At last, an opportunity to show kids the impact of boolean searching in a very visual way with this excellent tool from Boolify. Build your search query like a jigsaw puzzle, and see the impact of varying your search strategy.
Here’s a very interesting way to demonstrate the way boolean searching works, particularly for younger students. Cleverly via Miguel Guhlin.
Stephen Downes says:
… I think that this sort of approach to creating queries could be extended a lot – my first thought was that it could function as a generic sentence constructor, which in turn would be really usefuil for language learning and logic. There are also curriculum resources.