Open Educational Resources (OER)

MathWorld: is the web's most extensive mathematical resource, provided as a free service to the world's mathematics and internet communities as part of a commitment to education and educational outreach by Wolfram Research, makers of Mathematica.

MathWorld currently features a number of innovative interactive elements that enhance its usability for a variety of different readers. These features include:

• The MathWorld Classroom, which provides a set of pop-up "capsule summaries" for more than 300 mathematical terms.
• Extensive citations to books and journal articles, many of which are active hyperlinks.
• Thousands of downloadable Mathematica notebooks.
• Several types of interactive entries, including LiveGraphics3D applets for interactive three-dimensional geometry.
• A powerful full-text search engine with both basic and advanced searching capabilities.
• Dublin Core and Mathematics Subject Classification metadata in the HTML headers of each page.
• Special information for Mathematica users.