The Math League
The Math League: Surface Area
This tutorial explains the concept of surface area, and then goes through multiple shapes offering the specific surface area formula for each one.
Alabama Learning Exchange
Alex: Effects of Friction on a Moving Block
Students will move a 2 X 4 inch block with a hook attached across different surface areas. Students will discover how the friction created by these surface areas affect the movement of the block. Students will begin the activity by...
Math2
Math2.org: Areas, Volumes, Surface Areas
This site gives formulas for the area, volume, and surface area of various shapes.