1. My Rate : Half of C2 Education.


Private 1-1 Lesson

from $100/hr


Group Lesson



Skype Online 1-1 Lesson : (Flexible, Cheap, and One hour lesson available )



Skype Group Lession : You can meet the best student around the World.

From $300/10sessions.



Statistics Consultation

Payment is available through the paypal.


Click here to compare my price with other institution such as Kaplan or C2

  ( I charge only less than 33% of their Price )


* I will charge additional cost for traveling.


My approach is easier and less complicated.

LOOK how my approach is different from others.

1. GMAT Official Book  
2. Veritas Prep Book  
3. Kaplan Prep Book  

2. Teaching and Educational Background


I majored in mathematics education in Seoul National University.

                                                PhD.Studied in University of Iowa.

I wrote several mathematics problem books.(click this)

I have taught mathematics in public high school in korea over 20 years.

I have a California teaching credential for secondary mathematics.



3. Where do I teach?


I mostly meet students at the public place such as...

Any Public Library




Indian Prarie Library in Darien.


Grace Baptist Church in Darien.


Korean Culture Center in Wheeling.




I am a professional math tutor who has helped hundreds of students. Many of my students have achieved success beyond what they ever thought possible. Numerous students have gone from failing, to getting A's on tests, in as little as two sessions. The majority of my students from the 2009-2010 school year achieved A's in their math.




Ben taught me more in eight hours than I learned in two years in high school. I recommend him to anyone who wants to study math, whether for a short time or a long time, for school work and for test preparation.
Ben will determine your specific needs, so he knows how to work with you. He starts by explaining the simplest models of whatever math topic you are studying, so that you can recognize the pattern and apply it immediately. He can explain a problem several ways, so you can understand the problem better and know which method is the most useful for solving it. He imparts the fundamental principles of a topic with absolute clarity, so you will not be confused.
Ben is a welcoming and refined person. Whilst teaching, he is always patient and calming. You will learn very fast—but you will never feel hurried.
As Ben says, ‘To know, and to be able to teach, are two different things’. He knows the subject, and is the best math teacher I have ever met.
Michael Sussman,
Addison, Illinois