Mestiyage Gunatilleka

This professor has taught: MATH113, MATH120, MATH140, MATH141, MATH141H, MATH240, MATH246H, MATH310, STAT400, STAT401, STAT410, SURV410
Information Review
Mestiyage Gunatilleka
STAT400

Expecting an A
Anonymous
06/18/2022
One of the best professors in STAT. He's exams are very good (nothing difficult), but you need to study hard.
Mestiyage Gunatilleka
STAT410

Expecting an A+
wmy78b
05/25/2022
Genuinely, I would give Prof. Gunatilleka 4 stars but I want to raise his reviews a little bit. He is generous and nice, the sample exams are always helpful. Besides, the exams have average around 80~90, which is decent. The HW is tough but you can always get full scores. I would recommend you guys to take his class. Disadvantages: Not well-organized, you neither know where his examples are from nor which page he is talking about.
Mestiyage Gunatilleka
STAT400

Anonymous
05/19/2022
Danul is a decent professor for STAT400. His lectures can be a bit confusing but as long as you attend his office hours and discussions, you'll be fine. He explains the concepts well if you ask him for help outside class. His homework assignments can be a bit lengthy but it's important because it helps you understand the materials. Danul gives fair exams that are similar to the study guides. Overall, if you understand the homework problems and study guides, the exams shouldn't be hard. Danul is a good choice for STAT400.
Mestiyage Gunatilleka
STAT400

Expecting an A-
Anonymous
05/17/2022
I personally thought that Danul was a decent professor. The homework assignments were a decent amount of work, and they weren't too challenging. The TAs go over the homework questions during discussion, so I recommend going to them if you're struggling with it. His exam questions were a bit different from the examples done in class but his study guides are exactly the same as the actual exam (just with different values). So if you know how to solve the problems that are on the study guide, you will get a good grade on the exams (final as well). He might change that up next time but at least that's how it was for me in Spring 2022.
Mestiyage Gunatilleka
STAT400

Expecting an A+
Anonymous
05/16/2022
I dont quite get why people trash on this professor. Danul is pretty good at teaching STAT400 and his tests are VERY VERY similar if not identical to his practice exams he gives you two weeks before the test. Textbook questions that are assigned are much harder than what he actually gives on the tests and are a free 40% of your grade. Would recommend this guy for any stat classes you take. He is the posterboy of achieving an A in a class.
Mestiyage Gunatilleka
STAT400

Expecting an A-
Anonymous
05/09/2022
STAT400 with Danul is easy enough (hence my expectation of an A- and my two stars), however his teaching style is truly the opposite of helpful. His lectures are delivered at a glacial pace and end up going in circles on some occasions. The textbook questions assigned are barely representative of the questions that are on the exams. My only saving grace in this class was my TA absolutely carrying me and the fact that the exams have a reasonable difficulty level. TLDR: If you can help it, do not take STAT400 with Danul. However, if you must, be prepared for self-studying.
Mestiyage Gunatilleka
STAT410

Expecting a B
Anonymous
05/05/2022
I thought Danul was a fine professor. The lectures can tend to drag on a bit, but he does a good job with making sure people understand the material well. He is good about responding to emails, and he takes pauses in class to ask for questions. One thing I will say is that the homeworks are pretty tough, but the exams do not reflect the difficulty of the homeworks. Not a bad choice for STAt410. Just be prepared to spend about 3 hrs/week on this class.
Mestiyage Gunatilleka
MATH140

Expecting a B-
Anonymous
05/03/2022
Will just read the textbook to you, but he is good with questions. The TAs, GSS, khan academy, and tutors are going to be far more helpful.
Mestiyage Gunatilleka
MATH140

Expecting a B+
Anonymous
12/06/2021
He's not a great lecturer -- pretty ramble-y and doesn't do a great job explaining stuff. Probably wouldn't be doing that well if I hadn't already taken calculus in high school -- definitely would look for someone else if you're a first time calculus student. However, I have no complaints about him as a person. He offers extensions on homework if enough people ask and seems to be a pretty understanding guy. If you get him as a professor it's not the end of the world -- some of these reviews are way too negative in my opinion.
Mestiyage Gunatilleka
MATH140

Expecting an A-
Anonymous
11/22/2021
He is not a very good teacher, his teaching style is confusing, takes too long to get to the point, and has difficulty answering questions. He's a nice guy and is flexible with due dates, deadlines, and so on. But the only reason I'm doing well in this class is because I've taken Calc 1 in high school. I find the best strategy for keeping up with the pace is to watch his recorded lectures on mute on double speed, much better than attending lecture in person. Look elsewhere if you're taking 140 and you haven't taken Calc 1 in high school.
Mestiyage Gunatilleka
STAT400

Anonymous
07/12/2021
I had Danul for both MATH240 and STAT400. He does a much better job teaching STAT400 than MATH240. Overall I would say his lectures are average they can sometimes be confusing and he can skip over material. The books however for MATH240 and STAT400 are phenomenal also Danul does make an effort to clear up any misconceptions and help students if needed. The saving grace for this class is that the practice exams are usually extremely similar to the actual exam. My recommendation for both classes is read the book, do the homework/practice exams and you can easily pull at least a B.
Mestiyage Gunatilleka
STAT400

