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Over the next 10 years, we anticipate that personal, portable, wirelessly-networked technologies will become ubiquitous in the lives of learners — indeed, in many countries, this is already a reality. We see that ready-to-hand access creates the potential for a new phase in the evolution of technology-enhanced learning (TEL), characterized by " seamless(More)
Wireless and mobile devices are beginning to offer stunning new technical capabilities for collaborative learning. Yet, researchers in this field must recognize the importance of complementing these technical advances with improved understanding of the patterns of classroom activity that most need support. Our approach is to create conceptual tools that(More)
Handheld computers will become an increasingly compelling choice of technology for K-12 classrooms because they will enable a transition from occasional, supplemental use to frequent, integral use. Early evaluations suggest teachers and students respond to handhelds favorably. At the same time, these devices will become communication enabled, through(More)
networked handheld devices to enhance school learning. In Abstract Handheld devices, especially networked handheld devices, are growing in importance in education, largely because their affordability and accessibility create an opportunity for educators to transition from occasional, supplemental use of computers, to frequent and integral use of portable(More)
It is well known that scripts based on good practices can enhance the collaboration effectiveness and efficiency in CSCL environments. Yet, to achieve rich, interactive, and creative collaborative learning settings CSCL tools need new flexible, dynamic and lightweight metaphors. This design tension between social and technology-mediated coordination is(More)
Nine observers reviewed a previously assembled library of 320 chest computed radiography (CR) images. Observers participated in four sessions, reading a different 1/4 of the sample on each of four liquid crystal displays: a 2-megapixel (MP) consumer color display, a 2-MP business color display, a 2-MP medical-grade gray display, and a 3-MP gray display.(More)