El presente trabajo tiene por objeto esclarecer qué instrumentos teóricos nos proporciona la Teoría Piagetiana en el desarrollo del niño en los niveles educativos. Se realizará un paralelo entre los estadios y las estructuras que construye el Sujeto Epistémico y su paso por ellos. Dentro de este marco, se verá como van construyendo los primeros esquemas de acción mediante la acción senso-motora, a partir de la cual se construye la primera gran estructura del desarrollo mental: la capacidad de representación. Luego durante el periodo Pre-operatorio, el sujeto buscará equilibrar su pensamiento mediante las regulaciones. Cuando son negativas y anulan la perturbación han logrado una compensación que luego, al ser interiorizada, se logra la reversibilidad característica del tercer estadio: operatorio concreto. En éste el pensamiento se caracterizara por organizar lógicamente las representaciones. Una vez que el sujeto ha conseguido desvincularse de lo real para tener en cuenta lo posible se encontraría en el último período: el de las operaciones formales. Palabras clave Estadios Equilibrio Nivel educativo Estructuras ABSTRACT THE THEORICAL INSTRUMENTS THAT THE PIAGETIAN THEORY PROVIDES TO THE EDUCATIONALS LEVELS The purpose of this paper is to elucidate the theoretical instruments provided by the Piaget’s Theory for the development of a child at educative levels. A parallel between the stages and the structures constructed by the epistemic subject, as well as the subject’s transition through them, will be drawn. Within this frame of reference, the means whereby the subject constructs his first schemes of action through sensory motor activity, will be observed. From t his point, the first major mental development structure is constructed -representational capability. Afterwards, during the preoperational stage, the subject seeks a balance in his knowledge by means of regulations. If they are negative, anulling a discrepancy, then a compensation has been achieved. Being internalized, reversibility is reached and the subject would be in the third stage -concrete operational stage. In this stage, knowledge main feature is to organize representations in a logical way. Once the subject is able to abstract from the reality to take into account possibility, he would have reached the last stage -the formal operational stage. Key words Stadiums Balance Educational level Structures