University of Regina (Canada)
University of Regina: Math Central: Surface Area to Volume Ratio
Students will investigate the relationship between surface area and volume and their application to the inner workings of real life organisms.
Houghton Mifflin Harcourt
Holt, Rinehart and Winston: Homework Help Independent Practice: Spheres
Get independent practice working with spheres. Each incorrect response gets a text box explanation and another try. Correct responses are confirmed.
Oswego City School District
Regents Exam Prep Center: Spheres
What is a sphere? Find a definition, example images, and formulas to help you determine volume and surface area given the radius.
National Council of Teachers of Mathematics
The Math Forum: Surface Area of a Sphere
This site from Dr. Math at the Math Forum provides a concrete way to prove to students the formula for the surface area of a sphere.
Calculator Soup
Calculator Soup: Surface Area Calculator
Online calculator to calculate the surface area of geometric solids including a capsule, cone, frustum, cube, cylinder, hemisphere, pyramid, rectangular prism, sphere, spherical cap, and triangular prism
National Council of Teachers of Mathematics
The Math Forum: Ask Dr. Math: Sphere Formulas
This site from the Math Forum provides the formulas for finding the area and volume of a sphere.