Giving Back to the Web: Social Filtering of World Wide Web Resources in High School Science

Can high school students become contributors as well as users on the World Wide Web? This research explores a new Web-based curriculum idea, that of having students write and publish critical “reviews” of scientific resources. Writing reviews can be a means of both practicing critical evaluation of Web resources, and of making an authentic value-added contribution to the Web. This paper presents content analyses of 41 source documents and 63 critical reviews published by 11th grade students in a project-based science class. The source documents are described as to their publishing source, use of organizational elements, and use of graphics. Two aspects of student-written critical evaluation are analyzed: evaluation of organization and evaluation of graphics. While evaluations of graphics were somewhat thin in these reviews, this was due mostly to the lack of good content representations in the source documents. The on-line review form did successfully prompt students to make conceptual connections between organizational structure and their own sense-making process. Reviews also sometimes showed students engaged in perspective-taking related to potential readers. The literature review of this paper examines critical evaluation models and current social filtering models for large, distributed databases. A section on future directions for Web reviews describes a review-publishing system developed for the University of Michigan Digital Library system.