I'm a mathematics major who has taken a few physics courses and the presentation in physics texts bothers me.
In mathematics, the standard format is a theorem-proof repetition with some discussion. Axioms and definitions are laid out and you develop the theory from them. I understand that physics is an experimental science, but the theory behind undergraduate physics is a well-developed and coherent theory. It seems one could postulate some definitions and experimental facts and derive, say, classical mechanics from them.
But physics texts, in my limited experiences, don't do this. They mix derived results with experimental facts in a sort of ad-hoc discussion, which leaves me with no clear idea of when certain theorems are applicable and when they aren't.
If this is too abstract, I can give some particular examples from books if needed.