The course takes place in 3 major stages: verification, consolidation and deepening. First of all, a series of questions and answers to determine the shortcomings of the student on the previous courses, the subjects that he did not understand well. Then, personalized exercises of direct application of the course will be proposed with a follow-up at the writing level. Finally, depending on the progress and difficulties of the student, I can propose deepening exercises where the student will have to work independently for 5 to 10 minutes then I will question him on his reasoning and try to make him understand why he did not succeed or how he could improve his work by giving him tips and tricks. Every lesson and the corresponding work will be noted to follow the evolution of the student. I have already followed two high school students during 2 years, for them to achieve the baccalaureate and to have the university the wanted.