very hard to understand. i had a hard time with him, he cannot explain the material because he does not know what you are asking. this class is for those who want to show themselves how to do the work. his tests are short but very difficult. do not take!!!

UGH! i hate this class. i dont understand wat he is saying and by that i mean his english..he says perablers...wtf? save yourselves and do not take his classes..im sorry but...no!

this guy is hard to understand and if you ask him to repeat something he gets mad. Doesn't know anything about the computer program that hes supposed to be teaching and his tests are really hard and confusing. Waste of time.

Pi = Tian. If you have a choice don't take him. He will teach you how loser you are by talking about his best student who went to Rice and Standford Universitys and many others. But don't forget he is not the one who sent those kids to great schools, they were smart already. I never study in his class or do HW butI got B. Trust NOTES! NOT HW.

uhm where do i start? he has a very strong accent and he is not generous with his grading. the plato learning lab does all the teaching and he cant explain anything to you if you ask him. he doesnt give reviews or extra credit or make up exams and he is always telling you that you "cunt" do something. DO NOT TAKE HIM

This guy is very hard to understand with his strong accent. I have NO stinking clue what my grade and I don't think he does either.

Awful!!! Might know his math, but I corrected him more in a semester than he did me. Never once did a week go by that I did not have to correct some mistake he made because fellow students were lost. More than once, others thanked me for helping them understand what he was trying to do.

I don't mean to give such a negative rating, but, man, this guy deserves it. His accent was so thick, half the time, I couldn't understand a word he was saying. He assigns way too much homework and prowls the room like an eagle, waiting to get on your case if he sees you not doing anything even for a second. I had to drop it. He was that bad.

don't take him,he picks and helps the students he wants,don't give any make up test even if you were sick!!! hard to understand due to is strong accent. I DON't RECOMMEND HIM AT ALL.

All he does is talk about punishing the class, I would at least expect him to punish if he had put effort in teaching us. He just talks to the board and does not know how to answer students questions, also not very understanding. Beware, you will very likely fail the class.

don't take him,he picks and helps the students he wants,don't give any make up test even if you were sick!!! hard to understand due to is strong accent. I DON't RECOMMEND HIM AT ALL.

He knows math, but does not know how to teach it. Acts like we know everything

I'm a straight A student and have never had to drop a class, but this class was extremely hard because of the teacher. Besides having a strong accent, he doesn't explain the concepts clear enough to get a good grade on his tests.

He is the worst professor i have come across. He lacks the ability to make us understand the material and he does not really care how his students are doing in his class. I think 50% of what students learns in college is from teacher.I regretted that although i gave my 100% i was still at 50% because he didn't do his part.

It was a terrible mistake taking him for Differential Equations. If only i came here first. I took great notes and study my behind off and still had to drop the class. The test was timed and way harder then the HW problems. HW problems not similar to test. He doesn't return test for this class. He know his stuff but can't teach. We r not graduates

The worst professor I've ever had, & I have 98 credit hrs. He doesn't explain very well and is all over the board when giving examples. You get lost following him because his examples are so messy. He knows his stuff, but is incapable of explaining it clearly. You'll be learning everything on your own. Insane amount of homework and very hard tests

His accent and lack of communication abilities make it nearly impossible to learn from him. I learned 95% of the material on my own, even after paying attention in class. Has a difficult time explaining thinks simply and loves to go on tangents about former students successes. Kind of entertaining to listen to, but not in an educational manner.

Terrible teacher. I was an A student until I took his class. You cant understand what he says and does not grade on the level he teaches.

I would encourage students to look at some other campuses in the DCCCD. Do not settle for a teacher like this one because he sets up his course in a manner where more than half of the class drops and who knows if everyone left will pass by the end of the school year. Another math teacher even warned me not to take this teacher but I didn't listen.

I can say that he enjoys his job, because for whatever reason he loves math. However the same cannot be said for teaching, because he would then probably find a way to be passable at it and he isn't. If you have trouble with either bad accents or understanding math, avoid this course at all costs.

