Colleen M. Kehoe

Emerging trends in the WWW user population

Background Vast amounts of attention and resources have recently been devoted towards the World Wide Web (WWW) [Berners-Lee 94], but relatively little research has been conducted that examines Web usage and societal implications. With the goals of understanding the Web user population and promoting the Web as a viable surveying medium, GVUs WWW User Surveys were initially conducted during January 1994. Subsequent surveys were administered approximately every six months thereafter. The surveys employ non-random sampling techniques, which limit the ability of the results to generalize to the entire Web population. Each survey is conducted using the limited interactivity of the Web, where users point and click on responses within their Web browsers and submit results to a centralized server for processing. Each survey is conducted for a one month period.

Rethinking the evaluation of algorithm animations as learning aids

A display carton comprises a rectangular structure having top and bottom closures. The interior of the carton is divided into upper and lower compartments by a platform flap cut from the front panel and folded to overlie the contents of the lower compartment. This provides a display window through which the portion of the contents of the carton above the platform flap may be viewed.

Beyond Adoption to Invention: Teacher-Created Collaborative Activities in Higher Education

The potential learning benefits of the Web are diminished due to the complexity of creating interactive, collaborative Web-based applications. The CoWeb is a collaborative Web site that allows users to create collaborative applications with great flexibility. The CoWeb facilitates open authoring where any user can edit any existing page or creating new pages. Using the CoWeb, both teachers and students have invented a wide variety of educational applications. Thus, the CoWeb serves as an example of an educational technology that has led to teacher inventiveness.

WWW interactive learning environments for computer science education

The wide accessibility of the World Wide Web makes it a perfect base for developing computer science courseware modules. Since learning involves more than just receiving transmitted information, courseware must be interactive and encourage student engagement, which is a challenge on the Web architecture. This article describes an ongoing effort to develop World Wide Web-based computer science courseware modules that will use interactive components as integral parts of the material, in order to promote student involvement. It also discusses the proposed usage of new technology such as HotJava in this framework.

PML: adding flexibility to multimedia presentations

In multimedia systems, designers typically link content and presentation. The paper discusses a new markup language, Procedural Markup Language (PML), which decouples content and presentation. It lets users specify the knowledge structures, underlying physical media, and relationships between them using cognitive media roles. This approach fosters modular system design and dynamic multimedia systems that can determine appropriate presentations for a given situation by allowing knowledge specification to be done separately from knowledge presentation.