Sumi Seo is a Mathematics professor at Northeastern University rated 4.26/5 by 1205 students, with 3.35/5 difficulty and 91.0% who would take them again (TRACE + RateMyProfessors + Reddit, updated July 2026).
Sumi Seo professor reviews and ratings: 4.26/5 from 1205 student reviews at Northeastern (91.0% would take again). TRACE + RateMyProfessor + Reddit.
Sweetest prof I've had so far. She remembers students' names and is a fair grader. She posts complete lecture notes and lots of practice exams. There is no homework and she has a great sense of humor. The class is very easy but beware of Quiz 2…MATH3081 2025-12-22 20:34:50 +0000 UTC
My biggest regret in college was not taking calc 3 with her the next semester. Actual queen behavior every time I walked in that classroom she's literally an iconMATH1342 2025-12-15 21:31:54 +0000 UTC
Sumi is amazing! This is the only math class I've ever gotten an 100% in. Quizzes and tests are basically the same as the practice ones she provides. She is super sweet and likes to be silly in class. She also tries to learn everyone's name in class. Definitely take her for calc 3 if u can!MATH2321 2025-07-06 19:07:15 +0000 UTC
If you don't go to the lecture's you're bound to fail. Although her Canvas notes are clear, she covers so much content in class that you need to have explained to you. Quizzes every week, lowest two dropped. However, she 100% gives you resources to perform on the tests, word for word, I got a 99.5% on the final after an 87% on the midtermMATH1231 2024-12-05 07:23:31 +0000 UTC
Only downside is she doesn't give you notes on what you did wrong. Other than that she's a great caring prof. took time to learn names, and is very clear about what will and won't be on tests. Quizzes are every week but they are really easy if you pay attention. If you can't understand accents be a little cautious. Big ball of energy and loves mathCALC2 2024-02-17 16:51:54 +0000 UTC
her notes are really goodMA2331 2015-11-18 03:36:37 +0000 UTC
Great teacher. Her notes are crystal clear, just make sure she sees you when you raise your handMA2332 2015-11-11 12:48:13 +0000 UTC
She's definitely not the clearest teacher out there. Here quizzes come from the homework. The key to the class is to go to her office hours. She does the problems that will be on the quiz and is always willing to help.MATHA 2012-11-13 22:39:01 +0000 UTC
She is so hard to understand. Quizzes were easy once she told us all the questions were from the hw. But the exam was so hard. Average was a 67.MATH1000 2012-04-18 14:25:31 +0000 UTC
way too fastMATH1243 2012-01-19 15:22:01 +0000 UTC
Professor Seo seems like a very nice lady but her teaching style just doesn't work for me. The class is too lecture heavy, and she doesn't really explain things well. However, she is GREAT with her online resources. I ended up skipping pretty much the entire semester and teaching myself the course and did well because she posts everything you need.MATH3081 2025-12-16 01:49:58 +0000 UTC
Amazing professor, loved her classes. Her note guides are super helpful and allowed me to get good grades on the quizzes during class time. She does have a somewhat strong accent, but it is understandable and have recommended her to all of my friends.MATH1342 2024-03-19 16:43:31 +0000 UTC
This professor is simply amazing! Sumi is the best professor I've ever had, and she truly cares about her students. She posts quiz and test reviews that make studying easier and more straight forward. She always makes sure that you know what to expect on quizzes and exams and as long as you study, you'll do great!MATH2321 2025-05-05 04:17:33 +0000 UTC
She goes pretty fast and can be a bit hard to understand at times. She gives REALLY helpful reviews before every test and midterm. You're almost guaranteed an A as long you pay attention and do the reviews.MATH1231 2015-11-10 02:08:49 +0000 UTC
Sumi isn't necessarily a bad teacher. She knows her material and is very adept at teaching it. Yet, the classes she teaches are difficult and the pace at which she moves is extremely quick. At most times, it's hard to keep up and while she encourages students to ask questions, she doesn't give them enough time to think about it.CALC2 2020-04-16 03:13:23 +0000 UTC
Sumi Seo has an average rating of 4.26/5 from 1205 student reviews. 91.0% of students said they would take them again.
Sumi Seo's classes have a difficulty rating of 3.35/5 based on student reviews.
Sumi Seo has taught MATH2321, MATH3081, MATH1342, MATH2331, MATH2280, MATH1231, MATH1242 at Northeastern.
Data updated July 2026.