My dc goes to a pushy pre-prep. It's unselective at entry, but only goes to 7, so prepares them thoroughly for the 7+ and has a very good record of getting it's children into the top selectives at 7.
Here's what my dc is doing now:
spellings - 45 words - all done, working towards finishing top 100 by end of summer term. Spelling tests twice a week, 3 words at a time, with same spelling rule, eg: at, hat, cat.
reading - all seem to be on about ORT 4-7 at the moment. A new reading book comes home 4 x a week
maths - number bonds to 10 done, now working on bonds to 20; simple money problems, maths +10 pattern upto to 100, 2d and 3d shapes, symmetry
handwriting - varies I'd say from looking at recent class displays. I'd wager that older children currently have slightly better hand grip than the youngest and it shows at this young age.
writing - very basic stories, capital letters and full stops expected, for basic news stories or re-telling of popular fairy tales and bible stories.
There's a marked difference in the achievements of the Autumn born v the Summer born, but the Summer born children seem to also achieve great results in the 7+, I don't know whether this is because they catch up, because the selective prep schools do purposely select from across the calendar year group or a mixture of the two factors.
One very experienced Mum I know is adamant that Summer born children have a much better chance of getting into selectives as parents are put off putting their Summer born children into the tests and so there is less competition for that quartile of children sitting the exam. Whereas there is a excess of Autumn born children competing for that quarter of places.