Hello, if you are interested in maths and/or physiques classes (by zoom), you're on the right page! To introduce myself, I spent my first two years of bachelor at the EPFL in Mechanical Engineering. I am now in erasmus, so i am forced to do courses only per zoom. I always loved maths and to explain maths/physiques concepts. Thank you for telling me your studies level. Generally, I prefer to have the chapters/exercices you want to practice in advance, so we don't lose time :).