To speak about evaluation is to mention something that has always been part of the educational world, even if it is an excuse, as a problem or as a hope. That applies to both the individual and the collective. In first case, the evaluation is understood as a collective judgment, is presented as an excuse that justifies all parts of an educational process, from its initial objectives to its results, through its contents and the agents who have developed this process, teachers, educational psychologists, educators, etc. But, what do we mean by evaluating?, mark a place on a scale?, indicate: Colombia, 390 points in mathematical competence on PISA scale and from there, establish criticism of the system? The evaluation can serve as an excuse but does not make sense by itself, as a result of the set of relationships between the objectives, methods, the pedagogical model, students, society, the teacher, etc.