ACM - affordances
Tiffany Tseng
Coram Bryant
Paulo Blikstein
Proceedings of the 10th International Conference on Interaction Design and Children - IDC ’11
rethinking school in the age of the computer, Basic Books, Inc
MIT Press, 1991
Design and technology for Collaborage
reacTIVision
A tangible interface for organizing information using a grid
I don't understand it either, but it is cool
MagneTracks: A Tangible Constructionist Toolkit for Newtonian Physics