Think PPs have answered your question for me excellently.
Dd's sister who was 9 at the time came home from school to say a school friend had told her men could have babies. She soon put them straight on that one. No science deniers in this family. Even ds knew at 3 that he was a boy because he had a penis.
I like the idea of her taking notes. I'm sure she's on the spectrum though and what is said is often not what she hears so will be difficult to get anything from her that actually was said rather than what she interpreted.
I wonder if school would provide any further information on the actual content.
I like the idea of the 3 things too. That one is more achievable for her I think.
It just pisses me off so much that this subject is being pushed at them so young. LGB yes, fine and good and necessary. But trans? No. It's bollox and they know it. Why is it included under sex ex rather than mental health if they are discussing gender dysphoria?
Maybe I'll encourage her to come up with some difficult questions 
so miss, are you saying that we can biologically change sex?
How does that work then?
What if we change our mind?
Could it be reversed?
How would a trans woman get pregnant seeing as they wouldn't have a uterus or any of the biologically necessary parts and systems to support a pregnancy?
Do you think it's ethical sir to give children hormones than render them infertile before they have fully developed brains and know who they really are?
My mum didn't figure out who she and make peace with herself was until she was 40 miss, what would have happened if she'd have decided she was really a boy when she was 12? Then realised later she was just rebelling against gender stereotypes?
What do you mean by gender sir?
Miss, do you think we are defined by societal stereotypes or is who we are down to personality?
Sir, if I decide I'm a boy and not a girl, how do I decide who I fancy? What if I fancy boys and girls?
Miss? Sir? I'm confused. What's autogynaephilia?
If I'm a girl and I fancy girls I'm a lesbian. If I'm a boy and fancy boys I'm gay. If I fancy both I'm bi. If I fancy the opposite sex then I'm heterosexual. Got it. Easy enough.
If I like motorbikes and heavy metal does that mean I'm really a boy?
My brother likes watching barbie with us, does that make him trans?
My sister wants to be a horse. Can we change species as well as sex?
Oooh we could have lots of fun with this. Wonder if I can attend school that week 


