Math4.2.a1

4.2.A1 Data
http://mathplayground.com/piechart.html || http://cyberschoolbus.un.org/infonation3/menu/advanced.asp || http://mathplayground.com/howto_mode.html ||
 * ===Interactive Websites:=== ||
 * Math Playground: Pie Charts
 * Infonation
 * ===Web Resources:=== ||
 * Math Playground: Mode Video
 * ===Web Resources:=== ||
 * Math Playground: Mode Video