To examine the role of teachers' conceptual representations of the Internet and World Wide Web, a survey and 10 case studies were conducted among pre- and in-service teachers enrolled in university courses. Results reveal diverse, plausible representations, not related to level of expertise. Experts were found to have a "representational…

Expert users of the Internet were studied to identify the strategies they used to locate specific information. Participants' searching actions were recorded, including counts of each movement from Web page to Web page and within Web pages. Three patterns appeared: keyword searching, hierarchical searching, and meandering. Implications for the…

Presents the development and piloting of a coding system for evaluation of asynchronous Web-based instruction/learning. Processes were guided by four prominent education perspectives and the extended examination of, and survey data from, 17 archived Web-based courses. These served as the bases for the development and application of the coding…

Describes four Web-based agents developed for reengineering a freshman chemistry laboratory education: the "intelligent tutoring tool" that conducts online problem-solving coaching; "the adaptive lecture guide" that provides navigation guidance sensitive to students' knowledge status; the "student modeler" that assesses students' knowledge…