Educational Technology and Copyright Law

From this article, I learned about the laws of copyright. It showed me certain actions that you can or can not do in order to follow these laws. However, it also showed steps that you can take if you are worried about someone else taking your original idea. For example, the moment you created an artwork or photo, it is instantly copyrighted. You now have four rights: 

1. Reproduce the copyrighted work; 
2. Display the copyrighted work publicly; 
3. Prepare derivative works based on the copyrighted work;
4. Distribute copies of the copyrighted work to the public by sale, rental or lending, and/or to display the image.