My mathematics courses are aimed at pupils or students at all levels, more particularly at students in sectors requiring a high level in mathematics. It is possible to provide refresher training for students in difficulty as well as reinforcement or preparation courses for higher classes (for example, for a final year student wishing to prepare for preparatory classes). The duration and content of the course depends on what the student is looking for. Experience and the habit of giving lessons allow me to quickly identify the student and offer them a suitable teaching method: is it more intuition or writing that is failing? How to get started when faced with a question? Once you have an idea, how do you formalize it properly? So many questions that are rarely discussed in mathematics classes, both in high school and in higher education.