Jean Piaget (1952-1980) was a Swiss developmental psychologist. He developed one of the most comprehensive theories of cognitive development. He explained genetic epistemology, a concept which refers to "study of developmental changes in the process of knowing and in the organization of knowledge."
Discussion
Jean Piaget's Theory of Cognitive Development of Each Stage
The first stage, which lasts until, the child is about two years old (0-2), called the Sensorimotor stage. Babies in this stage learn about the world through their senses. Cognitively, a baby's biggest sensorimotor development is a sense of object permanence. Have ...