Mine have done no formal school work. They have read piles of books - this is no hardship, I can't stop them reading, I do know how lucky I am.
They have been to stay with their grandparents, have made jam, learned about archaeology and life in Roman/Medieval times, learned all about bears and have made lots of new friends. (jam making, reenactment visit, zoo visit, playing outside)
They have been to Devon, have made sandcastles, learned about geography and water erosion (walk through the Lyn Valley), have made salads for a BBQ, have seen porpoises and seals in the wild and learned about coastal formatinos (boat trip).
They are about to spend their last week learning more about conservation (more zoo), history (museum in Cambridge followed by lunch at Brown's, which is in a converted mental institusion so history potential), find out about early Medieval Britain (Mountfitchet Castle), have helped me play Gardens of Time (bit of brain training) and will no doubt make several visits to the local library for more books. Oh, and DD2 has told me she no longer believes in Santa.
work books and drill are unimaginative ways of stimulating learning during the school holidays
So flame me already.