The Morphogenesis of Knowledge and the Structure of Learning.

The article provides a historical analysis of the development of concepts and bodies of knowledge. The historical development of the concept of motion illustrates that there is a hierarchal progression in the development of complex concepts. This progression contains the following two dimensions. The first dimension is concerned with the progressive step-by-step dependency of one concept on another concept. The second dimension of the progression pertains to the increasing degree of complexity in the arrangement or ordering of the concept.