Introduction: I provide SAT preparation and private tutoring in mathematics of all levels, regents, ACT, GRE, GMAT, and high school, college, and graduate courses.
I am the founder of "Get 800," and author of "The 32 Most Effective SAT Math Strategies," "320 SAT Math Problems Arranged by Topic and Difficulty Level," The "28 SAT Math Lessons to Improve Your Score in One Month" series, the "SAT Prep Official Study Guide Math Companion," and the "ACT Prep Red Book."