Strand Maps as an Interactive Interface to NSDL Resources

该项目正在开发和评估Strand地图服务，以便为国家STEM数字图书馆(NSDL)的教育资源提供一个交互式和灵活的界面。线状地图描绘了基于AAAS科学素养基准和NRC国家科学教育标准的科学学习目标之间的相互关系。这些学习目标描述了学习者在教育的关键阶段应该知道或能够做的事情。该服务使教育工作者和学习者能够1)发现支持串地图中所述学习目标或基准的教育资源；2)浏览串图中相互关联的学习目标；以及3)通过使用该服务来探索关于学习目标的重要背景信息，例如先前对学生误解的研究，从而增强他们自己的内容知识。

This project is developing and evaluating a Strand Map Service to provide an interactive and flexible interface to educational resources in the National STEM Digital Library (NSDL). Strand maps depict the interrelationship of science learning goals based on the AAAS Benchmarks for Science Literacy and the NRC National Science Education Standards. These learning goals describe what learners should know, or be able to do, at key stages in their education. The service enables educators and learners 1) to discover educational resources that support the learning goals, or benchmarks, articulated in the strand maps; 2) to browse the interconnected learning goals in the strand maps; and 3) to enhance their own content knowledge by using the service to explore important background information on the learning goals, such as prior research on student misconceptions.