I review the work.
I ask the student to show their reasoning. A missed question may reveal a gap in algebra, a grammar rule to review, or a detail they read too quickly.
I’m Ethan Bashkansky. I teach SAT/ACT, math, writing, and chess one to one, online.
I’m a UW mathematics graduate, 99th-percentile SAT/ACT scorer, and USCF National Master.

I use official practice tests to find gaps in grammar, reading, and math, then assign work on those specific skills.
Explore SAT & ACT tutoringAlgebra, calculus, IB Math, AMC 8/10, and coursework beyond.
Explore mathSchool essays, application essays, argument, grammar, and revision.
Explore writingYour own games, tactics, openings, and endgames with a National Master.
Explore chessReading, vocabulary, math, and writing for school admissions tests.
Explore school test prepAlso here to help with PSAT preparation and physics. Ask me about your subject.
I look at the student’s work before choosing the next assignment. That might mean reviewing semicolons, graphing a system in Desmos, or revising an essay’s supporting evidence.
Lessons, homework & follow-upI ask the student to show their reasoning. A missed question may reveal a gap in algebra, a grammar rule to review, or a detail they read too quickly.
I explain the concept and work through an example. Then I ask the student to solve a related problem and explain each step.
I send a lesson summary and specific homework. In the next session, I review the questions that still need attention.
I entered the University of Washington at 16 and graduated with a mathematics degree at 19.
Official practice tests, targeted assignments, and section-by-section review.
Ask about test prepCourse support, essay revision, or chess instruction with a USCF National Master.
Ask about lessonsMy 60-minute lessons often run 65–75 minutes when useful, at no extra cost. Ask me about longer sessions or small-group lessons.
Practice → official · January–April 2021
I got a 1550!!!! Thanks for all your help!!
Practice → official · Summer 2022–Mar 2023
Nicole said that it was great, she loved the way you explained everything and wants you to continue teaching and preparing her for the SAT.
Nonverbal: 99th percentile · February 2022
Alisa is always happy to have a class with you even in the early morning. And after class she is in the best mood! I’m grateful for that!