If you're taking DiffEq do the homework in the book it will be in the test. Thick accent but if you paying attention you can understand the chapter much faster than reading the book. Final is hard and random. He does curve and +2% to your grade if you have perfect attendance.

I thought I signed up for a lecture class.. guess not. everything is computer based.. even the teaching. well, he does a 30 minute lecture, but the words that come out of his mouth is jibberish, due to the fact he doesn't know English 2 quizzes a week plus an exam every 4 weeks. test and assignments are online. no help and horrible teaching.......

He walks into the room and says nothing. Writes on the board for 45 minutes, turns around, and blasts you with a thick Asian accent for a short 15 minutes. After the excruciating 15, you are left with an hour on your own to fend for yourself and figure out your homework. Don't bother asking him or your neighbor questions.. he just gets frustrated.

I'm taking this class online and it is very hard!! You will not have a life because your life will consist of MATH HOMEWORK!!! I've never had this much homework in my life! And this class is hard! When I email him and ask him a question he just says keep going lol whatever that means so I basically have given up because he is no help at all!

He doesn't know how to teach. He made too many mistakes and brags about one of his students who got an scholarship. Not organized. It's sad Richland will not fire him just because making students retake classes twice means more money for Richland. He has no feelings and doesn't care about his students. Heavy accent makes it harder to understand.

Tian knows the math but does not know how to teach. Test are based from textbook HW questions not online HW. He does not provide good feedback on test. Class started off with 30 students and ended with less than 10.

This is my worst decision for choosing him since there is no other choice. If you looking this class can help you in the future for your engineer major, don't take him. His lecture is confusing from the beginning to the end, he always talk how smart and great he is during the lecture. You can try it, if you want to find someone to punch.

First, Don't look at my grade because I earned this grade by my self and It would not matter if I had this teacher because I studied on my own. DONT TAKE THIS TEACHER. YES he knows math very good but he DOES NOT know how to teach math no way. Please look for other teacher. TAKE A CLASS ONLINE better than going to this teacher lecture.

Absolutely uncaring and unhelpful in every single possible way.

He is old school. Writes all over the board, very hard to follow. NO REVIEW, 1st test is HARD on purpose to set the tone. (will only give half class period) then lecture after. FInal is MASSIVE!! Test question are similar and NO HINT, just says: "solve dif. equa." Home work is different from test. you will not be ready for his tests. only 2 got A

DO NOT TAKE with him. The first class he spends time talking about how smart his father was and how smart his daughter is. He has very limited vocabulary and he does know English very well. Does not respond to you email at all. I don't know but he thinks all the engineering is about his course and if you pass you are smart. can't even communicate

He is difficult to understand and goes way to fast. If you are bad a math I strongly suggest finding a different teacher.

Avoid like the plague! Don't take this professor online! Very unorganized and you will have assignments on subjects you haven't and won't learn for weeks out. He can't even respond to simple emails with correct info. His syllabus is completely off. He will direct you to tutoring for questions about syllabus or due dates. Worst I've ever taken.

Thick accent makes it difficult to understand; teaches his own areas his own ways; very messy, not good at responding to questions asked in class; be ready to work hard for it; does not always go by syllabus; difficult exams, strict grader; rushes through difficult material; would not take him again. not recommended for those weak in math.

I have no idea how he is even a professor still. Do not take him online! Homework is due everynight (sometimes you have a lot of questions). Very hard with grading and counts off for everything. His final exam review, which is mandatory, is 51 questions. Keep in mind you have homework due everyday still. KEEP AWAY.

This is the absolute worst professor i have ever had! Wouldnt tell me what i was doing wrong with the tests so i could learn from my mistakes instead just kept saying go see a tutor. Worlds worst professor! Take ANYONE ELSE for this course!

