What is "intellectual property" ?

 I believe an "intellectual property" will be the the right of your mind. What I mean by it is that whatever comes from you mind has right and belong to you. First, because it is unique and comes from you and has to stay unique because it shows you existence and how you contribute to the world you belong to. No one has the right to steal and publish what you build with your reflexion because it had been done with the work of your nerves and meninges.
A " expect's" definition of intellectual property is one from WIPO (World Intellectual Property Organization). According to the website the "Intellectual property (IP) refers to creations of the mind such as inventions, literary and artistic works, and symbols, names, images, and designs used in commerce.

IP is distributed into two classes:  Industrial property,which consist of inventions, trademarks, industrial designs, and geographic indications of source; and Copyright, which includes literary and artistic works such as novels, poems and plays, films, musical works, artistic works such as drawings, paintings, photographs and sculptures, and architectural designs.  Rights related to copyright include those of performing artists in their performances, producers of phonograms in their recordings, and those of broadcasters in their radio and television programs

Also examples of intellectual property we observe everyday  is the work we are using from academic research such as books, journal articles, said in movie and video we are watching in class....

However we are using all of those properties  for education  the concept of PI will not change at all because we have to respect the laws and rights stated for the copyright and fair use of any documents and sources  which from someone else.