I'm thinking of writing a paper on a new way of deriving the conservation of energy from symmetry principles and the Galilean transformations, but I'm not sure where to publish. Taking a look at AJP, it tends to be there for teachers at universities writing papers on how best to teach a certain topic, and to clear up misunderstandings. On the other hand, my paper certainly isn't to do with cutting edge physics, but merely another approach to something that is understood in other ways, and therefore not worthy of being published in Physics review, say.
So where should I publish?
More generally, how are the papers physicists publish mainly categorised, and which main journals publish papers in these areas?