+ EXTRA CREDIT (only 2% for FULL ATTENDANCE) if you miss class only 1 time, ok you will not have extra credit. + NO REPLACE GRADE OF TESTS (don't think that your lowest test's score will be changed by the same score of final test. + NO ANY NOTES ON EXAM (have to remember all things of Cal I, II, III, and your current Math class)

horrible does not know how teach. 0/10 do not recommend

Very tough grader. Test review grades seem to count towards the test grades. Grading criteria is unclear. He assigned almost double the amount of homework he usually does during the last week of the course and sent us 5 emails reminding us to drop the class on the drop day. Beware of this teacher's unpredictable behavior and cryptic communication.

One word for him "HORRIBLE". First of all, he didn't teach you at all, just gave you a bunch of homework. When I emailed him to ask a question about homework, he answered it and told you seeing other online tutors. Test was too long to finish. I love Math so much and I'm not lazy (GPA 3.9) but I had to drop this class since I couldn't handle it.

He shouldn't be a teacher honestly. I guess Richland wants to keep him since many students had to drop and take it again (Richland can make more money). They shouldn't let bad teachers like him stay here to mess up student's future. You have to study and do everything by yourself - so why we have to pay him when he doesn't teach you anything?!

He does not give clear answers when you ask, no exceptions or extensions are ever made. In my personal opinion, he is the worst professor to have. would not recommend anyone to take him.

Never take him. I got put into his class because the course I was enrolled in didnt have enough people and he is a terrible professor. Gives no feedback or help. I had him online and he provides no reason as to why you got bad grades on the test when you know that you got the answers right.

Did the 4 wk summer class for dif equations & it was horrible. Professor was a very tough grader & didnt give any feedback on grades or reasoning for your grade or how they grade. 3 exams out of our 4 exams had a class average of 45%, 60%, and 65%. & Didnt even curve the final grade even with such bad test averages. Dont take class with this prof.

During the Covid-19 pandemic, I can only take online courses. Differential Equation is one of the courses I need for my degree. He has a horrible syllabus and the way asks for you to email you written work in the most cryptic way. I love math and I am a good mathematician, but he doesn't care if you don't follow protocol.

He never taught, never put in grades, and did not let us see what we got wrong on our exams. The worst professor I have ever had. He never answered my emails. His quizzes are basically tests and he was not helpful. PLEASE don't take this professor.

Class taken online during pandemic. Syllabus dates was not updated. Tests announced by surprise. Simply put, if you work full time or have any external obligations, you will fail. long assignments are often back to back, and reviews do little to prepare for the exam. Use Schaums' outlines over Zill, and make integration automatic to proceed.

Just don't take him. He's possibly the worst professor I've taken and he's even worse over online. I do not recommend him for any class as he really doesn't give a dam about anything or the class at all.

Quite literally the worst class ive ever taken in my academic career. The professors response to all complaints is "this course is hard". Shows no compassion towards students, and gives huge workloads without any second thought. I only wish i could go back in time and not enroll in this course. My mental and physical health would have thanked me

If you do not have a good foundation on calc it is nearly impossible to pass, be ready for 4-6hrs a week in just weekly assignments on the low side. Goodluck, this is the worst class Ive taken

Others might have seen professor Tian as a good professor, but honestly, I would never take a class with him again. His homework is in my Math Lab only but his lectures are not clear at all. I did not understand anything he said. Even though I got an A but I worked very hard and attended tutoring to get that. I would say never take a class for him.

HEED MY WARNING: DO NOT TAKE THIS MAN. he did not have a single lecture. EVERYTHING I learned was from actual good teachers from youtube. When I emailed him questions he could not answer them at all as his English was horrible. He even submitted grades wrong and didn't change til he probs saw everyone in his class failing. Stay away.

Probably the worst teacher possible... Zero lecture notes, zero lecture recordings, does not reply to emails. Written work for exam is used to show proof of work rather than using it for extra points. What a joke! Avoid at all costs. This man is the perfect example of a Professor who does not care about his students.

He really is a smart person, but not a good teacher. Most of the classes are him doing problems with little to no explanation. Unless you have a solid pre-understanding of the class you will not have any idea of what he is talking about. If this class is your first contact with calculus, he is not the right teacher.

