Proceedings of the conference on Graphics interface '97
Single display groupware: a model for co-present collaboration
Proceedings of the SIGCHI conference on Human Factors in Computing Systems
Combining handhelds with a whole-class display to support the learning of scientific control
CHI '03 Extended Abstracts on Human Factors in Computing Systems
Direct Intentions: The Effects of Input Devices on Collaboration around a Tabletop Display
TABLETOP '06 Proceedings of the First IEEE International Workshop on Horizontal Interactive Human-Computer Systems
Embedded phenomena: supporting science learning with classroom-sized distributed simulations
Proceedings of the SIGCHI Conference on Human Factors in Computing Systems
An evaluation of techniques for reducing spatial interference in single display groupware
ECSCW'05 Proceedings of the ninth conference on European Conference on Computer Supported Cooperative Work
Collaboration and interference: awareness with mice or touch input
Proceedings of the 2008 ACM conference on Computer supported cooperative work
A walk on the WILD side: how wireless handhelds may change CSCL
CSCL '02 Proceedings of the Conference on Computer Support for Collaborative Learning: Foundations for a CSCL Community
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Who's Who is a single-display groupware application designed for use by an entire class of young students. Utilizing a shared display, each user controls the state of discrete display elements using a simple interface on a handheld device; however, the semantics of user operations are left unspecified and become the subjects of guided student discovery. Interference among users is leveraged in support of student learning about the scientific principle of "control of variables," in particular, the strategy of varying one independent variable at a time in multivariate systems. We present the experience of a third-grade classroom that used Who's Who, including both an account of learning outcomes and a description of the technology and social interactions that led to those outcomes.