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:

Anytime you square an integer, the result is a perfect square! The numbers 4, 9, 16, and 25 are just a few perfect squares, but there are infinitely more! Check out this tutorial, and then see if you can find some more perfect squares!

Keywords:

  • definition
  • perfect square
  • integer