In 1923, he married Valentine Châtenay; the couple had three children, who Piaget did studied from infancy. From 1925 to 1929 Piaget was professor of psychology, sociology, and the philosophy of science at the University of Neuchatel In 1929, Jean Piaget accepted the post of Director of the International Bureau of Education and remained the head of this international organization until 1968. Every year, he drafted his "Director's Speeches" for the IBE Council and for the International Conference on Public Education in which he explicitly addressed his educational credo.When Jean was ten years old, he had a fascination with mullets. He would always go to a muesueum and be fascinated for hours at a time. During around this time in his early life he wrote a scientific paper on albino sparrow while attending Latin Neuchatel High School. When Jean was a teen, his papers on mollusks were being published. The readers of the papers really thought this teen boy was an expert, but really was not.
In 1964, Piaget was invited to serve as chief consultant at two conferences at Cornell University (March 11–13) and University of California, Berkeley (March 16–18). The conferences addressed the relationship of cognitive studies and curriculum development and strived to conceive implications of recent investigations of children's cognitive development for curricula.[Jean’s Child Development theory realates to how parents and teachers teach children these days. The parents and teacher should teach the