I'm thinking about writing a book to teach kids philosophy, but I've run into a bit of a writer's block from the onset. I'm not sure whether to start with epistemology(theory of knowledge) or metaphysics(theory of reality). At first I thought about starting with epistemology, then metaphysics, on the grounds that people base their views on reality around knowledge. But then I realized that one's understanding of reality will often influence how they perceive knowledge. Which one is better to start with? Or perhaps is starting with one or the other inaccurate and should both be introduced at the same time?