Expecting an A
Anonymous
05/18/2021
One of the best instructors I've had in MATH/STAT at UMD. He was very nice and gave fair homeworks and exams. A lot of the homework he and the TA go over to help you on them, and they prepare you well for exam questions. He could be more clear in his study guides for exams but I think this is fine because the exams aren't that tough if you do the homeworks. Some of the harder concepts he explains in what seems at first a rather obtuse way, but once you get through it and do examples it gets easier to understand. HE also takes a lot of questions in the middle of lecture (sometimes too many dare I say).
Mestiyage Gunatilleka
STAT400

Expecting an A+
Anonymous
05/17/2021
First off, he's an average lecturer in my opinion, though he makes an effort to clear up misconceptions and overall seems very approachable. With that said, I ended up missing the final and he was nice enough to let me take a make-up exam the next day, which he really had no obligation to do. As such, I'd say he's overall a decent professor but he does care to help you through course-related troubles you experience.
Mestiyage Gunatilleka
MATH140

Expecting an A
Anonymous
05/06/2021
After the first week I stopped going to lecture. If not for my TA and Khan Academy I would not have made it through a class that isn't that hard. Find another teacher. He has terrible hand writing, hard to understand and not a fun person. Most people I know have said the same thing. Avoid Danul at all costs.
Mestiyage Gunatilleka
STAT400

Expecting a P
Anonymous
05/06/2021
Don't take any class with this man. Bad lecturer with poor explanations. Exams do not reflect textbook explanations as he says what so ever and his study guides are completely garbage.
Mestiyage Gunatilleka
MATH310

Expecting a B+
Anonymous
01/12/2021
He's not as bad as people make it seem. Maybe not the greatest choice for a lower level math class with a rigid curriculum, but if you take him for 310, he's fine. Also, his exams are more than fair and he curves the class.
Mestiyage Gunatilleka
MATH141H

Expecting an A+
Anonymous
12/22/2020
I took this course in Fall 2019 Pros: + Okay at explaining concepts. + He teaches based on the textbook, so it's a good resource to learn from. + Quizzes are open note and you can ask him for help, so they're not too bad. + Tests are fair. Cons: - Could be better at lecturing - Homeworks can often feel very and unnecessarily hard compared to assessments, which can be frustrating. They can take a long time to finish.
Mestiyage Gunatilleka
MATH140

Expecting an A-
Anonymous
12/10/2020
use the textbook and you will do well. he is not as bad as everyone says he is.
Mestiyage Gunatilleka
MATH140

Expecting an A-
Anonymous
12/10/2020
has pre lecture videos which are very helpful as his lectures will be review of major concepts/ more in depth with examples, always open to questions, good/helpful TAs. textbook is extremely helpful when studying for exams and doing homework. people say he is not that great of a teacher, but i found no problem with him
Mestiyage Gunatilleka
MATH310

Expecting a B+
Anonymous
11/09/2020
This guy kinda just reads from the textbook, but if you come to him about specific questions he is quite helpful.
Mestiyage Gunatilleka
MATH140

Anonymous
05/16/2020
Not that bad, not that great. Helps to go to class/watch corona-era videos because he covers what'll be on exams. Get help from TA and you'll be fine
Mestiyage Gunatilleka
MATH240

Expecting an A
Anonymous
04/15/2020
I took MATH240 with Danul in Fall 2019. His lectures are incredibly dry; he basically just reads off the textbook while writing the definition word-for-word extremely slowly. Having a good TA can really help you actually learn and master the material. I stopped going to lectures halfway through the semester and it didn't affect my grade at all. The textbook is very helpful, practice problems from the book regularly and you'll be set. The exams are almost exactly like the practice exams.
Mestiyage Gunatilleka
MATH140

Expecting an A-
Anonymous
04/09/2020
Absolutely terrible professor that should be avoided at all costs. Gives poor explanations and basically just reads the textbook in class and provides no examples. Exams are graded harshly and some exams contain trick questions that the Ta's cant even answer. Bad move hombre.
Mestiyage Gunatilleka
MATH240

Expecting a B+
Anonymous
02/07/2020
Bad lecturer with poor explanation skills. He only copies definitions from the textbook
Mestiyage Gunatilleka
MATH140

Expecting an A
Anonymous
12/27/2019
Not the worst professors at UMD. He gets a lot of flak because so many students have an ego thinking know everything about calc since they did it in high school. His lectures are heavy from the textbook, so read the section before class and the lecture becomes a review session to solidify the material. Come to class wanting to learn and visit office hours with questions, and you will get an A.
Mestiyage Gunatilleka
MATH140

Expecting a D
Anonymous
12/18/2019
This dude has absolutely no personality, he may even be a robot. He knows what he's talking about and isn't the worst lecturer. His exams are extremely difficult and the homeworks are even harder. But if I didn't make it clear enough in the beginning, the man is a robot.
Mestiyage Gunatilleka
MATH140

Expecting an A-
Anonymous
12/04/2019
His lectures are pretty hard to follow but some are okay. You honestly can just use Kahn Academy to teach yourself better
Mestiyage Gunatilleka
MATH240

Expecting a B+
Anonymous
12/04/2019
Danul is a great person, but as a lecturer isn't very engaging. Most of the semester I have spent learning the course material on my own because I don't get too much out of his lectures. If you have questions for him he is always good with answering them.
Mestiyage Gunatilleka
MATH240

Expecting a B-
Anonymous
12/02/2019
Stopped going to lectures because he literally just writes off the textbook and explains it in a way that leaves you more confused most of the time. Seems like a great guy but he does not prepare you well at all. Basically you can take him and self study the class and go to discussions, you probably will still do well. Just don't expect to learn from lectures.