QR Codes, I have to say, are a marvellous method for discovery in school. Why? Because they offer up the 'unknown' to children and techers alike. The children, as you can see to the left, don't know what is behind the code until the image appears, like magic, before them. The game we played ensures good language and teamwork as they try to work out which image matches the code. Some children didn't know what the Olympics were and none of them had ver heard of Greco Roman wrestling or water polo - "What? They play handball in the water?" Well, yes, they sort of do.