I've been doing a bit of mindmapping to try to figure out where I should focus my efforts - I think I'll have to go back and talk to my contacts again. They were a huge help last time, so I hope they can help me make sense of the mess again!
I've been slogging through my ethics proposal. It's actually not as difficult as I had expected - it mainly just forces you to think about every aspect of your testing. I'm using a modified version of Steve Krug's Usability Framework, tweaked to work better with product, rather than software testing.
Early in the reading week I had the chance to visit MIT's Media Lab. One of the research groups there is called Lifelong Kindergarden. They've previously made a name for themselves by developing programming and electronics environments for children like Scratch and Makey-Makey. It was interesting, and much more practical than some of their other groups - their projects actually seemed to try to solve real design problems!
I managed to get my hands on a book called Design and Technology in the Primary School by Hind Makiya and Margaret Rogers. I wish I had found it earlier - it's pretty much a collection of case studies for exactly the sort of thing I'm interested in!