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National Science Digital Library

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The National Science Digital Library (NSDL) was created by the National Science Foundation to provide organized access to high quality resources and tools that support innovations in teaching and learning at all levels of science,technology, engineering, and mathematics education.


The rapid acceleration of information available via the Internet makes locating high-quality, accurate, and truly useful educational resources challenging for teachers and learners. Educators, in particular, need efficient and reliable methods to discover and use science and math materials that will help them meet the demands of instruction, assessment, and professional development.

NSDL was established by the National Science Foundation (NSF) in 2000 as an online library which directs users to exemplary resources for science, technology, engineering, and mathematics (STEM) education and research. NSDL provides an organized point of access to STEM content that is aggregated from a variety of other digital libraries, NSF-funded projects, and NSDL-reviewed web sites. NSDL also provides access to services and tools that enhance the use of this content in a variety of contexts. NSDL is designed primarily for K-16 educators, but anyone can access and search the library at no cost. Access to most of the resources discovered through NSDL is free; however, some content providers may require a login, or a nominal fee or subscription to retrieve their specific resources.

NSDL serves as a nexus for educators, researchers, policy makers and the public by building bridges:

  • Between private sector and public interests by providing access to resources such as publishers' journal articles, teacher-created lesson plans and real-time data sets from scientists
  • Between the scientific, research and educational communities by applying advanced technologies to stimulate new ways for educators and learners to access and use scientific information
  • Between teachers and learners at all levels, in all locations by supplying content and tools in open-access, non-propietary formats in an easily accessible online environment.

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