Abstract

co Empirical evidence is presented on the mental structures and mechanisms necessary for learn-ing the concept of eigenvalue and eigenvector from the linear transformation, using the research paradigm of the APOE (Action, Process, Object, Scheme) theory. The data of the study are the result of the implemen-tation of teaching based on a cognitive model (Genetic Decomposition) located in a regular linear algebra course of a public university in Colombia. The empirical evidence allows to show a refined cognitive model in relation to the key structures and mechanisms, to account for the Processes underlying the eigenvalue and eigenvector Process and to generate discussion in relation to the whole Process. The recommendations for teaching specify the importance of providing various situations involving the linear transformation and its coordination with the Processes: zero vector -not an eigenvector; solution set of T(v)= lambda 0v; null space and determinant.