Useful Math Links
- Wolfram Alpha - A complete online computer algebra system
- Desmos - A great site to create online plots of all sorts
- !! Interesting !! Moebius Transformations Revealed
Maybe your question has already been answered! Check out these archives of answered questions.
- Cardano's formula for the cubic - One of our most popular requests: what's the formula for the roots of a cubic equation?
- Cut The Knot! - This site focuses on problem-solving techniques, and includes solutions to a number of intricate problems.
- QuickMath - An automated service that gives immediate answers to various kinds of algebraic and symbolic problems.
- WebMath - Automated answers in many categories up through calculus. Includes compound interest. Interesting site because the automated answer not only gives you the answer but shows step by step how to get it.
Eric Weisstein's World of Mathematics - Online math encyclopedia. An excellent resource for looking up words and concepts; often goes into a great deal of detail on the math involved. Try this one first!
In Discovery or Inquiry-Based Learning, you are lead to discover the answer for yourself. Read more about this method here.
- Discovery Learning Project - Two sites in one! The Discovery Learning Project tracks various projects that use and encourage the use of discovery methods. The Legacy of R. L. Moore site traces the influence of Robert Lee Moore (1882-1974), a famous proponent and practitioner of discovery methods of teaching.
- Personal experiences with discovery learning methods - Everyone who teaches by discovery or inquiry-based methods does it a little differently. This page (part of the Legacy of R. L. Moore site) contains about 30 short notes online and references to about 30 more. Teachers give their experiences using these methods and their impressions of their own teachers who used the methods.
- Creative Teaching: The Heritage of R. L. Moore - A book-length biography and study of R. L. Moore and the "Moore method" of discovery learning. Originally published as a print book by the University of Houston in 1972, now available online in several digital formats.
- SOS Math - Lots of good explanations, examples, and drills. Especially good on fractions and polynomials. Covers algebra, trigonometry, calculus, and several advanced math areas.
- Math.com Algebra Worksheets - Generates worksheets with algebra problems. (No answers though, so you'll have to check your work yourself.)
- A+ Math - Mostly arithmetic. Has flashcards, games, worksheets.
- MathStories.com - Hundreds of story problems with answers. Elementary school level.
- Complex, Technology Based Problems in Calculus - These problems have a higher level
of complexity than traditional text book problems and foster use of a computer algebra
Each problem set includes discussions of related teaching issues and solutions worked in Mathematica.
(Also see Discovery/Inquiry Learning above)
- Mudd Math Fun Facts - A collection of over 100 fascinating math tidbits that lead into broader areas of mathematics.
- Merlot - A site with links to an assortment of sites, including mathematical sites. Includes a reviewing system so you can see if other people liked the sites before you go.
Slashdot: News for Nerds. Stuff that Matters. Covers everything that's not in the mainstream. Includes obligatory black page backgrounds.