On many threads, I have noticed that MNetters who are not teachers and not related to teachers have asked why the profession is striking today. Many people are under the impression the dispute is about performance related pay and pension ages. That's part of it, because ultimately that's really all teachers can legally strike about, but in terms of the strike's bigger picture, it's not the whole story. This document from the National Union of Schoolmasters/Union of Women Teachers (NASUWT) sums up the general position comprehensively for a general audience. Incidentally, the NASUWT and the NUT (National Union of Teachers) make represent about 90% of the teacher workforce and they have joined forces for this strike, such is the strength of feeling.
NASUWT document