AIBU that the other children are not my responsibility

I would set out clearly in writing why this is all inappropriate and unacceptable. Email (for clear paper trail) either to the teacher alone or both the teacher and HT. Could also request a follow up in person with both of them there. Then there can be no confusion and if there is any further pushback from teacher it can be set out openly and transparently with all parties present.

Did they do a settle in time? My DD has 3 different 1:1 tutors at home via the school (independently hired by the school through an agency), they're brilliant! Each teacher and DD were given a few weeks to see how they felt about working together and they all settled in and have stayed for 1.5 school years so far. They'd never complain about that as they have loads of 1:1 children in various states of being able to complete lessons or even attend ... they're all very helpful, as were the other ones provided by the LEA.
Perhaps ask if your DD can have a different teacher as this one clearly isn't cut out for 1:1

This a hundred percent

This is very much out of order by the teacher. She shouldn’t be saying no. Big discussion with teacher and HT needed.

We've had the same problem in the past. My dd had a 1:1 fully funded through the LA. All went well in the first tear but then the next year the teacher couldn't seem to grasp that this person was solely employed for my daughter and not by school. But thankfully my dd wonderful 1:1 put the teacher straight. Could your child's support 1:1 talk to her teacher?. I'm glad to see you've got a meeting in place to try and get the issues resolved.

YANBU at all. I'd spell out very politely one more time in writing to the teacher that the 1-1 is funded for your DD only, and as such isn't available to help other DC unless it benefits your DD. And then if that doesn't work, speak to the head.

Or don't
I imagine OP has enough on her plate and doesn't especially want to act as an unpaid assistant for other parents

Quite. I almost had to lie down in a darkened room for a year after our SEN tribunal battle. I even took an easy secondment for a while. I was so frazzled.

Are you fucking kidding me?

This teacher is incredibly fortunate that I'm not the SEN parent because i would have gone nuclear by now.

If she needs help she should ask the Head for it.
If she wants to advocate for the other SEN kids she can do that within the correct processes.

But she is 100% completely out of order to challenge, disrupt, or make any comment on your child's 1-2-1 which you've fought so bloody hard for.

I'd be having a word with teacher and spelling this out in no uncertain terms but I'd also put in writing the issue to the SEN and be clear that this one teacher his having a negative effect on what has previously worked so well.

I've been through this and I sympathise.

My friend had the exact same problem as you, so you are not alone.

My friend fought long and hard to get funding from the LA for a 1-1 support worker for her son, at school.
Same thing happened, and the teacher started to use the support worker as an unofficial TA for other children.

My friend really had to put her foot down and complain, as it was affecting her son.

Listening to my friend, this is my advice.
Do not feel guilty.
Yes, there are problems with support in schools and yes, teachers need more support. But that isn't your fight.

You are your daughters advocate and you have clearly fought long and hard for this funding.
Unfortunately, as you are now seeing, you also need to keep fighting to keep it and make sure others dont take advantage of it.

My friend said to me that she understands the frustration that other children dont get the same support and she is more than happy to help other parents to get the funding for their children.
But, she will not be sharing hers sons funding.

Hello, teacher here. The teacher may have been 'allocated the ta' without being told how she is funded, and may therefore assume she is available to support all students. She may have been fobbed off with a wishy washy statement by senior leadership, implying she has a class ta (when she clearly doesn't) because they don't have the budget to fund other support and are hoping to get away with using your daughters ta to help. Or she may have been told, and not listened or not understood the implications. This is not a common way of having tas in school, so she may not have come across it before. None of this is to excuse the situation as your daughter absolutely should be getting the support you have fought for and she is legally entitled to. I think I would first make sure that the teacher understands (you shouldn't have to, but I would start here). Arrange a meeting with her, go through exactly what the entitlement is, and at the end thank her for her time, and say that you will send her an email, saying thank you for the mweting on x date, and confirming everything you have said to her (including a copy of the ehcp if possible). That way you have a paper trail. If there is an issue with lack of understanding or information being passed on, this will fix it. Then, if there is still a problem, go to the head and ask for a meeting - they can't say speak to the teacher, as you will have evidence you already have. Do the same thing with them. If there are still problems, go to the governors. Hopefully, you won't need to do all this. Good luck. Your daughter is absolutely entitled to her ehcp allocation, and the failures in the education system are not her fault, and shouldn't impact on her . Much as I have sympathy for the shit teachers are dealing with currently, this should NOT be passed on tonyou and your daughter.

They should never be taking away from your DD's provision, that's for her not the other DC. Occasionally my DS's 1:1 will also help other children but only where this also benefits DS (eg. If it's group work, my DS might need help with the social side, but would be grouped with DC who would also benefit from having an adult close by)

Oh I fully agree. I was just wondering if the situation is being misread.

But the teacher should know, so no excuses there.

It doesn't matter what the other parents think. The echp is a legally binding document. Period.

Raise with the teacher directly, if no change then raise with the head or head of year. It doesn't matter what she thinks, she doesn't get a vote. If she's stopping her interventions I'd be asking for an explanation every time.

Or don't
I imagine OP has enough on her plate and doesn't especially want to act as an unpaid assistant for other parents

It's not the OPs responsibility to help other parents apply for one to one's, all information is available online and the school SENCO can help. It's a lovely idea but I'm sure the OP is a busy parent and it's not possible for her to go around working out which mum's have SEN children and who does or doesn't have a statement, let alone then try and help them all

If the interventions are in the plan, and tbh even if they aren't explicitly, surely the teacher can't stop it?

This

She and other parents may think the school is paying, which may partly explain it. The school need to be reminded she is strictly there for your kid. Sorry you need to fight this when you've already had to fight so hard.

But I do also sympathis with the teacher a bit, she clearly needs support with the class, but not from your TA.

Could you offer to help the other parents with their applications for support? You were very successful and they might appreciate you helping them get the same level of support. This way you are helping them but not at the detriment of your daughter?