This man distinguished between physical, social, and logical-mathematical knowledge in his theory of genetic epistemology. This psychologist performed an experiment involving tall and short beakers, which demonstrated the concept of conservation. He 
This man distinguished between physical, social, and logical-mathematical knowledge in his theory of genetic epistemology. This psychologist performed an experiment involving tall and short beakers, which demonstrated the concept of conservation. He postulated that adaptation occurs through accommodation and assimilation of knowledge into internal schemas. He theorized periods characterized by magical thinking and object permanence. For 10 points, name this Swiss psychologist who posited the sensorimotor and preoperational stages of development in children.
This man distinguished between physical, social, and logical-mathematical knowledge in his theory of genetic epistemology.
Jean Piaget