Jean Piaget

Jean Piaget ( 9 August 1896 – 16 September 1980) was a Swiss psychologist known for his work on child development. Piaget's theory of cognitive development and epistemological view are together called "genetic epistemology".
Piaget placed great importance on the education of children. As the Director of the International Bureau of Education, he declared in 1934 that "only education is capable of saving our societies from possible collapse, whether violent, or gradual." His theory of child development is studied in pre-service education programs. Educators continue to incorporate constructivist-based strategies.


Main contributions：
①Non-human development
Neo-Piagetian stages have been applied to the maximum stage attained by various animals. For example, spiders attain the circular sensory motor stage, coordinating actions and perceptions. Pigeons attain the sensory motor stage, forming concepts.
②Origins
The origins of human intelligence have also been studied in Piagetian terms. Wynn (1979, 1981) analysed Acheulian and Oldowan tools in terms of the insight into spatial relationships required to create each kind. On a more general level, Robinson's Birth of Reason (2005) suggests a large-scale model for the emergence of a Piagetian intelligence.


Selected works by Jean Piaget：
The Grasp of Consciousness: Action and concept in the young child (London: Routledge and Kegan Paul, 1977) [La prise de conscience (1974)].
The Mechanisms of Perception (New York: Basic Books, 1969) [Les mécanismes perceptifs: modèles probabilistes, analyse génétique, relations avec l'intelligence (1961)].
Psychology and Epistemology: Towards a Theory of Knowledge (Harmondsworth: Penguin, 1972) [Psychologie et epistémologie (1970).
The Child's Conception of Time (London: Routledge and Kegan Paul, 1969) [Le développement de la notion de temps chez l'enfant (1946)]
Logic and Psychology (Manchester: Manchester University Press, 1953).
Memory and intelligence (New York: Basic Books, 1973) [Memoire et intelligence (1968)]
The Origin of the Idea of Chance in Children (London: Routledge and Kegan Paul, 1975) [La genèse de l'idée de hasard chez l'enfant (1951)].
Mental imagery in the child: a study of the development of imaginal representation (London: Routledge and Kegan Paul, 1971) [L'image mentale chez l'enfant : études sur le développement des représentations imaginées (1966)].

Reference
https://en.wikipedia.org/wiki/Jean_Piaget