Help learners understand that perimeter and circumference are one in the same. Learners apply their skills to determine the perimeter/circumference of triangles, rectangles, and circles. They then use the same strategy to find the...

This site from MathWorld.com give a formula for a two point trapezoidal approximation for the area under a curve.

This MathWorld site presents a modification of Simpson's Rule called Simpson'e 3/8 Rule.