I keep trying to explain.
Teachers have a responsibility to plan and deliver a good education for all children. Teachers need to make sure all children make progress. They, with leaders are monitoring this progress for all children. If progress slows or the child is not making progress teachers adapt the curriculum and progress is assessed again. It maybe interventions are put in place or behaviour support is sought. dependent on need. Again all checked to see if this has a positive impact on the child’s progress.
Specialists may be sought to help teachers plan the support for children. All to help the child.
If this doesn't work, we will be questioning why. Through all of the meetings with parents, we will be discussing the child’s progress and support. We will, be seeking the views of parents.
All of this is the teachers job.
What we don't do is make a diagnosis. We do not have the relevant knowledge but supply what we do know into the diagnosis decision making. The diagnosis is made by a team of experts over a period of time. Teachers feed into it but are not qualified to make a diagnosis.
Think of it just like an ill child, as a parent, we might know that a child is hot, we might see a rash or see that a child is thirsty or not eating, we might support the child with water, cream, or a cold flannel. We might ask a friend, what they think and try this. This might work -all good.
But it might not and we will ask for medical help. The medical staff will carry out more tests, ask for reports, discuss further with parents and make a diagnosis as we, as the parent, don't have the medical expertise diagnose what the illness is.
As I said above, and gave the link, the SEND Code of Practice sets out what the schools responsibility is in much more detail than I can here.
Maybe the confusion is around the number of parents who say ‘my child has ADHD or ASD’ when in fact this is not diagnosed,, just something a parent suspects or perhaps something showing developmentally. ( schema are easily confused with ASD traits, for instance )