University of North Carolina
Figures and Charts
Sometimes words aren't the best way to get information across to the reader. The eighth handout in the 24-part Writing the Paper series describes different type of figures and charts to display complex information in a paper....
Wolfram Research
Wolfram Math World: World's Most Extensive Mathematics Resource
MathWorld provides a huge mathematics encyclopedia detailing the concepts of geometry, algebra, calculus, discrete math, number theory, and other math topics--complete with formulas, diagrams, examples, and references for thorough...
Teachnology
Teachnology: Teacher Guide to Probability and Statistics
Statistics Theme provides a collection of free sample worksheets, teacher resources, lesson plans and interactive media for grades k-12.