Create a Graph [ Kids/Teens ] - Learn how to create area, bar, pie and line graphs from the National Center for Education Statistics. This interactive charting tool allows completed graphs to be downloaded and/or printed. http://nces.ed.gov/nceskids/graphing/

Fact Finder Kids' Corner [ Kids ] - The U.S. Census Bureau provides this site as part of their American FactFinder effort. The site provides facts about all of the states, in an age-appropriate format. There is a quiz, and an explanation of the Census. http://factfinder.census.gov/home/en/kids/kids.html

NASS Kids [ Kids ] - The National Agricultural Statistics Service provides this site with some basic explanations of statistical terms, as well as some games and puzzles. http://www.usda.gov/nass/nasskids/index.html

Percent and Probability [ Kids/Teens ] - Learn what a percent is and how to figure probability. http://www.mathleague.com/help/percent/percent.htm

Statistics [ Teens/Mature Teens ] - Article from Encarta Encyclopedia defines this branch of mathematics, offers a short history, and provides an overview of the study today. http://encarta.msn.com/encyclopedia_761562521/Statistics.html

The Birthday Problem: A Short Lesson in Probability [ Teens/Mature Teens ] - Find out how likely it is that two people in a class have the same birthday. With an explanation of the math behind this problem and a simulation. http://www.mste.uiuc.edu/reese/birthday/

Using Data and Statistics [ Teens/Mature Teens ] - Learn about charts and graphs created from everyday examples. Also, learn to how to compute different types of average values, such as the mean or median. http://www.mathleague.com/help/data/data.htm

What are Statistics, Probability Theory, and Operations Research? [ Teens/Mature Teens ] - Some definitions with a few examples, from the Dept. of Statistics at the Florida State University. http://stat.fsu.edu/undergrad/statinf2.html