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Subjects Taught

Chang Wook S.

USD $70/hr


(University of Pennsylvania, 2020)


  • Total years of tutoring experience: 4+ years
  • I've tutored math, physics, chemistry, and biology for 3 years through my high school Math and Science Center
  • I did private tutoring in math for the second semester of my high school senior year.
  • 2015: AP Scholar with Distinction
Trial Lesson:
For every new tutor you pair up with, your first 30-mins are free, guaranteed.  We want to make sure your tutor is a good fit for you.  Book here.

Tutoring Example Video

Watch Chang Wook S. teach trigonometric substitution from AP Calculus BC

Hourly Rate

Hourly Rate (USD): 

24+ hours notice:
No Fee

0-24 hours notice:
100% hourly fee


Why Chang Wook loves teaching:
I wanted to tutor my AP subjects because I am passionate in those fields, and have experience tutoring those fields as well. Tutoring students provides a fantastic opportunity for me to use my expertise and passion in these subjects to not only further my own knowledge, but help other people improve their knowledge and skills as well.

An interesting fact about Chang Wook:
In addition to AP Calculus, I've also learnt Multivariable Calculus, Linear Algebra, and topics in pure math, participating and scoring well in math competitions such as the The American Invitational Mathematics Examination (AIME).

Languages Spoken:


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