Division on the Reals with a Circle
Line segments are proportional to the real numbers they can represent.
For a fun applet showing multiplication via circles, goto http://bit.ly/Multiplication_with_a_Circle
For a fun applet showing multiplication via triangles, goto http://bit.ly/Multiplication_with_Triangles
For a fun applet showing square roots via semi-circles, goto http://bit.ly/Square_Roots_via_a_Semi-Circle
Have fun!
Jonathan Crabtree
www.jonathancrabtree.com/mathematics
www.linkedin.com/in/jonathancrabtree