Wikipedia
Visionlearning is a free, web-based resource for students and educators in the science, technology, engineering and mathematics (STEM) disciplines. Geared toward those studying at high school and undergraduate levels, Visionlearning takes advantage of recent advances in new media to provide students and educators with learning and teaching materials. Research by project personnel has shown that this peer-reviewed and bilingual content improves student understanding of science and facilitates multidisciplinary teaching. The project also strives to build community around improving STEM education.
Supported by the National Science Foundation and the U.S. Department of Education, Visionlearning provides educational content that not only explores specific STEM concepts, but examines how we know these things. Project leaders believe that an important facet of succeeding in these disciplines is understanding their respective histories, as well as engaging with the process of discovery.