This page would look a lot spiffier if you downloaded a standards compliant web browser.

A Tangible Construction Kit for Exploring Graph Theory
    ACM Tangible and Embedded Interaction, Cambridge UK, Feb 16-19 2009
    Graphs are a versatile representation of many systems in
    computer science, the social sciences, and mathematics, but
    graph theory is not taught in schools. We present our work
    on Graphmaster, a computationally enhanced construction
    kit that enables children to build graphs of their own and
    investigate their properties by experimenting with
    algorithms that operate on them. The system is distributed;
    microcontrollers inside each node execute an interpreted
    language in parallel. Graphmaster, with its magnetic
    connectors, illuminated edges, and capacitive sensing,
    encourages children to develop intuitions about
    connectivity long before they are introduced to the notation
    and formulas of graph theory.
    related projects: