CAMom, maybe I'm misunderstanding your point or maybe schools where you are are very different from schools where I am. Where I am, in primary schools, almost all teachers teach almost all periods - teachers do not have significant amounts of time during the school day when they are not teaching. To remove this constraint would make schools more expensive, because they'd have to appoint more teachers. So however you juggle children and classes and teachers, if you teach maths to all the children in the school at the same time, then almost all of the teachers employed by the school have to be teaching maths at that time. So the only way teachers having multiple specialisms helps is if almost *every* teacher has a maths specialism (possibly along with some others). That is inconceivable in the UK, at least as a general policy that could be applied in all schools: most teachers do not have the level of maths confidence or competence that would let them have such a thing.
