SVT, or Science of Life and Earth (biology and geology), is a very specific scientific subject. It requires students to have both good scientific fundamentals (logic, rigour, depth of analysis), and an understanding of phenomena affecting the Earth, the human body and the planet. But it also requires an ability to reuse all of this within a well-written development, so a certain ease in argumentation! Our home lessons allow support adapted to the student's objectives: face comprehension difficulties, improve the application of knowledge in exercises and homework, gain in efficiency thanks to the ad hoc methodology. The student may encounter difficulties in understanding or applying the course from middle school. Nevertheless, in high school, the pace quickens and the requirements increase, especially with the SVT specialty in first class.