Theory of knowledge according to Piaget. Resumen Para hacer un acercamiento a las formulaciones piagetianas sobre el sujeto, hay que comenzar aclarando que Piaget no es un psicologo sino un “epistemologo genetico” como el mismo se autodenomina, con lo que podemos entender que se interesa por conocer e investigar el origen y la naturaleza del conocimiento, y como se da este a traves del desarrollo; lo cual muestra claramente sus prioridades intelectuales como biologo y filosofo. Para lograr estos objetivos, Piaget partio de modelos basicamente biologicos, aunque su sistema de ideas se relaciona de igual forma con la filosofia –en especial con la teoria del conocimiento- y con otras ciencias, como la biologia, la logica y la matematica. Palabras clave : etapa sensorio-motriz, preoperacional, operaciones concretas, operaciones formales. Abstract For exposition of the Piaget formulations about the subject, we start by clarifying that Piaget is not a psychologist but a genetic epistemologist as it describes itself, with what we can understand he is interested in knowing and investigate the origin and the nature of knowledge and how this occurs through development; which clearly shows their intellectual priorities as biologist and philosopher. To achieve these objectives, Piaget departed basically biological models, although his system of ideas is related in the same way philosophy — especially with knowledge - theory and other sciences, such as biology, logic and mathematics. Key words: sensorial and mortitional phase, pre-operational stage, concrete operations stage, formal operations stage.
