The learner-centered paradigm of instruction differs in such fundamental ways from the teacher-centered paradigm that it requires technology to serve very different functions. In 2006, a research team at Indiana University began to work on identifying those functions and published their results in 2008. Subsequently, the team elaborated and…

The interoperability of educational systems, encouraged by the development of specifications, standards and tools related to the Semantic Web is limited to the exchange of information in domain and student models. High system interoperability requires that a common framework be defined that represents the functional essence of educational systems.…

Blogs, which began as a way to easily post one's thoughts online in print, have evolved to include multimedia capabilities. A blog is not limited to text--audio and video can be incorporated. A video blog (commonly called a vlog) is a blog that uses video in its posts. People who create vlogs are vloggers, and the worldwide community of vlogs and…

A "wiki" is a class of Web site that lets authorized users create and modify pages (sometimes called articles) as well as search for information. The term also sometimes describes the software that makes the site possible. The most famous example of a wiki is Wikipedia, an online encyclopedia with articles that are written and edited by site…