Beezmum - you are absolutely right. DD has just finished Y4 and can't read or write. I have begged and begged and begged school to spend more time teaching her to read, but they won't. They insist she has to do French (!) and RE and PSHE and god knows what else.
Needless to say she hasn't learnt anything in those subjects either.
Rabbit stew - its about 20% of kids who leave school without enough skills to access secondary school. That's a huge amount. Far, far, far too many.
EBDteacher - I don't think there's any reason to assume these proposals will apply to special schools.
How I interpret these documents is what DD would get is age appropriate teaching for maths and English in the morning, then in the afternoon extra teaching of English instead of French etc.
I would be very, very, very happy with this. And I don't see why any child who is quick to learn will be disadvantaged by having DD in their class.
This could be done now. The only reason it isn't is because school value a 'broad and balanced' curriculum above teaching her to read.
As for TAs teaching the struggling kids, a Sutton report was very critical of it and OFSTED are now very critical of it, so certainly at my school we don't allow it to happen anymore.
Gove is asking for a cultural change. You good teachers will still be good. But instead of expecting all kids to make 2 sublevels, you will have to get all kids to a 2b and all kids to make 2 sublevels.
But to do that you will be able to sacrifice afternoon subjects only for the kids who are behind.
I'm not sure if any of you have a child who is being failed as badly as my DD. it's no good teachers being happy that 80% of their class made expected progress. No good at all for my DD. yet I know that the teachers at my school are all very happy with what they achieve.
Even when DD makes no progress nothing happens. Nobody cares. Her interventions don't change. The teacher doesn't care. The SENCO doesn't care. The HT doesn't care.
In fact after I complained to the SENCO that DD had made no progress the HT told me if I was unhappy with the level of support she was getting I could move school 
The school system for the bottom 20% is appalling. And Gove is right to address it.
You who think 'my kids fine' are being very short sighted. What do you think happens to those kids who are failed by school? I'll give you a clue, 50% of prison inmates can't read.