Although previous research has demonstrated learning benefits for both instructors and students in the web-based collaborative learning environments, one of them major difficulties is the lack of a practical approach to assist teachers in evaluating the knowledge contribution of learners. A novel method of merging multi-modes of assessment and…

Outlines conditions that should be present in an electronic tutoring system, and describes the Electronic Homework system. Discusses the modules contained in the system's two main components--the Computer Tutor and Homework Administrator. Gives an example of the tutoring process, and examines the overall effects of using Electronic Homework. (AEF)

Describes the design, implementation, and preliminary evaluation of three synchronous distributed learning prototype systems: Co-Working System, Working Along System, and Hybrid System. Each supports a particular style of interaction, referred to a socio-activity learning model, between members of student dyads (pairs). All systems were…

Investigates the effects of audio and text density on the achievement, time-in-program, and attitudes of 134 undergraduate students. Data concerning pre-existing computer skills/experience and demographic information were also collected. Findings have implications for the use of audio, text and graphics in the design of computer-based instruction.…

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…