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David Ahn

1 course · 24 reviews

3.5
Quality
3.6
Difficulty
24
Reviews

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All Reviews

Quality: 5Difficulty: 4MEC 2900

Good professor who is very down to earth with the students. Had some very entertaining lectures, especially when diving into the conceptual connections to real life on the subject matter. Other lectures that were focused on solving mathematical problems could be boring and tedious.

4/24/2026

Quality: 5Difficulty: 3MEC 2900

Professor Ahn is incredible. Hilarious, engaging, and clearly understands economics. Lectures at a very quick pace and you often have to look back at notes to understand the material, but he provides a running list of notes for reference (no slides or lecture recordings). Practice exams and problem sets are nearly identical to exams.

4/16/2026

Quality: 4Difficulty: 3MEC 2900

Tests were hard but he had a good curve, lectures were boring but he knew the subject well

10/27/2025

Quality: 1Difficulty: 4MEC 2900

Firstly, I want to acknowledge that Professor Ahn is an amazing person. He is very funny and cares about his students. However, his lectures are difficult to follow, and he doesn't always fully address questions when asked.

8/27/2025

Quality: 3Difficulty: 4MEC 2900

exams are curved but were pretty difficult, good lecturer but moves quick

7/7/2025

Quality: 3Difficulty: 4MEC 2900

He's funny and has a few entertaining stories but his lectures felt rushed and were unclear. The majority of us were confused, and the only reason why I did ok on exams was because I studied A LOT for each exam. His handwritten slides were hard to understand in and out of class, but I heard other micro professors had slides in the same format.

5/6/2025

Quality: 2Difficulty: 4MEC 2900

funny guy but cannot teach. most lectures were entertaining but didn't learn much relevant material unless studied outside of class.

5/1/2025

Quality: 5Difficulty: 2MEC 2900

Professor Ahn is a really funny guy and cracks a ton of jokes during class. His lectures are heavy with content but if you put in a bit of effort, do the homeworks, and make sure to relearn concepts you don't know, you will do well in his class. Homeworks help a lot and his tests are very fair in my opinion. Great guy and good teacher. He cares!

4/2/2025

Quality: 3Difficulty: 3MEC 2900

Bad lecturer. Most of your grade is exams but good curves.

3/5/2025

Quality: 5Difficulty: 3MEC 2900

2-4 hrs/week

loved this class!!! the professor was great and super engaging and had a good grasp of what the students were thinking, and connected the concepts to a lot of non-money markets which was cool. I felt like I learned a lot, and if you paid attention in class and took notes, the class honestly wasn't that bad. BIGGEST advantage I had in this class was having taken Calculus III already though - a lot of the topics covered we had already gone over in that class, so it easily made sense to me, but a lot of other people were struggling. Theres also weekly homework assignments but its just completion.

5/17/2024

Quality: 3Difficulty: 3MEC 2900

Ahn is a funny guy and personable, cracks lots of jokes about gambling and poker. However, when it comes to teaching, there's room to improve. Sometimes very unclear about the material, and there are typos on almost ever single assignment/exam which is frustrating. The material itself isn't hard, but I went to office hours every Wednesday!

1/15/2024

Quality: 2Difficulty: 4MEC 2900

Horrible lecturer even though the class is lecture-based. He also makes typos on every HW and test, even the final! Very carless, both about his work and about the students. He does occasionally go on interesting tangents but those don't make up for how badly he teaches. Exams are most of your grade btw, so be ready for that. Would not take again.

12/27/2023

Quality: 3Difficulty: 4MEC 2900

Professor Ahn is a funny guy, as he would constantly share his passion for gambling, but he isn't really good at lecturing. He seemed to make topics harder than it should've been and sped through lectures. He also changed the format of the tests to include more MCs than FRQs which made the tests more difficult than previous years.

12/26/2023

Quality: 2Difficulty: 4MEC 2900

Speeds through lectures, definitely knows his stuff but does NOT know how to teach. Practice tests before midterms were a breeze compared to the real thing. Doesn\'t care about the students. He loves to tell us that "grades don\'t matter" but also makes it hard to do well in his class. You really have to teach yourself bc lectures are SO unclear

12/21/2023

Quality: 5Difficulty: 3MEC 2900

One of the best professor's I've ever had, solely due to his lectures. They are so entertaining and awesome. Class isn't too much work and the tests are straight forward.

12/12/2023

Quality: 2Difficulty: 4MEC 2900

Interesting guy, talks about random things in lectures. Practice exams and answer keys FILLED with errors that really inhibit learning. Not a horrible class if you do all the practice, but plan on reaching out to TA's a lot to get clarification on incorrect solutions.

3/2/2023

Quality: 5Difficulty: 4MEC 2900

lectures are usually pretty interesting.

1/23/2023

Quality: 2Difficulty: 3MEC 2900

Professor, he's a caring dude, but the lectures he makes is not good. For his tests, do the previous practice test to ensure your success. Also go to office hours for the problem sets, it may or may not be helpful. During class he does make interesting points not related to the lectures.

1/18/2023

Quality: 2Difficulty: 4MEC 2900

Lectures are okay but he can ramble and the class loses focus/understanding. Material can be manageable but he makes exams a bit tougher and will admit this. He doesn't seem to care too much about the students and their success (e.g. canceling OH exam weeks). Overall, a fair class made harder than needed.

12/16/2022

Quality: 1Difficulty: 4MEC 2900

Good lecturer

9/10/2022

Quality: 5Difficulty: 3MEC 2900

Professor Ahn is an absolutely outstanding person and teacher. He is not only extremely intelligent/knowledgeable on the subject, but he is also accomodating and understanding for students who are struggling outside of class. He gives extensions as needed and knows that we are trying our best. He is definitely a top WashU professor.

4/26/2022

Quality: 5Difficulty: 4MEC 2900

Professor Ahn is a really amazing person. He truly cares about his students succeeding and was very accommodating when it came to helping students outside of class. He helped to make the difficult content as accessible as possible.

10/19/2021

Quality: 5Difficulty: 4MEC 2900

Professor Ahn is a friendly and approachable professor. He truly cares about his students. He understood that being in a once-in-a-century pandemic with little to no breaks could take a toll on students' mental health. Thus, he adjusted accordingly by being extremely accessible outside of class and giving students ample opportunities to succeed.

5/19/2021

Quality: 5Difficulty: 4MEC 2900

David is a fantastic person. Very funny and approachable. His lecture notes are usually really helpful. His practice tests are pretty accurate to the exam. Sometimes lectures are a little hard to follow. Really cares for his students. Highly recommend taking a class with David.

5/12/2021