Mathematics: Websites

From the Exploratorium. If you don't have the book choose online activities.

Free course materials; Undergraduate and graduate level; supplemental resources

'Stuck on a math problem? Get hundreds of instant answers to your math questions.

• Math for Everyone
• General Math
• K-8 Math
• Algebra
• Plots and Geometry
• Trigonometry and Calculus '

Find biogrqaphies of mathematicians, articles on the history of math, discussions of famous curves.

Designed as a homework and tutoring aid with, definitions, explanations, tools, calculators, and outlines.

A comprehensive source for algebra topics and problems. Uses text, illustrations, and step-by-step problems to explain each topic. Includes a section on word problems. Provides links to other algebra related web sites.

A comprehensive index of mathematics resources organized alphabetically under these general topics:
  Algebra
  Applied Mathematics
  Calculus and Analysis
Discrete Mathematics
Foundations of Mathematics
Geometry
History and Terminology
Number Theory
Probability and Statistics
Recreational Mathematics
Topology.