He is probably one of the worst teachers I've had at Purdue. The class and the lab are not that difficult however don't expect to learn anything from going to class. The guy is a joke of a teacher. The lab with this class is extremely easy.

One of the worst professors I've had. Doesn't care if the student learn the material. Class average was around 44% on the first test and he blamed the class for not studying enough. Lectures are extremely boring. The lab that goes with this class (CE343) is fairly easy although some of the lab reports can be time consuming.

Stay away from this guy. He obviously doesn't care. He sat up there and read off his incomplete notes which don't follow the textbook. Mumbles and is difficult to understand. Annoying cough every 20 seconds.

Exam average...43? Exam was an hour instead of the upper level typical 2 hours. 2 hours gives you time to work and tests whether you know the material. An hour is more like testing you under time pressure and seeing how many mistakes you make under that pressure. He mumbles into his mic, you can barely hear him...USELESS

I wish I had gone to class more, but I couldn't justify wasting my life listening to him ramble and cough. He was available in his office to not answer the question I was asking. His test were simply impossible and finishable!!! He just doesn't care and is a bad teacher.

I've had Lynn for dynamics and now again for Hydraulics even though i tried to avoid him. His tests are purposely written to confuse students. He's awful in lecture and it feels like hes not there to teach students important concepts but to prove he really does know that much more than you.

You don't have to go to class because his teaching method is extremely difficult to follow. He constantly has to be reminded to adjust his notes on different example problems because he is writing out of the projector's field of view. His handwriting is very small which is a bad combination with the fact that he likes to solve problems symbolically

Lectures are pretty much useless, very poor style of teaching. Exams much more difficult than the homework, or anything else done in class, with averages around 35%. Just keep with the averages and you will pass, but very difficult to do well.

Lyn enjoys being rude to students. He laughs when you ask him questions and couldn't teach a fish to swim if his life depended on it. He complains that his exam averages are low but refuses to post any practice exams. He only talks into the microphone when he coughs, other than that sit in the front row if you want to hear him. WORST PROF EVER

Good luck trying to understand his lectures

He doesn't know how to teach and gives really hard exams and quizzes which usually have around 45% averages. His multiple choice are impossible because they can get have more than one answer, and it is tested like the SAT where if you get points deducted for every wrong one. He also sends a lot of homework, around 36 HWs. I would avoid Lyn.

You have to take this class with CE 343, the lab. I assume they make them separate to justify the extremely high workload and to not help your exam grades with the labs. This professor during both midterm seasons has made us do a ten page formal lab, lab report, multiple homeworks and a quiz on top of the exam for this class and other classes.

By far the worst professor I have had. Lectures were broad and not helpful at all. His expectations of students to be able to complete incredibly hard homework simply based on his lecture is impossible. Exams were problems like never seen before, and averages were 34%, 46%, and 41%. He has no empathy for what it's like to be a student. I hate Lyn.

An awful professor. Avoid at all costs. The averages on all the exams ranged from 30-45 percent and there is no clear grading criteria to determine your grade throughout the semester. The homework takes several hours minimum. The lectures are terrible quality and lacks depth of how to actually apply the information to the problems given.

This professor does not do examples outside of theory. Everything is done in terms of symbols that often look similar to each other because of the speed he writes at.

Three Hws a week and impossible exams

Would recommend avoiding Lyn's courses. Most of his lectures consist of exclusively theoretical information and no examples. When he shows examples, they are very difficult to read and understand. Expect to learn key homework concepts the day the homework is due. Hopefully there'll be parts of the homework you can complete before the due date.

This is a terrible, condescending, ruthless, sadistic, monster of a professor. On Day 1 he bragged about past students he failed who would have graduated. He refuses to take student questions and when questions are called out he doesn't answer. Lectures are all theory, no examples to help with excessive 3 HW due/week. Don't even try his MC on exams

This man gets joy from watching his students suffer. The civil department really knows how to pick the worst professors. So much homework but come exam you still have no clue what to do. Needs major help on his handwriting and not helpful at all when answering questions.

Blatantly condescending and rude toward students. Massive ego. MWF hw with impossible free response problems relating to material assigned THAT DAY. No partial credit only final answer. Terrible, conceptual lectures (no examples) that don't relate to labs, hw, or exams. Exams made for you to fail. You will hate your life. AVOID!

Avoid him, does not care about you learning. HWs are near impossible without online help.

You want anybody but him

It should say something when your advisor says "watch out for lyn's dynamics" it's as though the civil dept knows how harsh of a course this when consistently his average for exams are below 50% for YEARS and they don't care. As for teaching he's a pretty decent lecturer and seems like a nice dude from office hrs, but the course is a big struggle

The averages for this years exams were 40, 53, and 42. My academic advisor told me that he had a test that only one student was able to complete and was upset that he made it too easy. The homework and the lectures are very disorganized. He does not respond to emails or questions in class, but when he does he states that "we should already know."

Went to class the first month and gave up since I did not understand him (as many others did). Tried to follow the book and watched some online lectures in Youtube from other professors. I struggled a lot. Hws are very difficult, and they are due MWF. Exams are related to hws but hws are very difficult to understand. I barely passed the class.

He is difficult to understand and his handwriting is garbage. He is very theoretical so his examples usually involve a lot of random variables. He assigns crushing amounts of homework and often only teaches the material needed to finish it the day it's due. Most importantly, his exams are nearly impossible (40% avg.). Avoid at all costs!

Professor Lyn assigned 3 homework assignments per week, each of which often took multiple, painful hours. The exams themselves were not awful- they were very similar to homework- but I felt like I never got the chance to learn the material because I was always struggling to complete the multitudes of homework assignments.

