My DS is in year 5. At the end of year 4 got a lesson re sessions, told 10 weeks and heavily subsidised and ask for voluntary contribution of £25 - please let office know if you can't pay this term and arrange to pay after holidays 
So my DS goes every week, they get half hour. Fine and dandy, but, here is my issue.
They swim in 2 lots of 3 groups, only have half the pool and the 3 groups are divided up in the pool lengthways - 25m pool. So DS is in the group that are at deep end and swim about 10m down the pool.
That's it, that's the top group. I was going to say I was happy for him not to go and not pay but was told it compulsory under NC - is this the case?
If it is the case surely when the school are asking for payment they should have groups available that actually mean the children learn or gain something from it? (I get they really can't actually enforce payment but they are asking).
Oh dear, it sounds like I'm whittering but I guess what I'm actually asking is surely if you must differentiate literacy, maths etc so every pupil learns and the more able are stretched you should consider that there are many 9/10 year olds who can swim further than 10m and arrange the lessons appropriately? So the first half hour is 3 groups up and down the pool and the next session is for those who can manage lengths?
I'd be interested to hear how other schools arrange their swim sessions and their set up.
TIA