About NSDL


NSDL's mission is to provide high quality Open Education Resources (OER) for effective teaching and learning, with current focus on the sciences, technology, engineering, and mathematics (STEM) disciplines—both formal and informal, institutional and individual, in local, state, national, and international educational settings.


  • The NSDL network includes multiple STEM research and education organizations providing digital resource collections, services, partnering opportunities, and connections to multiiple communities of practice across a wide range of education levels and disciplines:  K12, higher education, informal and lifelong teaching and learning. 
  • NSDL does not hold content directly—instead, we provide organized descriptive information (metadata) about web-based educational resources held on other sites by their providers, who contribute this metadata to NSDL for organized search and open access to educational resources via NSDL.org and its services.