What -if anything- can I say to the school about this?

Speak to the school and they will clarify it.

If you haven’t read it, Clawed, you might take heart and be inspired by what another poster Vebrithian managed, though it is long. Even though it may not reflect an identical there is so much useful thinking on it. I think there were two threads in the end.
Sex not gender, No Outsiders changing the Equality Act, DepHead/DSL captured

You haven't been confrontational at all. Well done for sending the email

There’s “being confrontational”, and there’s “speaking out when you have serious concerns about what your child is being exposed to at school”. You’ve done the latter - well done.

Well done OP. Every parent that contacts schools represents thousands of others who are worried about this dangerous gaslighting of children.

This is fantastic to hear.

Parents should always speak out to the school on behalf of their children. The children can’t - the younger ones especially don’t yet have the critical thinking skills to question whether what the teacher is telling them is factually correct (before any ethical considerations as to whether gender ideology even has a place on any school curriculum).

I’m happy to read about more and more Safeguarding Leads being peaked. They need to check the materials/organisations being brought into schools in order to protect school children from being exposed to entirely unsuitable, biased “information”.

Agree with @Boomboom22 - we do have power as parents.

My children's school head was all 'be kind' but has radically changed tack, particularly on social transitioning children, and is now on board with caution and pushback.....I wrote several times about the material being used and that children were being taught incorrect science (that there are 3 sexes), pointed out where the resources being used were not compliant with DfE guidelines and that for the gay children in the school, they were effectively being told that their identities weren't valid because they were in fact trans, not same sex attracted.

Please do complain. As many parents as possible should be getting involved
As a pshe teacher I can tell you our interventions are very much making an impact. This is peaking safeguarding leads left right and centre. Keep on raising awareness on the ground. Often these are taught by non specialists without training and some teachers are very much on board, some have no idea of the consequences of what they teach
Do raise the cass review too
People are busy but parents have so much power in schools honestly. Make governors aware etc.

I think if schools are insisting on indoctrinating our kids in anti-science, we have to get in first with the pro-science, pro-biological reality message.

I think you should forward that leaflet to Miriam Cates MP and Rishi Sunak and tell him to get it sorted out NOW. This is child endangerment happening on his watch.

It is outrageous to be worrying children with such unnecessary made-up concepts. Let's face it most adults have trouble getting their head around this genderwoo. I would withdraw my DC from school that day if at all possible and tell them that no human beings can change their sex.

Hi Op, yes you’re in a position to ask the school when specific subjects are covered. You can also ask for your dc to be excused from the lesson.

I know it’s a bit different but both mine are excused from healthy eating lessons (after D developed anorexia in primary school) and no questions were asked really.

(Unrelated but my favourite was when my DD7 was excused from healthy eating lesson only to be looked after in the next door class, where they were watching a film and all eating sweet & salty popcorn 🤦‍♀️)

I would definitely ask more questions I’d the schools.

The Schools Minister himself has said parents should complain rather than withdraw.

https://schoolsweek.co.uk/complain-dont-withdraw-kids-over-rshe-concerns-says-gibb/

I’d be keeping my child away.

Gender questioning children are not trans children.

Well said. Sadly too many schools have outsourced their critical thinking on this- not surprising given the capture at Union, DfE etc level. So it's now up to parents to step by step challenge certain schools about their delusional beliefs about gender / socially transitioning children etc and to insist that they stop teaching gender woowoo as factual.

Which is precisely why you need to challenge it.

It’s okay to be “that parent” - it means you care about what your child is being exposed to at school.

A transgender person doesn't feel their body matches with their gender.

Some transgender people choose to change their appearance or body so their gender matches with how they feel.

This is the bit that would bother me and that I wouldn't want adults in positions of authority telling my children.

It's the slippery use of "gender" (common in transgenderist propaganda[

Most youngish kids don't know what "gender" means. Come to that, a lot of adults don't either. And here it's being used with a lack of clairity that is at best unhelpful and at worst deliberate obfuscation.

It also starts from a position of total acceptance of trans / gender / transgenderism as a "thing" that is generally agreed upon / understood by everyone in the same way. When of course transgernderism is a socio-political ideology. The tone is factual but the content is anything but. It's propaganda.

I would say exactly that to the school and I would ask them not to entertain the idea of putting confusing ideological statements to children in their place of education.

TBH I think this is pretty tame and neutral.

There is advice on Safe Schools Alliance's website to help with approaching the school about this.
https://safeschoolsallianceuk.net/schools-resources-and-policies/

I’m about to enter into the fray with our school. They are using 1Decision to deliver the PHSE programme. On the face of it, they seem ok, what I’ve seen from the short clips from the videos goes as follows: girl/boy, vagina/penis - so far so good. But the full videos aren’t available.

School sent out the outline of the programme and invited parents to view the teaching materials at school and become part of the PHSE parent focus group. I naturally contacted the school and said I’d like to see the materials and be involved. At first they seemed really keen for me to be involved and promised to send dates when I could go in asap. Two weeks later nothing, despite a reminder! They might be really busy with it being the end of term, but I also make no secret of being a feminist, so I’m slightly suspicious.

I’ve done a bit of my own research on 1Decision and found a questionable blog about LGBTQAI + and the following from 1Decision, note Early Years:

‘We believe in the importance of comfortable self-expression, which is why our Early Years Programme includes a non-binary Rainbow Drop in our storybooks: Rainbow. We believe in helping children to understand that people identify in ways beyond male and female. Merely acknowledging this is a great start to building an understanding of the modern world.’

This naturally has me concerned as the website content seemed ok, this stuff seems to be sneaked into blogs.

They say they are teaching it because of the Equality Act.

In the Equality Act, it is gender reassignment which is protected.

As no child can legally have their gender reassigned ie get a Gender Recognition Certificate, there is no need to teach this to under 18s.