Premium SAT Math Prep by a Yale Math Major

Exceptional Scores

Get to Know Me

I Help Students

get high SAT Math Scores

in half the average time

with all the right resources

Ethan Aggor

B.A. Mathematics & Economics, Yale '26

Why Greenmarks?

Math Done Right

Here’s the secret to getting really good at math…
More Problems = More Success

The Math 800 Masterclass

  • 6-week Curriculum

  • 6 Hours of Lessons per Week + Dedicated Office Hours

  • 800+ Total Problems Covered

  • Targeted Weekly Problem Sets

  • Full Walkthroughs with Every SAT Practice Test Done in Class

  • No Questions Left Unanswered Policy (even it goes over time)

  • 24/7 Q&A Discussion Board with Google Classroom

Two Gifts For Your Student

The Math 800 Playbook

(Coming soon!)

Math Cheat Sheet

(Coming soon!)

Let’s Get Started!