This is the traditional approach, focused on the space movement of a single particle in the non-relativistic approximation. -But (after I learned some more advanced aspects of quantum theory) I found and wrote a new way to introduce quantum physics, both more general and simpler, making it look more intuitive while remaining accurate. Moreover to make it look even more intuitive, I found convenient to start by metaphysical preliminaries on the mind/matter duality, leading to the interpretation of quantum measurements as made by conciousness.