Section 1.1 Reference Topics

PASCAL'S TRIANGLE:
An interactive version of Pascal's Triangle.
http://mathforum.org/dr.cgi/pascal.cgi

Here is another site on Pascal's triangle:
http://mathforum.org/web.comments/ladja.pascal.html

PROBLEM SOLVING:
This site give a nice introduction to problem-solving.
http://206.152.229.6/Problems/strategies.html

A site which lists other sites on mathematical puzzles:
http://www.thinks.com/webguide/mathpuzzles.htm