Awful professor, might be the worst teacher I've ever had. Terrible, boring lectures that are followed up by impossible tests with averages in the 30s and 40s. The teacher that everyone tries to avoid. I had one friend cry when she found out he was teaching hydro two semesters in a row.

Terrible professor, exam average was 30%. Does not explain concepts in lecture, exams are hard.

Worst professor I've ever had. 3 HW per week and impossible exams with averages in the 30s and 40s. I don't know why he's still allowed to teach. Lectures are boring and theoretical. Avoid at all costs.

AVOID

Terrible professor. Absolutely awful with so much homework - the homework is due 3 times per week and usually takes over 1.5 hrs per homework. If this was not enough, the CE 343 1 credit lab class also has insane labs that takes hours each week. These factors compounded make hydro with Lyn pretty miserable; do your best to avoid taking it with him.

The worst professor I've ever had. Assigned three brutal homeworks a week and we often don't learn the material needed to solve the homework until the due date. I had to withdraw from this professor's class because the excessive homework brought me so much suffering. Please spare yourselves the suffering and try as best as you can to avoid Lyn.

If you can wait a semester, do it, worst experience I have had at Purdue.

He has no awareness when it comes to the students' well-being. His handwriting is like my 2nd grade calligraphy, and he makes us do 3 assignments a week which take as long as DMV lines. His exam averages are as low as my self-esteem after this class, and takes attendance as randomly as GTA release dates. Terrible professor in a hard class. 0/10

This has been by far the worst class I have taken. This professor just does not update your grade so you very rarely know how you are sitting in the class. He enjoys bragging about how many people struggle and drop out of his classes as if that is something to be proud of. Pre-exam quizzes will destroy your grade since it is factored into homework.

L class lmao

Do whatever you can to avoid this class with Lyn. His lectures are near impossible to follow and his handwriting is borderline illegible. His exams are extremely difficult with averages in the D range. He assigns 3 homework's every week with little to no guidance on how to do them. If you are stuck with him may god have mercy on your soul.

Exam avgs: 59.94, 67.86 Quiz avgs: 51.28, 68.14, 63.04 Final exam avg: 40.56 Took attendance twice, once was the Friday before a break, the day of a huge basketball game. I got curved to a B but many of my friends dropped or did not pass. Not tech savvy, quiet, bad writing, no time for exams or quizzes, bad hw AVOID LYN HYDRAULICS AT ALL COST

I went to his office hours a handful of times. Once I went to discuss the grading of my exam which I felt was a bit harsh. When I asked him how to solve an exam problem and explained to him I did not understand the way he was explaining the answer, he asked me if I had a learning disability because he could not make it more clear.

worst professor i've ever had, and if you ask anyone else in CE or EEE, they will most likely say the same. first time getting a C in college, and the way he assigns final grades, "C" is the average. i think around 40% of the people in my class failed that semester. avoid him at all costs, please take it with cary troy, you will not regret it.

Lyn gives thorough lectures, but everything is solved symbolically which makes it hard to follow along most of the time. He takes a whole class period to complete problems and teaches off ancient slides. Sure the tests are curved, but it doesn't justify the averages which sat in the 50s. If you can't avoid, just pray and do your best. :(

Spent lectures correcting previous lectures mistakes. Averages on exams are in the 40s which is pretty unacceptable. The homework takes so long. You will struggle through this and feel like you will fail the whole time. I should have just watched YouTube lectures from other schools. Good luck.

Beware of the exam structure. They are different from every previous professors exams. He grades as if you are a graduate student writing a thesis to be published winning awards in the industry. There are 3 big homework assignments every week.

A depressing heap of HW assignments and exam averages that crush the soul. Think high 40's to low 50's max. You can survive if you specifically go to TA office hours, try to be slightly above exam averages, and go over HW's. Feel free to not focus on them initially, but really go over them before exams. Exams are still a trash fest though.

Very old and traditional professor, the entire class is boring lectures and piles of homework. The exams are harder than everything he teaches you.

Very traditional and old professor who believes in lots of tough homework. His lectures put the class to sleep in record time. The exams are also harder than any other problems he teaches.

Avoid taking any class with him. You have 3 homework assignments a week that take multiple hours to complete. The exams are basically just old homework questions but harder and are almost impossible. The exam averages were around a 50 and the final was around a 35.

Ngl this was the most hardest CE class I've ever taken. 3 tedious HWs a week and the exams are also so difficult. Final exam was like 10 pages long with two hours given. He deducts points from multiple choice exam questions if you choose the wrong answer. The class difficulty feels like graduate level.

Lectures are extremely boring and hard to follow with poor handwriting. Attendance was recorded with random iClicker quizzes. Homework was long, tedious, and hard to follow, especially the handwritten ones. Exams are too long for the time required, especially the final exam. Grading is not transparent at all and isn't updated regularly.

DO NOT TAKE DENNIS LYN'S HYDRO SECTION BY ANY MEANS POSSIBLE.

Absolutely brutal professor DO NOT TAKE

Honestly, lectures felt unprepared and all over the place. It was like he was winging it every time, which made it hard to follow along or get anything useful out of the class. Plus, getting any kind of feedback or help outside of class was a nightmare. His "grading system" is unheard of, having all his students average in the 30s until the end.

Dennis Lyn's teaching style is from the 80's. Does not know how to use technology. His lectures are all over the place. Final exam average was a 36%. He never grades anything on time and does not keep track of grades until the semester is over and final grades are due. Do NOT take Lyn's hydro. AVOID lyn at ALL costs.