First of all, who am I? I am a dual engineer by training, and I was able to train at a very high level in hard sciences through academic exchanges and extra training: preparation for the aggregation, exchange at EPFL, UC Berkeley, etc. I taught in high school for two years in Term Spé, 1ère Spé and Seconde, and I was a kolleur in CPGE in MPSI and PSI for a year, at a rate of 5 hours/week in order to prepare students for the competitive exams for prestigious grandes écoles: l'X, ENS... Throughout my training, I always had great academic skills and strong learning abilities, because I completed my entire schooling at home, via the CNED. Finally, I have good experience in competitive examinations and high-level academic training: doctorate at the X, admitted to the ENS, master's at the EPFL... you can trust me  So I have a strong experience in teaching and science in general, and I have already supervised many students in private lessons. The results were always present and impressive, depending on the student's confidence. It's simple, if you follow my advice, I guarantee that you will succeed in physics-chemistry and science throughout your schooling! I just ask you to give me time to adapt to you and your needs. But, I will also ask you: work, diligence and courage. We will discuss all this together during the first class, don't be afraid! You will be able to ask your questions on all points: CV, methods... My packs and my methods? My method can be summed up in one point: excellence at all costs. There is no way I'm going to waste your money by helping you cram without understanding anything. It's effective in middle school/high school, but useless afterwards.