Because of the needs to understand what's nature is made of : its constitutive, forces, interactions but also tools to study it ... I would like helping a pupil from secondaire I and II to help them understanding physics and mathematic class in extra in parallel of their class. Also I would like helm them doing their homework. I already help siblings for their homework (bacalaureat/Maturité and secondaire I brevet) Dans le besoin de comprendre de quoi est fait ce qui nous entour : la nature, ses forces et interactions, mais aussi les outils pour l'étudier, j'aimerais aider des élèves du secondaire I et II à comprendre la physique et les mathématiques en parallèle de leurs cours. Je souhaiterais aussi les aider à faire leur devoir.