What is Jean Pirget's Schema theory and how does it effect how we receive information?

https://www.youtube.com/watch?v=mzbRpMlEHzM

WHAT IS JEAN PIRGET'S SCHEMA THEORY ? AND HOW DOES IT EFFECT HOW WE RECEIVE MESSAGES? 
This is a 2min demonstration and explains a whole lot about how we receive messages can be distorted by our prior knowledge. While discussing my personal schema with my psychologist, I found this theory really interesting and it explained why I react the way I do in certain circumstances. 

Click on the link and see if this simple explanation                                                                                                                 helps you too!