I like to work by objective rather than by hour, and to guarantee my skills and motivate students, I fully reimburse the costs incurred if the main objective is not achieved, whether in terms of validation or results above their previous notes. My main goal is to see my students succeed by developing their understanding in interesting ways. As a tutor, I motivate my students, guide them in the direction of their studies and beyond, while providing them with essential support for a true understanding of key scientific subjects: physics, chemistry, mathematics and computer science. (I work with a Galaxy Tab S7+ tablet)