There might be more of a London flavour to these resources (as they're made by people in London) but as they're also online anyone can access them, and they're free.
A range of "free learning & cultural offers that children can access safely from home" - London Learning at Home from the Mayor of London.
A project I'm involved with ( Teaching London Computing, supporting computer science teachers in schools) is listed there because we've previously been funded by the Mayor of London. We've tweaked a few of our own activities so that they can be done directly on a computer, without need for a printer - more info here Home Learning / Computing at Home.
Jo "legitimately posting on Mumsnet for work" Brodie :-)