students the material. I saw the awful reviews and thought I could muscle through, but I would seriously implore a student considering his class to find another option. During every single exam period, this man was editing the exam as we worked.
He basically goes through the motions in lecture, shows difficult examples on slides, but barely ever touches the board to actually explain what is going on. He can't explain anything clearly. There was always confusion about the exams because he made them last minute. Distracting for anyone who actually wants to learn the material.
Ji wasn't the best professor for 435 by any means. He never responded to any email that anyone sent him throughout the semester which was super frustrating, and we never knew how the exam was going to be administered until 10 minutes before the exam. Lecture slides weren't helpful in the slightest and its basically a teach yourself kinda class.
Ji is a great professor. All homework hard problems could be found on his lecture slides. He gave previous-year exams for midterm/final, and as long as you got that and questions on the slides, you are good to go. He also curved generously for the final grade, and accessible during Office hour. I really enjoy taking his class.
He's a good professor: he's nice and will answer your questions. His exams have been okay so far. Also, he doesn't assign too much homework. I expect to get an A in this class.
Professor Ji was unreachable outside of class hours. Our first exam was rescheduled 20 minutes before the start time due to his negligence. While tests were online and open note, his unintelligible lectures made it impossible to understand any of the content. Be prepared to find a tutor to meet with once or twice per week. Avoid this class.
DO NOT TAKE!! Never responded to emails & most skipped his lectures because he mumbled and stayed on the same slide for 30+ mins. He doesn't demonstrate any concepts, gets distracted, and often couldn't answer student's questions. BE PREPARED TO SPEND HRS TEACHING YOURSELF. I even considered talking to someone above him because of this negligence.
Professor Ji was very disorganized and went off on a lot of tangents. It was very difficult to follow the lectures as he never gave straightforward lectures. The homework was much more difficult than what was taught int he lectures and was sometimes completely unrelated.
Doesn't answer emails. Gives no feedback on hw or exams (you know WHAT you got wrong but no explanation ab how to do it right) Lectures are a joke and will leave you with more questions than answers. You WILL need to teach yourself the content. Went to the Learning Center to review midterms, told me they'd never seen questions worded so weirdly...
The class is straightforward, especially if you have a background in high school statistics. The instructor is personable and kind, though there might be some communication challenges. Nonetheless, it's manageable.
Professor Ji teaches this course as if you have already learned all the material, and he is simply there to provide a supplemental higher level abstraction of the topics being covered. It's almost more like a graduate refresher course on probability than an introductory undergraduate course. The Pitman text is difficult. Good luck.
I'm not sure how he's allowed to teach at this school, thought this was a top 10 public University.
Nice guy, but it was hard to follow his lectures. The examples in the slides are very hit-or-miss, and the textbook was often unhelpful. Also, the material in this class gets MUCH harder after the first few weeks. The exams were pretty fair, though.
Doesn't respond to emails. Has no idea what he's teaching. Lectures are useless, most skipped them after the first few weeks because they were a waste of time. The practice tests he gives out don't help. You know what you got wrong on the exams but he doesn't tell you how to do it right. Final is 40% of grade. Textbook is unclear. Do not take!!!
DO NOT TAKE HIM. Doesn't reply to emails. Use one class to cover three lectures rather than postponing the midterm. Horrible lecturer. Forgot to post study materials before exams.
One of the most unclear lecturers I've ever had, but he is also such a nice soul and a treasure of a person. I would've loved to have met him outside of the classroom for a conversation but in the class he commonly speaks without writing on the chalk board or will show a slideshow of 4 to 5 slides... including the title slide.
Prof. Ji has some of the most outdated and confusing lectures I've ever seen. Very unorganized professor who gives VERY little supplemental problems (4-5 per EXAM), and overall makes an intro class more difficult than it should be. 2 midterms and the final are worth 70% of your grade and they look NOTHING like the homework/problems you've done.
Worst teacher I've ever had. Makes an intro level class near impossible for those without a background in stats and is completely unreachable outside of class. You will have to teach yourself EVERYTHING, so be prepared. Would highly recommend another professor, none of my friends are having the problems I am.
Really bad professor. Bad lectures, bad communication, and confusing exams. Literally just reads off of powerpoints that are older than we are. We had a maximum of 15 people show up to lectures in a class of 150+. Exams are nothing like homework and we literally zero practice problems were assigned for exam. DO NOT TAKE. 8 AMs would be better.
The course is not great, he doesn't teach so much as he summarizes concepts as if you already knew the information. There are 2 tests and a final along with maybe 14 HWs on Cengage. H said he would reopen some dates on the HWs but never did. I take my tests at ARS and it became routine for me to have to wait 30+ minutes for it to be sent. not fun
Professor Ji is a super kind man and he seems to care about his students, but the course material and lecture style was largely inaccessible. It was very difficult to reach him since he didn't respond to emails, and lectures were often just 5 or 6 slides without much written down on the whiteboards. Super kind person, but not great lecturer.
Any of his courses are ok if you're the type that doesn't go to lectures would rather self study all of the material. Homework is significantly more difficult than exams, which are pretty predictable. Speaking to him directly after class or going to office hours are probably the only ways to get in touch with him: NOT reachable via email/Canvas.
