Jean Piaget was a Swiss psychologist famous for his pioneering studies
             of the development of thought processes, particularly in children. He is
             generally considered to be one of the most important figures in modern
             developmental psychology and his work has had a great influence on
             educational theory and child psychology. He received many international
             honors for his work, including seven scientific prizes and 25 honorary
             Piaget was born on 9 August 1896 in Neuchtel, Switzerland. He
             published his first scientific article about an albino sparrow when he was
             only 10 years old, and by the age of 15 he had gained an international
             reputation for his work on molluscs. Subsequently he studied at the
             universities of Neuchtel, Zurich and Paris, obtaining his doctorate from
             Neuchtel in 1918. His interest then turned to psychology and he spent two
             years at the Sorbonne researching into the reasons why children fail
             intelligence tests. The results of this research gained him the
             directorship of the Institut J.J. Rousseau in Geneva in 1921. During his
             subsequent career Piaget held many academic positions, some of which were
             concurrent. He was Professor of Philosophy at Neuchtel from 1926 to 1929;
             Professor of Child Psychology and History of Scientific Thought at Geneva
             University from 1929 to 1939; Director of the Institut Universitaire des
             Sciences de l'Education in Geneva from 1933 to 1971; Professor of
             Psychology and Sociology at Lausanne University from 1938 to 1951;
             Professor of Sociology (1938 to 1952) and of Experimental Psychology (1940
             to 1971) at Geneva University; Professor of Genetic Psychology at the
             Sorbonne from 1952 to 1963; and Director of the International Bureau of
             Education in Geneva from 1929 to 1967. In 1955, with the help of the...