Trying to follow along with his lectures is very difficult besides having trouble understanding his English, he does not give good explanation at all to what he is doing or how he got a solution, and the reviews and hw don't reflect the test.

The professor is very isolated from his students and provides zero lectures or content created by himself. His lectures consisted only of the videos that came from the textbooks. 79% of the grade comes from exams, the rest comes from HW/quizzes. The professor did not input any grades for any assignment until the last week of the semester.

Dr. Tian does not teach at all, you teach yourself. I took this course online, and this class was a pain to go through. The textbook has more useless information than most recipes on blogs, and the videos aren't even his own. I'm lucky the course itself wasn't that challenging, because I don't think that his efforts should be considered "teaching."

Dr Tian is without a doubt the worst professor I've ever seen. He didn't teach any lessons or help. He only gave me a useless textbook and Pearsons. Class consisted of long weekends with homework, tests, and no free time. Dr Tian is not the teacher, trial by error is. I wouldn't wish this teacher on my worst enemy, coincidentally also Dr Tian. 0/5

I'm a high school senior who had Dr.Tian for Calc 3 Dual Credit. All material was learnt from the textbook and this professor added nothing to the course's functionality. He, without any announcement, posted large busy work homeworks that weren't on the syllabus. There was plenty of homework and tests were extremely tough to complete on time.

Attending his class feels like a literal HELL. When you arrive, the board is already full of examples and formulas from Chapter 3, Lesson 9. It's as though he assumes you're already familiar with the initial lessons of the chapter, despite just starting. The exam is open-ended, on paper, in-person, and proctored, and you cannot use your notes.

awful awful awful professor, in a 1 month summer class he gave us around 120-150 homework questions and 50-70 quizzes questions and 4 test each one extremely hard with 20-25 questions on each one.

Agree with pre reviews about this math class. The homework load is excessive and the practice problems are much easier than the test questions. The professor seems to take pride in making the subject harder, turning a straightforward topic into a nightmare. My grade suffered, and the intense stress negatively affected my mental and physical health.

STOP! Do not take a course with this professor. You will not pass his class.

I would not recommend this professor in any class. The Dean of Mathematics at Richland should know that Dr. Tian was the lowest-rated professor in the Math department with 136 total ratings. Wow. I am embarrassed to have been "taught" by someone who allows such a low bar of excellence for themselves and their academic pupils. Do better.

Took him online. My main issue is that his responses to emails are terrible. He doesn't answer the questions you ask him very well. Maybe its a language barrier - I dont know, but his responses are bad. He also isn't lenient about health issues unless you have a doctors note. I've had other professors like that, but some that weren't too.

Do NOT take this professor. He gives an average of 60+ questions for homework each week. When you walk in the whole board is going to be covered in math equations and graphs. He expects you to know everything. Even if you're a bit underprepared for the test, he'll give a 0. I even went to the free tutoring. Didn't really help at all.

He toots his horn too much about being the first PhD to teach here; love for CiCi's pizza, and vague sports ref. Hit the ground running with this guy. If ADHD, lucky for you. If not, watch Prof Leonard vids plus tutoring at the Learning Commons. ENG not his first language = a poor delivery. Test q's do come from HW. Fresh out PreCal prob good to go

100+ questions a week just for the concepts to not be on the test

I don't have the words to describe how awful this class is. There are not enough hours in the week to complete the amount of work this professor gives. THERE IS NO REASON That I should have to do a thousand question review on top of multiple near 50 question homework assignments in one week.

Mr tian clearly doesn't have a very good understanding of English as he gives unrelated responses to my emails, this is also WAY to much work, up to 20 hours of home work a week, I usually love math but I hate this course, don't recommend.

If you take him, ask a lot about how he's grading things. We used Pearson and at end of the year it showed my grade as passing, only for the final grade through the college to be ten points lower. My classmates grades were different as well. He uses different weights and its confusing, my teacher at the high school level doesn't understand either.