While medical-style guidelines may seem to have come from God, such guidelines, even in medicine are often multiple and contradictory. The “cookbook” teacher will always be chasing the latest guideline, disempowered by top-down interference in the classroom.
In medicine, over five years, fifty percent of guideline recommendations are overturned by new evidence. A comparable situation in education would create unimaginable turmoil for teachers.
A summary of a paper ‘A broken paradigm? What education needs to learn from evidence-based medicine’ by Lucinda McKnight and Andy Morgan