French can be hard to learn especially if you don't have some motivation to do it. This is why I think that helping people learning it can make people appreciate the process of learning. I also did a Scientifique Baccalauréat (Math, Physics and Chemistry) and I study Economics and Management, I'll be able to teach Math until A-Levels. For History, it is one of my passion especially French History as it is the one I learned through school but I'll be able to adapt to the lecture your child follow