WNET Middle School Math Lessons
Real-World Ratio and Rate Reasoning: How to Power the Skate Park

 

After a brainstorming session at Slider's house, the CyberSuqad decides to use solar panels to collect electricity and must calculate how much area they need for the panels using some proportional reasoning. How will they do it? Watch this video to find out.

 

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

 

  • Describe the way solar energy works in the video. How does the solar cell create electricity and how does the battery help this process?
  • How many lights need solar power in the skate park?
  • How many solar panels are needed and how many batteries are needed to charge the lights?