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Oviatt, Sharon L.; Cohen, Adrienne O. – Journal of Science Education and Technology, 2010
From a theoretical viewpoint, educational interfaces that facilitate communicative actions involving representations central to a domain can maximize students' effort associated with constructing new schemas. In addition, interfaces that minimize working memory demands due to the interface per se, for example by mimicking existing non-digital work…
Descriptors: Problem Solving, Short Term Memory, Science Education, Computer Interfaces
Suthers, Daniel D.; Hundhausen, Christopher D.; Girardeau, Laura E. – Computers & Education, 2003
This paper reports an empirical study comparing the role of discourse and knowledge representations (graphical evidence mapping) in face-to-face versus synchronous online collaborative learning. Prior work in face-to-face collaborative learning situations has shown that the features of representational notations can influence the focus of…
Descriptors: Learning Activities, Cooperative Learning, Knowledge Representation, Educational Environment

Barnard, Philip J.; May, Jon – Human-Computer Interaction, 1999
Interacting cognitive subsystems (ICS) is proposed as a unified cognitive theory that can be used as the basis for representations in human-computer interaction, and two approaches based on the theory are described: one entails the description of cognitive task models, and the other entails the production of less complete diagrammatic notations.…
Descriptors: Cognitive Processes, Cognitive Structures, Computer Interfaces, Computer System Design