Many studies have been conducted on the topics of tools, computers, and technology designed to promote student learning. However, researchers have rarely raised the critical issue of the lack of consensus on conceptualizing "cognitive tools" or the possible challenges associated with previous definitions. By examining the limitations on research…

Stavros Demetriadis is currently an Assistant Professor with the Department of Informatics, Aristotle University of Thessaloniki (AUTh) in Greece. He also earned his Bachelor's degree in Physics and a Master Diploma in Electronic Physics from AUTh. He became interested in information and communications technologies when he was a high school…

Looks at some key elements of teachers' knowledge and skill bases and considers how these might be supported in Web-based instruction. Describes the "micro-genres" that constitute the instructional events of the online class. Introduces a software package to demonstrate how these interactions may be facilitated in practice. (Author/AEF)