ABSTRACT
A psychologist who wishes to consider the nature of structured learning faces a number of difficulties. Most of the studies of learning that have been carried out in controlled laboratory situations have involved materials that have as little structure as the experimenter could manage in constructing a task for his subjects. This chapter deals with the problem of structured knowledge that is only a little more complicated than simple associations. The graph theoretic concept used in the chapter describes only a short step beyond those of ordinary association theory in psychology. There are some features of problem solving and understanding that need a richer set of concepts than these. The chapter examines the idea involved in the relational network as thoroughly as the idea based on graph theory. The different relationships merely require different symbols at the intersections of the network.
