There is video.
Then, there is Virtual Nerd.

We take video-supplemented instruction to the next level, helping educators personalize instruction based on student needs.

Get started for free!

School Edition
Home Edition

Did you know?

You can try Virtual Nerd completely free of charge.

Find out more

Note:

Want to find the volume of a sphere? If you know the radius of the sphere, you can simply plug that value into the formula for the volume of a sphere and simplify! This tutorial shows you how!

Keywords:

  • volume
  • sphere
  • radius
  • 2/3 volume of cylinder
  • 2r