I really like this podcast Graham and had a look at Chris Harbeck's blog and discovered the goecache-which is a really cool piece of technology but opens up an opportunity to teach maths concepts by creating a treasure hunt in the school (using grids-coordinates)-it will link really well with our Ancient Egyptian unit and archaeology digs. I totally agree that as soon as the students know there is a genuine audience the quality of their work lifts-I've seen it happen! Cheers, Kate T:)

I like your Idea with the treasure hunt angle on geocaching. Thanks I will try it