Jean Piaget's theory, the first stage of cognitive development to our 2nd birthday. Sensory and motor processes are developed and knowledge of the world around him is acquired. See concrete operational stage; formal operations; preoperational stage.
Jean Piaget's theory, the first stage of cognitive development to our 2nd birthday. Sensory and motor processes are developed and knowledge of the world around him is acquired. See concrete operational stage; formal operations; preoperational stage.