Joe has just learned the characteristics of a circle and looks at his family as a circle, his friends as a circle, the loop around the city as a circle. this best illustrates piaget's concept of:

It best illustrates Piaget's concept of Schema
.According to Piaget,  A schema refers to a pattern or representation that people held when we try to understand everything around us.The existence of schema indicates that the children already develop a certain level of cognitive ability, even though it's still imperfect.

Absolute !