WNET Middle School Math Lessons
Sampling and Statistics: Getting Rid of the Trash in Perfectamundo

The Challenge: Perfectamundo isn’t so perfect anymore – the trash is out of control! The Mayor has asked the CyberSquad to get rid of a mountain of trash—exactly 9/10 for the Jubilee. How will they do it?

Keyboard Shortcut Action
Space Pause/Play video playback
Enter Pause/Play video playback
m Mute/Unmute video volume
Up and Down arrows Increase and decrease volume by 10%
Right and Left arrows Seek forward or backward by 5 seconds
0-9 Fast seek to x% of the video.
f Enter or exit fullscreen. (Note: To exit fullscreen in flash press the Esc key.
c Press c to toggle captions on or off

Discussion Questions:

  • What problem did the CyberSquad face with the mountain of trash?
  • How do they figure out how to tackle this monumental problem?
  • What kind of numbers do they use to describe the trash?