Argues that consideration of constructivism's epistemological implications suggests that educational technologists need to convince learners of a problem's authenticity rather than to promote environments that deliver "preauthenticated" problems. Proposes guidelines to assist developers of educational technologies in accommodating the essentially…

Interface and instructional design guides almost completely ignore sound, and research suggests many promising instructional uses remain largely unexplored. Examines information processing and communication theoretical foundations for sound's systematic use in the instructional communication system and proposes a framework for a program of…