VERY VERY HELPFUL ALL YOU HAVE TO DO IS ASK. ALTHOUGH I STRUGGLED WITH THIS CLASS IT WAS MY OWN FAULT. I REGRET DROPPING HIM BECAUSE IM NOW TAKING THE CLASS OVER AND WISH HE WAS THE ONE TEACHING ME...MY NEW TEACHER IS TERRIBLE SO I RECCOMEND HIM TO EVERYONE. CHRIS WAS VERY FAIR WITH GRADING AND DID NOT TRY TO OVER WORK THE CLASS, NOR DID HE UNDERCH

Christopher is a very good professor. He understands the content well and communicates it even better. He curves a little bit too much for my taste but I'll probably pass the course solely because of his curving. Attendance is a good idea as is following the assignments. I would say if you were going to take calc take it with him and not Rhee

He makes a difficult class passable.

For one, I was happy with the mear fact that he spoke clear english. He does a lot of examples but not much explaining on the concepts. His grading scale makes the class difficult too. Overall, the class can be passed but not without a lot of work/studying.

Skips some steps but should indicate that they were skipped.

Chris is very nice as person..but when it comes to the calc 2 class he's not easy..although i like the way he explains..clear language and explanation.when u take his class make sure to study everything...in detail !!

Attendance is very important, make sure you read a head so that u won't be lost in class. Its a lot of material u need to be up to date. Yea his grading is little hard, but he does curve exams. I highly recommend him if your going to continue after calc 2.

Finally an English speaking teacher! I have to say he is one of the best math teachers I had at Wayne State. Definitely knows his stuff and is pretty passionate about it. Class examples are much easier than problems on quizzes and tests. Be prepared for a lot of work in class and outside the class. I strongly recommend taking his class.

Hard Class. Good Professor. Tests and quizes doesn't always reflect the homework leaving yourself asking "where did that come from?" Personally I think the book is the problem, it doesn't give the difficult problems so when tested on the harder material you are suprised. But the material does get taught with clarity.

I've had many math teachers but this probably one of the best teachers I've had. His grading is fair and his curving is fair. If it wasn't for the curve I bet most students would fail (many dropped throughout the semester as well). It's a hard class but if you're looking for an honest fair professor Christopher comes highly recommended from me.

Great teacher nice guy and very helpful. Be sure 2 go class, and bring questions he's able 2 clarify the tough subjects in the textbook rather easily. Made hard class fun and enjoyable keep it up chris

Assigns a lot of homework but takes some quiz questions directly from homework problems so it is worth doing. Explains concepts very well and allows ample class time to answer any questions you may have over the materials. He obviously wants the students in his class to succeed but you have to do the work. Not "easy"

Chris not only speaks English but makes himself available to answer questions or problems you may have. He does alot of examples. Wish he went into more theory. Also curves and makes class passable even if you do well on one exam and not another. Make sure you do homework, the quiz?s are based off of it. Best teacher I had make sure to take him

very good teacher. BUT his class is NOT easy u have to practice practice practice. He does curve exams which are easier than quizes (hopefully he curves them too).

He did a really good job running this class. very professional person to deal with. I would take him again if time went back a semester lol.

I'm jealous, he's so smart!!

Very easy going and great instructor. Explains difficult material in a clear and concise manner - take his courses!

Very helpful and clear. Will assist you as much as possible! All around good guy!! Best calc 2 teacher!!

Go to class, read ahead and do your homework, that's the formula 4 success in any class this is no exception. Bring questions as his explanations are very clear and he is able to help clarify any material. Very good calc 2 teacher and nice guy

Chris is a very nice guy..yeah sure he explains in the class but his exams are hard. i beleive that the curve sometimes does not help much, and is not a high one as other ppl mentioned here. I suggest u study well and when u take him for calc 2 but make sure to work for this classes like ur taking 2 hard classes.

Ok.. these people below me are right in some points. Yes that true that chris does curve the exams and is heplful but he also makes the class even more difficult. I mean calc 2 is one of the hardest math classes even though he does not believe this. Anyways..back to him please when u decide to take his class dedicate most of your life to this class

Chris is very nice as a math professor. I like the fact that he speaks clear english but i also want to add that he is difficult as a professor. He also does help the students but you have to ask for help in the beggining of the semester.Don't be embarrased about it.Overall good prof!

Chris is a nice guy and does a good job of explaining the material. He does not have much mercy with the content on his exams but he is generous with extra credit.

Chris is a great teacher. He gives ton of examples in class and always willing 2 go beyond the example with his explainations. Calc 2 is not an easy class but attending class and completing the homework will definitely help the process.

