'"Evidence from the United States suggests that once you move beyond a four-week break for pupils, their retention of knowledge just goes down the pan."
Hopefully once people have left school all the knowledge they acquired at school isn't likely to go 'down the pan' after 4 weeks? If so, what is the point of school?
"Any parent or teacher will tell you that it takes some time to get kids back into the habit of learning"
I think children are learning all the time (maybe/ maybe not school subjects). It isn't a habit, it's life. So I think you mean it takes time for some children to get back into the habit of being schooled.'
The thing is there are particular types of skills and knowledge that are needed at school that you may never need much more admittedly but which does require regular practise.
The research indicates that it's particularly maths that's affected so whereas children might well practise their reading, they don't generally practise maths.
Now, the sort of things or nothing that you and I value can STILL take place during the 4 weeks summer holiday (and proper downtime during the autumn and spring terms too which is currently quite difficult in only one week) but you wouldn't get quite so long off to forget stuff.
Now, I have very particular experience of this as a teacher and with myself and my own kids.
I forget stuff over the 6 week break. I may leave before summer knowing exactly what I want to achieve and of course I do some work over the holiday but it takes a long time back in September just to get back to teh place I was at in July before I can actually move forward.
I KNOW that my dcs' timetables which were pretty good at the end of the year end up going to pot as with other examples of their progress.
DC1 is really sporty and gets nowhere near the sort of training she needs to make proper progress. Likewise with music.
Now if this happens with me and dp (grown-ups, well sort of) and the children of teachers who are both off for 6 weeks with our kids. I reckon they take a good month to get back into the routine and start making progress again, then what is it like for those kids who are less fortunate?
Well, I'll tell you, because I teach a lot of them. It's rubbish. And some NEVER get back what they lose. Some of dps' pupils never come back after the summer holidays quite literally.
There are some things in life that have to practised little and often and this is MATHS, MATHS, MATHS.