Ithink
In the short term, stop criticising and second-guessing the teachers and the school. I just skimmed throught the thread where a parent is complaining about the school's handling of a fucking bomb. There is no possible way a school can have a plan for every contingency.
It should be a prerequisite that schools have emergency evacuation procedures in place.
Start putting the onus on your child, and let the school management team scrutinise the teacher
I do, where responsibility lies with my child. However teachers are not beyond reproach.
It is impossible to remember every one of the needs (both real and imagined) of every child in every class, so, instead of getting directly through to the Head, be a bit forgiving if a teacher makes a genuine error.
I thought you wanted the parents to let the school management team deal with the teacher? So who can parents approach, regarding their child's progress? You seem to be of the opinion that parents should not be allowed to question a school's actions.
Assume that the teacher knows more about education than you (they have trained in it, after all) and trust them to teach your child in a way they, the expert, have
But they are not necessarily the 'expert'. Especially in the case of additional needs few have had very much training at all. Parents come with a huge range of qualifications. There could be child pschologists, paediaticians, lecturers on teacher training courses, teachers and head teachers. Added to this they will have known their child for a lot longer than you.