Examines the nature of mental models and the need to provide appropriate environments to stimulate their development within the context of providing mechanisms for the support of lifelong learning. Discusses changing models of teaching and learning, changing learning environments, education on demand, and performance-support systems. (PEN)

Introduces and discusses a model of teaching and learning that can be used as a basis for building new types of educational infrastructure based upon the use of Web-based resources, peer group interaction and online tutoring. Discusses the special role that e-tutoring plays within online courses and outlines some of the implications of this…