4.3
average from
3
ratings

“**Extremely helpful and a great teacher.**”

I have been teaching all kinds of math from high school to college for 20 years in Korea. Before I migrated to US, I was a very successful math instructor. My educational career includes ten years of teaching college students and researching mathematics, special instructor at a gifted science school for seven years, and instructor of Korean SAT

Background Check:
Passed

In-person lessons

I really struggle with mathematics especially when it gets to a higher level such as calculus. Sang was very helpful and found ways to make it easy to understand the material that I was given for my class. His accent is indeed prominent but it does not in any way hinder ones ability to understand what he is saying. I highly recommend him for any form of tutoring, especially mathematics. I will definitely be using his service in the future.

Math:

Test Preparation:

Language:

Korean
Approved subjects are in **bold**.

In most cases, tutors gain approval in a subject by passing a proficiency exam. For some subject areas, like music and art, tutors submit written requests to demonstrate their proficiency to potential students. If a tutor is interested but not yet approved in a subject, the subject will appear in non-bold font. Tutors need to be approved in a subject prior to beginning lessons.

I have taught calculus at some colleges for ten years. Also I taught AP calculus for two years since I migrated to the U.S. I could feel them satisfied because of my expertise and well-organization for the each class. I am also very happy to see them happy to get more natural understanding calculus.

I am a native Korean speaker. I am holding a Korean Secondary School Teacher Certificate. Also I taught math in some colleges and secondary schools in Korea over 15 years.

I got a Ph.D. degree in Math. And I have taught the course of Linear algebra in college over ten years. So, I am very confident in teaching linear algebra.

As a math professor, I had taught calculus for ten years. And as a high school teacher and instructor of Learning Center, I have experience of tutoring pre-calculus for five years.

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AP calculus and AMC 10