Mathematics teacher for 16 years, I have taught in several international establishments (France, Belgium, Netherlands, Germany, Egypt, Morocco), at all levels (secondary and higher education). I have often supervised and coached students outside the professional framework and know the students' needs well (organizational difficulties, drafting and reasoning problems, understanding of course concepts). METHODOLOGY: I favor an intuitive and popularized approach to abstract notions, supporting them with digital illustrations and animations to better understand them (especially between the 3rd and the 6th). Before starting a course, I generally take stock of the difficulties and do not hesitate to go back to previous notions in order to consolidate them. I also offer methods and tips to solve the basic exercises but also to learn to consider solutions for more complex exercises.