I have found this handbook from Futurelab about games and learning, it can be downloaded here:

http://www.futurelab.org.uk/download...d_learning.pdf

I have found this short handbook very helpful and inspirational. It contains different point of views about how to use games in an educational concept, referring to different investigations and books. It also contains some case studies, including the way Tim Ryland uses ICT in his classroom (check this nice youtube movie).

Not particular related to flash, but very usefull for those interestred in the didactic side of game design.