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• What is this activity?
  
• What will I learn?
  
• What do I need to know?
  
• What more can I learn from my tree?
  
• What experiments can I do with the model?
  
• What can I learn from a forest model?
  
• What words do I need to know?
  
• Show me other web pages on this topic!
  
• Take a short quiz!

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  Materials for Teachers
• A note to teachers
  
• Resources Downloads
  
• Teaching Tips
  
• Evaluation Methods
  
• Links to national standards
  

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  Related Links
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If you don't have the spreadsheet you can use these JavaScript calculators. Choose the calculator for your type of tree. 

Hard Hardwood

Soft Hardwood

Southern Pine

Southern Pine Piedmont

Sweetgum

Yellow Poplar