According to Piaget's theory, the grouping of isolated behaviors and thoughts into a higher-order system is known as organization. This concept is a fundamental part of Piaget's theory of cognitive development, which explains how children develop their thinking and reasoning skills over time. Organization refers to the process by which children cognitively organize their experiences by grouping isolated behaviors into a higher-order cognitive system. This allows them to make sense of the world around them and to develop more complex and sophisticated ways of thinking.