http://www.education2000.com/demo/demo/botchtml/areacirc.htm
http://www.youtube.com/watch?NR=1&v=YokKp3pwVFc
The Egyptian Method: Draw a large square around the circle. The length of one side is equal to the diameter. Divide the large square into 9 small squares. The circle covers approximatly 7/9 (seven ninths) of the circle. So A= 7/9 * d
HW - Draw a diagram for #4 and #5 on "How can we calculate the area of a circle?"
Do Ms. Gesner's Bike HW problem from yesterday if you didn't already do it.
