Originally Posted by RRD
we can't correct him with his homework AT ALL,

I long ago gave up attempting to correct homework. DD11 does her homework and I don't even look any more. It's her work, the teacher will correct it (or not!), and she doesn't learn from me pointing out mistakes - she just gets mad!

I still 'help' DS8 with with homework, but it's mostly prompting him to do it (or scribing when necessary).