How to Use the TI-83 calculator
Creating a Table of Values (please turn up the sound)
For help with solving equations
and inequalities, doing matrix
operations, factoring, simplifying
and much, much more go to:
http://nlvm.usu.edu/en/nav/vlibrary.html
http://www.purplemath.com/modules/index.htm
http://school.discovery.com/homeworkhelp/bjpinchbeck/bjmath.html