| 英文摘要 |
Many schoolteachers use the Internet to search for online instructional materials. The multiple search results, however, tend to be unusable, of low quality and often irrelevant. In addition to using search engines, schoolteachers also refer to instructional resource websites to browse and search for educational tools. The purpose of this study is to analyze the contents and retrieval interfaces of those websites. It was found that the scope, selection standards, and selection processes of the websites were unclear. For instance, identical types of instructional resources were named differently among the websites. Resources were described according to a variety of metadata formats, thus causing the problem of interoperability. Most websites provided a basic and advanced search, and all of them offered a keyword search. In addition, the learning field, type of resource, grade level, and title of resource were major access points found in those websites. The study suggests that help messages, display modes, and result ranking devices need to be improved. |