The class was not extremely difficult.Chris helped our grades out by giving extra points. He was avaible in office hours and he taught clearly. He never collects homework though or at least he doesn't in the summer time.His grading scale is fair and overall you can do well in the class if you do your homework and check your test and quizzes

He is nice and understanding, gives quizes and hw every week.When he explains sth in class,he gives lots of examples to make sure you understand the material. Ask your question,he usually knows the answer and explains very well. I would take him again if I he was teaching another course I had to take. Anyone should be able to do well in his class.

Very Nice Guy.

DO NOT take linear algebra unless you have a lot of math above calc 2, or unless you want to throw your money away and take the class over again. At least half the class dropped due to the fact that they were not going to pass, those of us who stayed are struggling to get a lower grade than we would normally earn in any other class.

As has been said by many of the other Linear Algebra students, the material itself was not incomprehensible; however, Chris's tests and final hardly reflected anything from class or the assignments. I don't mind being stretched mentally, but given the time constraints and deductions for minor computational mistakes, it was totally unfair.

It was a class to be in. His lectures were very clear, organize and he really spent his times preparing for them. His quizzes and Tests were from Home Work assignments. I wish the class was 4 credits, because 3 hrs are not enough for Linear Algebra. MATLAB and real life examples should be included in this class. class.

He was really easy and clear in his presentations, but since this was mat 1050, it was obviously very boring for him and us.

Very easy, just practice (duh) and you'll get an A. Clear in his explanations and knows his math really well.

Very hard but fair. He is good at explaining concepts and answering questions. Does lots of examples.

He was an awesome teacher, but you had to work hard to earn an A. He was extremely clear in his presentations and getting help from his office hours was AMAZING...he could teach math to a cockroach! If you get confused about anything visit him in his office hours...he is awesome!

Very smart, knows his stuff. His lectures are clear, homework/tests are challenging but he is more than happy to help and answer questions no matter how basic they may seem. He is well organized and prepared, helpful, and you can tell he cares whether the students learn or not. I wish he taught Algebra I/II and Analysis too.

Great overall professor, comes off kind of tough at first but is very understanding and helpful.

Very nice guy. Helpful, knowledgeable of the subject matter. Would take him again for another course!

Great Teacher! Very knowledgable in the subject matter. Really liked

Great professor! Very helpful andclear presentations. As long as you keep up with the homework and study for your tests you'll get a good grade.

Good Teacher. He was very helpful

Great teacher, very informative and helpful. Always there to help!

Very fair and understanding. Will work with you if you need help. Definitely recommend!! CHRIS ROCKS! :)

Great professor! His tests are hard, but they're fair. And he does a good job of preparing you for them. If you work hard, you'll get a good grade. I would definitely recommend taking his class.

He is a great professor, and very helpful!

Chris is a really great professor. Although this class is challenging he is always available to his students. If you want an easy A this is not the class for you. You have to earn it, put in the time doing the homework, and attend class regularly. I would definitely recommend him to my friends.

Chris is a great teacher. He is always available to his students and will always answer any question you have. If you want an easy A I would not recommend taking this class. You have to earn it by attending class, and putting in the time doing the homework. I would definitely recommend him to a friend.

Chris is a great teacher! His explanations are great and he is always available to his students. If you are looking for an easy A this is not the class for you. His tests are hard but if you put in the time doing the homework, and attend lectures regularly you will do just fine. He is a very fair teacher and I would recommend him to other students.

i would reccommend this professor for sure! he's very knowledgeable and uses lots of examples in his lectures. if you're confused about anything, he'll work with you to make sure you understand it. just as an fyi, this class involves some outside of class group work.

This class was a lot of work, but he's a very helpful and nice teacher! I would take him again if I had to.

Do your homework and show up to class and you'll get an a. Chris is helpful and quick to return emails. I hate math, but this class was fun.

The man! Very helpful!

Love him! He honestly has such a good heart and wants you to do well in his class. Hes young and so chill in class. The class becomes a family, great professor, out of all the math professors i would deff recomend him!

Chris is a good teacher and a lot of fun but the class is challenging. He's very helpful and available to students. Tests and quizzes are tough and homework isn't due until the day of the test. I would recommend him if you're serious about learning math and willing to put in an effort.

Chris is one of the best professors I have had at Wayne State. He is extremely nice and very laid back. He is always available for questions and willing to help. However, there is a TON of work! You must study for your tests or else you will not do well. Attendance is not mandatory, but you will be very lost and behind if you mis

I hate math but this class was fun! Great professor, always helpful. The class became like a family because the professor created a fun environment. I would for sure recommend him to my friends for math!

