As an associate teacher of upper secondary education (chemistry, physics and biology) and a bio-engineer by training, I offer individual remedial and / or advanced courses for high school students in mathematics and science. My goal is to help students succeed in these subjects and to prepare them for exams at best. The personalized follow-up of the students makes it possible to better identify the difficulties they face and thus to be able to find a suitable learning method. I also hope to give students a taste for mathematics and science, which for some people can sometimes seem scary. In addition, being also a bio-engineer, I propose an integrated approach to math and science through concrete examples related to today's world.