No surprise again that there is noting out there that could be called "standard" There nay be commonal itties due mainly to where teathers received their trainig. Published materails undoubledly also create practice similarities. But there may be as many modles out there as there are teachers. If modles they can be called. The lists of recommeded practices that have been produced may be sound. But it is arguable as to whether they are comprehensive and systematically interconnected enough to qualify as a modle. There appears to be no theory or rationale that would unify them. Nor have data supporting their validity been advanced.