September 161980 Age 84 Parents. While presented in a series of discrete progressive stages even Piaget believed that development does not always follow such a smooth and predictable path. Jean Piaget Theory Of Cognitive Piaget Stages Of Development Jean Piaget Child Development Psychology August 9 1896 Switzerland Died. . The tendency to think that if two events occur simultaneously one caused the other transductive reasoning. Jean Piaget the psychologist and philosopher said The principle goal of education in the schools should be creating men and women who are capable of doing new things not simply repeating what other generations have done Piaget developed a theory of cognitive development that corresponds to his hope for. In Piagets theory the sensorimotor stage occurs first and is defined as the period when infants think by means of their senses and motor actions. Piagets theory argues that we have to conquer 4 stage