The problem with science is often abstraction. Some subjects are difficult because we do not make the connection between them and what is really going on or what it will be used for. My goal is to explain to you the "why" by detailing examples to understand the theory. Whether in mathematics, physics, analysis, algebra, probability; I will explain to you, finding suitable examples, what blocks and make sure that you really understand by pushing the exercises a little further afterwards. We will also review the theory, sometimes difficult, but so important for learning the rigor of mathematics.