Teachr.org and the Legacy Foundation does not own copyright on articles, texts, lesson plans, or solutions posted on Teachr.org. You never need to ask permission to reproduce any of the content just mentioned.

Teachr.org grants free access to our content in the same sense as free software is licensed freely. This principle is known as copyleft. The content can be copied, modified, and redistributed so long as the new version grants the same freedoms to others and acknowledges the authors of the Teachr content used (a direct link back to the article satisfies our author credit requirement).

IMPORTANT NOTE: The interactive Flash learning activities on Teachr.org, all of which were created and developed by KnowledgeGain Publications, are copyrighted material and may not be digitally duplicated by anyone for sale. They can be viewed by anyone at anytime, both at home, in the classroom, or in the workplace, but you may not create digital copies of these Flash activities without written consent from Knowledge Gain Publications. Nor can any individuals or organizations create outside content or material based on this copyrighted interactive material. The copyright is owned by Knowledge Gain Publications.

Any actions taken by the user counter to current US copyright laws will be prosecuted to the extent of those laws.