National Digital Library for Undergraduate Mathematics, Science, and Technology Teacher Preparation and Professional Development

该项目正在创建一个国家虚拟教师资源中心（NVTRC），重点是为两年制和四年制文理学院以及教科学和数学本科课程的教育学院教师收集资源。NVTRC是俄亥俄州州立大学和艾森豪威尔国家信息交换所之间的合作，它预计将作为数学，科学和技术本科教师教育和专业发展的中心和焦点。NVTRC的收集主要集中在电子资源，包括基于网络的文本或数据资源，可以通过网络或其他电子方式下载的软件或视频，或其他新兴技术应用程序。正在建立一个审查程序，以确保资源准确、教学有效，并确保国家培训和培训中心作为高质量材料的有效来源运作。此外，NVTRC工作人员识别电子材料的具体程度或“粒度”往往不支持其他网络搜索机制。最后，向NVTRC的用户提供了一系列数字和人工服务，包括通过有效的索引和链接随时发现和检索材料和有关材料的信息，与收藏中的项目链接的用户或第三方评论/奖励，用户注册其他服务，如新资源的电子邮件通知，以及真实的和虚拟参考咨询台服务。

This project is creating a National Virtual Teacher Resource Center (NVTRC) that focuses on a collection of resources for two-year and four-year Colleges of Arts and Sciences and Colleges of Education faculty members who teach science and mathematics undergraduate courses. The NVTRC is a collaboration between the Ohio State University and the Eisenhower National Clearinghouse, and it expects to serve as a hub and focal point for mathematics, science, and technology undergraduate teacher education and professional development. The collection of the NVTRC focuses primarily on electronic resources including web-based text or data resources, software or video that can be downloaded via the web or other electronic means, or other emerging technology applications. A review process is being established to ensure that the resources are accurate, pedagogically effective, and that the NVTRC operates as an efficient source of quality materials. Additionally, the NVTRC staff identifies electronic materials at a level of specificity or "granularity" not often supported by other web searching mechanisms. Finally, a range of digital and human services are offered to users of the NVTRC including ready discovery and retrieval of materials and information about materials through effective indexing and linking, user or third-party reviews/awards linked to items in the collection, user registration for additional services such as email notification of new resources, and real and virtual reference desk services.