TAs in every classroom as part of Govt school budget, not individual school's budget. This would give TAs a bit more job security and they won't be worried that hours will be cut every time local birth rate fluctuates. TAs are vital, even in small classes, because of the variation in ability and needs of the children. They are eyes and ears for teachers as well as an extra pair of hands, and have time to really get to know the children so are invaluable in their pastoral care as well as supporting their education.
No sex education in primary school - they're not ready for it and not interested.
What is wrong with teaching RE? After all, we are supposed to be a Christian country...Stop discrimination against children and families who actually have a faith.
Student teachers - please don't inflict them on schools until the end of their courses when they have more idea of what they're doing. I know they have to practise somewhere, but going into schools to teach in the first term of their course is ridiculous. My DCs groan whenever they know they've got one, and they've all been totally useless so far.
Less paperwork for teachers and Heads - they have a hard enough job as it is without all the other rubbish.
Take bullying allegations seriously and do something about it straightaway, then follow up to make sure there's no recurrence or backlash.
Secondary - offer wider range of languages (e.g. Italian, Mandarin, Eastern European etc) from Yr7 so children not stuck with French, German, Spanish. Also, teach about the culture, not just grammar.
(Personal hobby horse here) - I'm fed up with homework (even at primary) needing the internet. Yes, we have it, but it means giving up parent's time to supervise use of computer, and wasting my printer ink on reams of stuff they probably won't need again. What's wrong with books? We should be teaching children to have a healthy scepticism of what's published on the web, whereas books are at least checked for content. All power to the library!!
Clubs - lunchtime rather than after school, and varied to encourage hobbies. Not just sports clubs, but crafts or other interests. (Maybe this is how we could provide different language experiences?)
Obviously I agree with other posts that the most important thing is for the DCs to be happy going to school, so it can't hurt to try to put friends together in classes/groups/sets etc where possible...
Think that's it for now!!