[quote Andthewinnerislucky]@MusicianTom May I also ask you your experience of the Quaker school? Enrolment, lessons, teachers, etc.[/quote]
Andthewinnerislucky I went to the Mount School, in York. It's an all-girls school, and I think is the only single-sex Friends school remaining in the UK. It's over 20 years since I left, so things have probably changed, and there will be things I don't remember 
It's a private, fee-paying school. When I was there, there were about 350 pupils age 11-18, and at that time around 90% were boarders, but comparatively few of the pupils were from Quaker families.
There was an entrance exam, which I think I had coaching for, and there were scholarships and bursaries available.
I don't have DC myself so am not really up to speed with the Year 6, 7 etc names. We started in 1st form at age 11, progressed to 5th form for GCSEs, and then had College 1 and College 2 for A-Levels (lower and upper sixth equivalent). We had two classes within the year group, each with around 20 girls, all the way up to 5th form. We were streamed for Maths, but not for any other subjects, I think.
GCSE class sizes varied between 10 and 20 depending on how many were taking the subject. A-Level classes were generally less than 10.
It's really difficult to know how good the teachers were - it was the only senior school I went to, and as I say, I don't have DCs. I passed all my exams, GCSEs with pretty good grades and A-Levels a very mixed bag, but that was my lack of aptitude, I think.
We had meeting for worship every morning, just 10 minutes on weekdays. There was a speaker, mostly a member of staff or one of the sixth form, and there was generally a theme for the week. They might play music, or read a poem. Sometimes it was religious, sometimes not. On Wednesdays College 1 and 2 went to meeting at the main meeting house in York, and all the boarders had to go to some manner of religious service at least twice a term on Sundays. .
I wouldn't say it was a forcefully academic education, but you were expected to work hard and fulfill your potential. Everyone was expected to go on to university, to study things like law or medicine.
It was a very feminist environment, without ever being stated. There was just an ethos that women were as intelligent, as important, as valuable as men, and women could achieve anything if they worked hard.
There were weird traditions and slang names for things, like boarding schools in books, but there was also a strong ethos of charity fundraising, social justice, and environmental awareness. Looking back, I think we were a bit virtue signally, and there was probably competititive righteousness.
Everyone took the 'Quakerliness' for granted - it was the whole ethos of the school, and it was just what you did - but we could be irreverant about it as well.