I have to start by admitting something to you: in high school, I had very bad grades in math. I spent a long time telling myself that a scientific career was not for me. When I decided to try engineering anyway, I had to relearn everything from scratch, by myself. At the beginning I would have been quite incapable of passing a second humanity level exam. Months of hard, self-taught work pushed me to develop a working method focused on deep understanding of a subject rather than just withholding information. Through this private lesson project I dream of being the person I would have needed a few years ago, a person who in addition to allowing the student to succeed, transmits the motivation to learn. "If you give a man a fish, you feed him once. If you teach him to fish, he will eat all his life."