I enjoyed class on most days. You are very laid back and make for a great relationship with students. Humor is appreciated and not seen as a distraction...with this many girls you need it !!I really learned alot when you taught by example and engaged us... it was more enjoyable when you went from what you knew and made us all solve it together.

Very helpful...always willing to answer questions. Work is required to get a good grade...not just attendance and homework. Learned a TON though! Tests needed studying, but were not too much info per test. fun class....

AWESOME teacher!!! Very clear and helpful but still will throw a curve ball!

Went to every single class, took notes, did all the homework (which is a ridiculous amount) and still had a really difficult time. The quizzes aren't too bad but the tests are very tricky. Asked questions in class and visited his office hours, but he always made me feel stupid and awkward. I wouldn't recommend him

Very helpful, clear, and relatable. Difficult tests and quizzes. Throws curve balls that you don't expect. Moderately lenient.

This class was pointless becaus it was "stupid" math but Chris is pretty laid back and if I needed anything he would have no problem helping me.

This guy is clear and helpful. The class was Calc 2 and it was ridiculously hard so I failed but if you can keep up, this is the best teacher out there. Maybe hard to approach but nice a person.

I will give my honest rating. He is a very good professor who knows his stuff but his exams are very challenging. He will give you harder questions on exams than examples given in class but this is to prepare you for the final exam, which is difficult if you do poorly on exams. I would recommend him because he pushes you to your full potential.

One of the best professors in the math department at WSU. Very easy to understand, very clear with his instructions, prepares you to take the final exam and the next math class. Very caring and understanding, he tries to help you to the best of his ability. If you go to his office hours he will clear most of your confusions. Simply the best.

This was the hardest class I have ever taken. He's a great teacher just wish he gave harder examples in class.

Excellent professor. He is extremely helpful and tells you what concepts will be on the exams. His exams do try throwing you for a loop, but if you put in the effort of studying you should be golden. Also, doing the homework greatly prepares you. He also prepares you for the departmental final exam.

I loved this class because it was 2 hrs and lab anytime you want, just 3 hours a week. He is a very laid back prof. Lectures for a half hour-hr and let's you do your homework. You work at your own pace. Could finish the course and not show up if you choose. Awesome!

Very good teacher. Laid back and helpful.

Passing this class was the hardest thing I've ever done in school, but I did it and it was largely due to the helpfulness and clarity of Professor Leirstein. Tests and quizzes are tough but there are plenty of resources to help you understand the material.

Definitely one of the most helpful professors I've had. It was a tough class but endless amount of office hours and such helped a lot. His practice exams were very similar to his exams which was helpful! I also felt extremely prepped for the final because of him. Definitely a must take especially if you enjoy helpful professors!

He explains everything so clearly you can't get it wrong!

Lots of homework and is a tough class but what do you expect it's a math class. He is always there to answer questions and has office hours every day if you need help. Very fair grader however his exams are very hard. He also tries his very best to prepare everyone for the final exam.

His lectures are extremely clear and detailed. He is a funny guy and doesn't make you feel dumb for asking questions. Responds to emails quickly about homework. Quizzes are tough, but he tells exactly what will be on the quiz so you can prepare, also gives study guides for tests,plus review day. Easy class to pass, would recommend him easily!

It's calculus. Wont be a walk in the park no matter the teacher but Leirsteins lectures were VERY helpful. Always gives plenty of examples in class (the key is to pay attention). He also gives detailed study guides for exams so if you go thorough those and the hw you will be prepared for the tests. Great instructor, motivated students do well.

Chris was a great professor. I had a terrible math professor for the math class before but doing Calc 1 with him really made me enjoy math. He's very clear, answers questions very well, doesn't consider any question a stupid question, grades very fair.

I took Chris for both 1800 and 2010. This guy is an amazing teacher and I recommend him to all my friends. His classes are crystal clear and makes sense. The workload is just enough and if you study and pay attention, you won't be disappointed with your results. It's not the EASIEST class, but you'll learn and you'll understand and be content.

Legend -- G.O.A.T -- Best math teacher I've ever had

Very knowledgeable, helpful, chill and doesn't consider any question to be a stupid question. Only thing I didn't like, though, is that his teaching is full of plot holes (yes, more than Pretty Little Liars). Like, there are certain conditions that make certain problems different than others that he doesn't go over. Overall, I think he's good. :)

Awesome guy! Very understanding and does a great job explaining everything. Prepares you for all the exams and quizzes. Responds to emails extremely fast. He really cares about his students success. Wish I could take him again for the remainder of my required math credits. Register for his courses if you get the chance to, you will not regret it!!!

