FLEX Online SAT Prep

FLEX Online SAT Prep prepares students for the SAT through:

  • 16 Video Lectures
    (8 English, 8 Math)
  • In-home practice with video solutions
  • Full length SAT Practice exams
  • Custom FLEX Score Reports
  • The conveniences and flexibility of a fully asynchronous program

Are you looking for a smart way to prep for the SAT? 

Are you looking for strategies that lead to results? 

Are you looking for a flexible program to meet your needs?

Why use the FLEX SAT Video Program?

FLEX Online SAT Prep is an asynchronous program developed by FLEX’s top teachers, Ms. Yoon and Mr. Philip. FLEX Online SAT Prep offers students a customizable SAT program which enables students to enroll in the full program or pick-and-choose from features which include:

  • Lectures on key concepts, proven test-taking strategies and in-class assignments
  • Targeted practice problems with solutions
  • Full-length SAT practice exams
  • Custom FLEX score reports to analyze progress

How It Works


Eight Video Lectures per subject (English and Math) taught by the two instructors who created the FLEX SAT English and Math Curriculum.


Accompanying homework assignment for each lecture, with video solutions for additional insights.


Three full-length e-proctored diagnostic tests from the College Board, including the optional Essay section, with FLEX score report.

FLEX Online SAT Program Courses

SAT Math

SAT English

Meet Our Instructors




Ms. Yoon

Yoon Choi

Master instructor and FOP Director of English Programs Yoon Choi has helped thousands of students overcome their fear of the verbal SAT through proven strategies and targeted test prep! Yoon graduated from Johns Hopkins University (BA, MA) and Stanford University (MA, Stegner Fellowship). She has over ten years test prep experience, with students averaging an increase of 140 points on the verbal SAT.

Mr. Philip

Philip Vuong

Student favorite, FOP Director of Math Programs Philip Vuong brings his passion for math (and Sour Skittles) to life, whether in the classroom or on the screen! Philip graduated Stanford University with a BS in Math and Electrical Engineering. With over ten years experience teaching SAT, he boasts a track record that’s hard to beat. In 2019, 100% of his students scored 750+ on the SAT.

Our Pricing

SAT Video Lectures

$399 / subject

8 Lectures / subject

Taught by FLEX’s top SAT English and Math instrutors, Ms. Yoon Choi and Mr. Philip Vuong

Homework Solutions

$99 / subject

Practice problems to reinforce each video lecture.

Video review of every question and answer by Ms. Yoon Choi and Mr. Philip Vuong for additional insights

SAT Exam Practice


3 Full SAT Practice Tests from the College Board, including Essay Section.

E-Proctor to simulate test day conditions and experience.

Personalized FLEX Score Report