His lectures are 75 minute yap fests and his slides are only a few pages long - get ready to teach yourself. Unreachable by email/Canvas. Homework problems are only loosely related to exam questions. Worst professor/teacher I have ever had in my life; he should not be allowed to "teach" this class the way he does.
Ji is pretty incoherent in his lectures, and the course feels, as someone else put it, like a graduate refresher more than a first course in probability. Ji offers intermittent office hours where he will reexplain things to you, but he doesn't do a great job making it very understandable there either. Exams are very similar to practice and lecture.
Worst communicator I've ever encountered. Never answered email like literally ever there was no way of getting to him!!! Only positive is you never have to go to class. I did better teaching myself the material. But you are screwed if you have questions. My final grade for the class was just posted yet I have ZERO clue what I got on the final.
He is a good guy, but his teaching is just horrible. His tests are tricky. I don't know how it's possible to get a good grade in this class.
Just don't
Horrible lecturer. Difficult to understand the material from his unorganized lectures and he doesn't bother to work out examples. You get very few practice problems before exams and homework does not align much with what's on the exams.
Professor Ji seems like a very nice professor on the outside, but in the lecture hall, he is one of the most boring professors I've ever seen. He takes a million years to prepare for every lecture. The slides are older than some of the buildings at UNC, and the way he talks makes It super hard to understand. Thank god attendance was optional at 8am
THIS CLASS IS SO BAD. I have never made a class pass or fail quicker than I did. The textbook is so unclear with the lectures being even more unclear. I attended so many peer tutoring sessions, just to be told that the material covered was never taught to the peer mentors. The teacher is even less helpful, just take with another professor, trust.
DO NOT TAKE STOR 155 WITH PROF. JI !!!
Do NOT take this class with professor Ji. Lectures are boring, and slides are vague/unhelpful. Get ready to teach yourself. Exams are nothing like homework, and he doesn't go over practice problems. He is also extremely hard to reach via email/canvas. Do yourself a favor and take the class with someone else
JUST NO!!!
Terrible professor and terrible course :(
Take this class if you are good at self study, his lectures are useless. The tests are super hard. No attendance, and makes no sense to go since his lectures are super boring
He was unable to answer questions in lectures, gave exams with content entirely different than that in lectures, and won't respond to your emails. The TA's listed weren't even for this course and he's inaccessible outside of class. Awful
Ji's lectures can be unfocused, but using the textbook and unstuck AI for extra practice really helped me grasp the material. His exams are challenging but fair if you stay on top of the work.
DO NOT TAKE WITH CHUANSHU. I have no idea how I made it through this class alive. I did not learn anything from prof, I taught myself EVERYTHING. If you are down to teach yourself and be clueless 24/7, go for it!
dropped halfway through the first class because I genuinely cannot understand him and have never been so confused trying to understand what a person was saying. seems like a nice guy but I can't believe he still teaches at UNC.
Does not speak easily understandable English. Lectures are pointless.
Tests were sooooo hard, and it was not a situation where you can study until it works. It really just doesn't. So frustrating but very nice man.
He is so useless. Spends so much time talking on one slide (one time he spent like 40 minutes on ONE slide) and goes off on crazy tangents. I was fine just teaching myself because his lectures were useless but then he implemented a random pop quiz rule because almost no one was showing up. Also his exams are MCQ and pretty hard.
The most frustrating class I've taken! Professor Ji rambles endlessly, rarely writing anything down, and somehow makes simple topics confusing. Emails? Always ignored. Exams? Brutal MCQs with no feedback. He even added random quizzes after the spring break because no one showed up. If you take this class, be ready to self-study everything.
JUST NO! NEVER!!!
Hate to say this, but you might as well not attend lectures. Professor Ji tends to go off-topic and is difficult to understand. I taught myself mostly from the textbook, since the homeworks he gave us weren't reflective of exam materials. He doesn't seem to care about the class in general, as he was late to the final exam and never answers emails.
Professor Ji's class (in terms of graded work) is easy. You don't need to attend lecture or put effort in. He allows cheat sheets on all exams and posts previous exams in canvas. These exams tend to have reused questions. For a cheat sheet, I printed the previous final, answered the questions, and the final we had was over 50% the exact same.
I didn't go to a single lecture and just self studied. Really didn't learn much. His tests weren't straightforward and I got an A by some divine providence.
Granted this was his second time teaching this course, it was very unorganized, grading was unclear, the midterms did not reflect what we learned, slides were repetitive, and he kept interrupting students to get his point across when they asked any question
Lied about the content of every exam. Said they would be multiple choice only to find out when the test is passed out that its free response. Said the final would be open note, ldoc says lol nevermind. We basically had to bully him into allowing our lowest midterm to be dropped. Not a fair professor, not a good experience.
Cons: Lectures pointless. He goes on tangents every class and does not stay on topic. Does not respond to emails. Does not even upload grades to Canvas. Changed the entire format of the final on the last lecture of the semester, from open note/open internet to closed note written response. Pros: crazy grade curve at the end of the semester
Class Info
Online Classes
100%
Attendance Mandatory
8%
Textbook Required
38%
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B+
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