Solving mathematical and scientific problems requires key techniques such as a thorough understanding of the problem, mastery of fundamental rules, and a critical and logical approach. In this respect, using appropriate tools can simplify exercises that may initially seem complex. This course is a mathematics support course designed to help you strengthen your skills in this subject by developing these learning methods. Furthermore, it is suitable for all high school students as well as university students up to the undergraduate level. The course is taught in French or English.