<P> Jean Piaget ( French : ( ʒɑ̃ pjaʒɛ ) ; 9 August 1896 -- 16 September 1980 ) was a Swiss clinical psychologist known for his pioneering work in child development . Piaget 's theory of cognitive development and epistemological view are together called `` genetic epistemology '' . </P>
<P> Jean Piaget ( French : ( ʒɑ̃ pjaʒɛ ) ; 9 August 1896 -- 16 September 1980 ) was a Swiss clinical psychologist known for his pioneering work in child development . Piaget 's theory of cognitive development and epistemological view are together called `` genetic epistemology '' . </P>
who wrote the book the process of educational in 1960
who wrote the book the process of educational in 1960
Jean Piaget
Jean Piaget