Theory of Jean Piaget on cognitive development, not simply just describe how humans acquire knowledge, but a reflection of how the field of educational psychology at the place of human positions. Previously, the theory that human behavior is better seen in the meet impulses, children are more viewed as small adults who become the object of an adult. In other words "they want on do with and adults can do it". Children in this theory, is not seen as human beings who have their own characteristics and style in the acquiring knowledge. They are like machines that can be in conditioning like an animal trained by a human and environmental conditioning. This puts less people with degrees who should have.

Humanizing humans, that can understand and appreciate the human capacity in constructing knowledge, children in the Piaget's developmental stages, described as a unique human being and has its own way to understand his world. They are not as adequate in terms of stimulus and response, which then puts the kids here as a passive, or teachers and adults who have a role. But Piaget's theory is more to see that children as active, adults and the environment more to provide access to services so that they can grow and develop in its own way and understand the world through stages that can be estimated.

The theory of cognitive development, able to change their views on learning experience equated, became individualization of learning experiences. Children who have the ability to interpret their world by learning more meaningful