Happy to help! I was very lucky to have a friend with a child two years ahead who talked me through it. It’s nice to be able to help someone else.
The maths set is protractor/compass/set square thing. I just picked up a replacement for DD from Wilkos for £3, I think the brand I bought this time was Oxford.
The calculator is a scientific calculator, they want a certain one. DD’s one is the Casio FX85GTPLUS, but the school will tell you the exact model to buy, I don’t know if they have changed to a newer and better model. It’s between £10 and £20.
It’s worth telling your DD to keep an eye on her stuff, DD kept her PE kit in her locker even though it was a faff. Towards the end of term there was a lot of borrowing

from accessible PE bags and several of DD’s classmates lost bits of PE kit for good.
We didn’t buy a raspberry pi until the end of year 8 when DD chose to do Computer Science for GCSE.
If your daughter wants any reassurance or advice I am happy to pass questions onto DD. DD did say to take a notebook and pen for the induction day they go to, she got some of her new classmates to write down their phone numbers and email addresses. She was able to get to know some of them better over the summer.
It’s a big initial outlay but it does last and it wears well for something they wear daily for years. If DD hadn’t expanded in length (4 inches over 6 months

), hip and chest, we could probably have got another year out of the uniform. We spread the cost over July, August and September which helped.