This is more a relaxed form of "schooling" at home. Subject resources are gained from more than one source and learning can take on a form of unit studying if so wished, For example, your son likes trains. Get fictional readers about trains, study the technical and scientific way they work and get history books about trains. You get where this is going? You centre all the subject choices around your child's interest. Unschoolers do not follow a set curriculum but rather see where learning and circumstances guide them. With my youngest daughter I have a mix between set work books and books pulled from other sources, a form of unschooling. My oldest is doing a set curriculum, I made this choice from Grade 10 for the structure and discipline needed for gaining a matric certificate. There are of course other ways of gaining higher education without a matric certificate, the choice is up to you and your child and their future holds.