Just pay attention to him in class and you'll do fine. Mr. Leirstein is one of those teachers that always has it together and knows what he is doing. He is very quick on his feet to answer questions. His webassign questions are very similar to his quizzes so if you do your homework you'll be fine.

This guy is a legend

One of the best professor I've ever taken. All you have to do is show up, and understand the concept. He grades everything so easy, lots of credit if you still get your answers wrong. Definitely taking him again.

Professor leirstein's lectures are very interesting. In his class, you are always free to ask questions and has many office hours in case you don't understand anything. Exams are very fair and so is grading. There is a total of 10 quizzes and 10 worksheets, online homework, 3 tests and a final. Professor Leirstein is great! Definitely recommend!

If you go to class, copy his notes (learn them too), and do Webassign, you will do great. He truly wants his students to succeed. Compared to other math professors, he's slightly more lenient in grading as well. He's available outside of class and responds to emails the same day. Take him. One of the best. Amazing. A+.

Best Calc 2 professor at Wayne. Explained material very clearly and will answer even simple algebra. He goes step by step in lecture. Also if you don't miss a day of class he will bump a borderline grade up. Only thing to look out for, each test had a problem that was very hard.

Chris is a great professor and is probably the best math prof if you need to take a math class. His notes are clear and you will need them for the homework and to study. I am not good at math, so I went to the MRC for more help. His quizzes are every week 2 or 3 questions so if you get one wrong you can end up with an undesirable grade.

Chris is an amazing professor. I have never been in a class where, if a student asks a question, he will write out and show them EVERY SINGLE STEP. His tests were easy but beware, they're like the hardest of each section. Homework helps ALOT, sure its a ton of work but if you actually do the homework and understand them then you're set for an A.

Chris was one of the best professors I've ever had. He explains everything in a way that is easy to explain, takes the time to make sure everyone's questions are acknowledged, and very obviously is extremely knowledgable in math. I would absolutely take his class for every math course I have to take.

Despite what others have said I'd say Christopher was a pretty good professor. Theres a quiz every Friday they're only 2 questions and he tells you what they're on so if you don't study that's your fault. We had 4 tests this semester and they're 7 questions. Our final was 16 questions. The zoom lectures are kinda pointless b/c we have lecture vids.

Professor Leirstein is a very considerate professor. There are 1o quizzes throughout the semester BUT they are ONLY 2 questions and he tells you what's exactly going to be on them. He gives partial credit to all work and is a fair grader. He answers any questions a student will have and always is respectful. I definitely recommend this professor!

Good professor, but there was a lot going on between posted lectures, having to attend the live lectures, hw, and quizzes. Ik it's intended to help, but it was tedious. Kind of clear expectations. He uses the hardest questions from each unit on the exams which is what gets you you have to spend a lot of time studying or you won't do well.

He was extremely helpful throughout the course, always willing to explain and ensures you understand the concepts. The aspect that was most important to me about his teaching style was his grading, even if you get final answers wrong on tests he is very sparing with partial credit if you had errors while solving, so you don't fail over small errors

Wasn't the biggest fan of how he set up his online course. Required pre-recorded lectures were usually uploaded the morning of the required zoom meetings. Attendance was mandatory even though we never learned anything on zoom, just practiced problems. But he was good at explaining and pretty understanding of covid circumstances.

Easy class, but Professor is not the best. But it's kind of fine. He is not that bad.

He is really good at his lectures and is amazing at explaining things. He is probably one of the only professors Ive had that actually care about you when you email them. The only bad thing is that his quiz questions were the hardest examples of the material.

He gives LOTS of homework, its all super easy but time consuming, you could expect 3-5 assignments per week. He gives a simple quiz every week with 2-3 questions but I feel like coming to class for 15 minutes to take a quiz each week is a waste of time. We had 4 tests + final exams. He is very good at teaching math and hes an easy grader.

I was set to take Calc 1, but I was nervous that I wouldnt remember a lot of math content, so I chose to take MAT 1800 as review. Leirstein is a super sweet professor. He never hesitates to help students and hell do as many practice problems as you want. There were 9 quizzes and 4 exams and then the final which was cumulative. Its a great class.

Absolutely amazing at teaching math, but there is a lot of homework like more than 3 per week on average but they are pretty easy just time-consuming except for 30-60 minute work. 15 point quiz each week but he drops the lowest two, 4 tests, if you practice the material you will be fine, but Fall 2021 was his LAST SEMESTER so he's gone now.