The Construction of Reality in the Child Author:Jean Piaget One of Piaget's most significant works: — "The study of sensorimotor or practical intelligence in the first two years of development has taught us how the child, at first directly assimilating the external environment to his own activity, later, in order to extend this assimulation, forms an increasing number of schemata which are both more mobil... more »e and better able to intercoordinate... We must now study the second aspect of the evolution of sensorimotor intelligence ... it is the subject's own interpretation of things which we must now try to analyze." (From the introduction)« less