MATH 61

## Introduction to Discrete Structures

*Description:*Lecture, three hours; discussion, one hour. Requisites: courses 31A, 31B. Not open for credit to students with credit for course 180 or 184. Discrete structures commonly used in computer science and mathematics, including sets and relations, permutations and combinations, graphs and trees, induction. P/NP or letter grading.

*Units:*4.0

**Most Helpful Review**

Good class, he is very thorough at explaining the subject, the midterms are simple, the final a little tricky. He doesn't assign much homework but you should do them, helps a lot for the class. Overall the material is an easy concept to understand, so it shouldn't be too bad. goodluck

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**Most Helpful Review**

Spring 2021 - Professor Gannon is my absolute favorite professor in my 2 years at UCLA. Words cannot describe how much I wish I could take every class with him. Gannon made me feel like I was attending a little “fireside chat” in every lecture. The lecturing environment was supremely chill and relaxed compared to every other math class I’ve been in. You can tell that Gannon keeps his students engaged and gives them the intrinsic motivation to learn math. It’s just his charm. Homework assignments were rather difficult compared to other math classes I’ve been in. There was one particular problem on an assignment that took me 8 hours to figure out. To be sure, though, that problem was an outlier. A few problems on each assignment are graded for accuracy, while the rest are graded for completion. He also gives extra practice problems on each assignment, and I highly recommend you do them. I probably spent an average of 8 hours on each assignment. Homework assignments are designed to be harder than exams. The exams in this class were fair but hard. Gannon finds ways to interconnect multiple concepts we learned in single problems. It is essential that you remember every theorem in class and pay attention to how the material from one lecture may connect to material from the others. I leave this class feeling like I learned a lot and confident in what I learned. Grading (there were 8 homework assignments in total): 20% Homework (Best 7 scores); 25% Midterm 1; 25% Midterm 2; 30% Final exam or 20% Homework (Best 7 scores); 35% Best midterm score; 45% Final exam And in case you were wondering, his beard is as luscious as it appears in his profile pic, perhaps even more. What a stud.

**Most Helpful Review**

Winter 2020 - Honestly, best online notes available I've had yet for a math course. You can take these notes and understand the material in a rather short amount of time because of how well-written they are. Homeworks are difficult, but going into tests after them makes the tests feel easy by comparison. He also has a VERY generous grading scheme for individual tests. Overall, this class was a good experience and very welcomed given my experience with past math professors.

**Most Helpful Review**

Gieseker was not a bad professor, but not a great one either. The material was taught in a semi-straightforward (if boring) way. The midterm and final mirrored the homework material and the stuff we learned in class well (no surprises). My TA was incredible and basically made the class easy (Duncan). He is accessible, there was a grading mistake on one of my tests and he quickly corrected it. There's a little confusion on whether your homework counts towards the final grade, during my class, it didn't, but it was still helpful for the tests. If you have to take Math 61, your experience will be fine with this guy

**Most Helpful Review**

Winter 2022 - Disclaimer: I don't consider myself good at math. Hazel's teaching is pretty good. She's clear at showing what format she wants proofs to be in and makes sure to go over many examples that pop up in the homework, so as long as you look at her examples, it won't be too bad. I found it a lot easier to listen to lecture than try to understand the textbook for this class, while the opposite was true for my other math classes. She also recorded her lectures. She "assigns" many homework problems, but you only have to turn in three or four per section, so most of them are extra practice. The problems themself aren't hard, but because this was my first proof-based class, I didn't find them easy, either. I would definitely do the extra problems because similar ones appear on tests. The lowest homework is dropped. Her tests were pretty straightforward in terms of difficulty; there were only one or two problems where I was like "bruh". For Midterm 1 and the Final, she had a combination of open-ended questions and multiple-choice, while Midterm 2 was all open-ended. The lowest midterm is dropped. Attending discussions is mandatory because there are weekly worksheets you complete with other people. However, she drops the lowest four worksheets, so you only have to go half the quarter. Overall, I think this class was pretty good, though that might be because I took it while most things were still online. I would take Hazel's class again if given the choice.

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**Most Helpful Review**

Spring 2020 - Dr. Huang is an excellent teacher. Her lectures are hard to follow if and only if the students don't give her any indication whether they understood what she meant. Whenever any student asks any questions, she is patient enough to answer the questions in details. Also, do not neglect the office hours! She is willing to answer any questions you have regarding the course material, and she can even guide you through if you have any troubling about learning math in general. She has been getting feedback from her students consistently throughout time and is making progress that everyone can see. Maybe she is not the best lecturer yet, but she has been improving a lot even in the same quarter, so I believe she will become a famously excellent teacher very soon. Also, for a non-math major, math 61 deserves one's time. As most people know, math-61 is not intended for only math majors (it is a CS major requirement), and the course difficulty has been decreased astonishingly from what one should expect from a course in discrete math, which is math-180. Math-61 covers a lot of basic concepts that were usually assumed knowledge of in a math course intended for math majors only and cannot be more friendly to non-math people. What is difficult is NOT what the professor covers but what the concepts are actually are. One should not blame an instructor simply because a course that is intrinsically difficult was taught.