[color=#0a971e][b]Line segments are proportional to the real numbers they can represent.[/b][/color] For a fun applet showing [b]multiplication [/b]via [b]circles[/b], goto [url]http://bit.ly/Multiplication_with_a_Circle[/url] For a fun applet showing [b]multiplication [/b]via [b]triangles[/b], goto [url]http://bit.ly/Multiplication_with_Triangles[/url] For a fun applet showing [b]square roots [/b]via [b]semi-circles[/b], goto [url]http://bit.ly/Square_Roots_via_a_Semi-Circle[/url] [b][i]Have fun![/i][/b] Jonathan Crabtree [url]www.jonathancrabtree.com/mathematics[/url] [url]www.linkedin.com/in/jonathancrabtree[/url]