Hal Eden is a senior researcher in the Department of Computer Science and Associate Director of the Center for LifeLong Learning & Design at the University of Colorado at Boulder. He has been a key developer on the Envisionment and Discovery Collaboratory (EDC) since its inception and has worked closely with domain experts on embodying innovative design practices in the EDC. His research interests include participative design, tangible tabletop interfaces, interactive design and learning environments, embodied design, interaction support for face-to-face collaboration, and socio-technical environments in support of social creativity.