Thank you, I don't need to work financially and the school know that I am not looking for paid work.
I know how much schools are under pressure financially. This school is complicated re staff as they will not recruit LSAs as part timers or job share and the only jobs available within school part time are 1 to 1 higher needs children such as those with physical disabilities like cerebral palsy where there is an element of personal care too.
This means they have a pool of casual LSAs to pull from (lots of them my friends) who they know only want to work certain days or only 4 days maximum. They cover long term sick LSAs or on days where they do tech where you need more than one adult in the class.
Having been at the school a long time, I am aware of when they consider it necessary to call in a casual LSA. On the days some of the very long term staff don't work (before the enforced 5 day week,) they will not hire or pay a casual LSA. The LSAs that work a full 5 day week and are not cover supervisors are specifically placed in the classes with children on the Thrive program or who are part of the Nurture group. That way they have an LSA all day with no cover supervisor duties.
So I am categorically not stepping on anyone's toes nor preventing someone being paid. I have already spoken with several LSAs who have no issue with me being in school for a day. And yes, they would tell me straight to my face if it was an issue. In fact when I was asked to do an extra thing I checked with the LSA first.
Marking wise, it is maths or simple literacy where they insert an adverb into a sentence, or underline the noun. I am not assessing their levels. I have no experience how it works in other schools but this one is different judging by the comments on here and the student teachers we have in. The staff help each other out, it isn't an each look after their own mentality. If I am asked to photocopy a sheet for extension work mid-lesson I go and do it. It is for the good of the child/children.
I bring in cakes and biscuits and make everyone drinks and wash up. It is a large primary and lots of volunteers want nursery or reception experience. I like both KS1 and KS2 and have worked in both.
I just didn't know how it worked in secondaries because I have no friends who are teachers or LSAs/TAs in a secondary. But it is probably best that I stick with the primary then.
Thank you to everyone who replied.