Wikis as shared digital artifacts may enable users to participate in processes of knowledge building. To what extent and with which quality knowledge building can take place is assumed to depend on the interrelation between people's prior knowledge and the information available in a wiki. In two experimental studies we examined the impact on…

The learning productivity approach to higher education attempts to gain productivity, not so much by reducing or cheapening inputs but by enhancing higher education's major output: student learning. In the learning productivity perspective, the principal problem is in teaching and learning inefficiencies such as excessive nonlearning time,…

Reviews multichannel learning research to find the best ways to combine audio and video in television to improve learning, and summarizes the research findings into principles for instructional television production. Highlights include the effects of redundancy on learning and on audience attention, message clarity, and problems in instructional…