What you are committing to, what I am committing to, and what happens when something changes. Written to be read once and understood.
Last updated 2 August 2026.
One to one teaching in mathematics, physics and space exploration, delivered online by the founder personally. Classes are not delegated to anyone else. Where a programme includes written progress reports, those are provided every two weeks.
Fees are quoted per programme and are published on the programmes page. Families outside the United States are invoiced in their own currency at the rate shown at the time of invoicing. Fees are not increased during a programme that has already begun.
Tell me and we stop. Unused classes are refunded in full, at any point. There is no notice period, no administrative fee and no argument. A family that no longer wants to be here should not be here.
No grade is guaranteed. Any educator who guarantees one is either lucky or selecting students who did not need them. What is guaranteed is the standard of the teaching, the honesty of the reporting, and that you can leave at any time.
There is one engineer and a finite number of hours in a week. Places on the year long programmes are limited by arithmetic rather than by marketing. If a programme is full I will tell you so rather than take the payment.
Materials written for your child are yours to keep and to use. They are not to be redistributed or resold. The Practice Engine is free to use and requires no payment at any point.