WebTOP is a three-dimensional, Web-based, interactive computer graphics system that helps instructors teach and students learn about waves and optics. Current subject areas include waves, geometrical optics, reflection and refraction, polarization, interference, diffraction, lasers, and scattering. Some of the topics covered are suited for…

The advent of wireless and pervasive technologies offers many opportunities for designing learning experiences that encourage children to explore, initiate and reflect. Novel forms of interactions can be developed, that exploit the "physical" and the "digital" in a diversity of ways that move beyond the "desktop" genre of interactions. In this…