En los últimos años, todos los países del mundo, vienen realizando reformas sobre sus sistemas de pensiones, básicamente enfrentando el efecto de cambios demográficos; dado que, la esperanza de vida se ha incrementado, la tasa de natalidad se ha reducido y por no haberse sustentado en bases actuariales sólidas; en las cuales, debe haber una correlación entre aportes y beneficios. En el Perú, por los efectos anteriormente mencionados, el Sistema Publico de Pensiones (Decreto ley Nº 19990 Sistema Nacional de Pensiones – SNP), el del Decreto Ley N 20530 (Régimen cerrado a nuevas afiliaciones), ha sido objeto de diversas modificaciones orientadas a lograr su auto financiamiento y tener una mayor equidad entre ambas Normas; sin que a la fecha se haya logrado el objetivo, por lo cual el Estado, tiene que financiar más de la mitad del monto requerido mensualmente para cubrir las ob...

The purpose of the present study was to elaborate and apply a strategy based on the resolution of problems in the achievement of learning of parallel and perpendicular lines in geometrical figures in students of third grade of primary level, curricular area of mathematics. For the application of the strategy a learning session was elaborated in which the empirical modeling and systemic methods were applied. In the foundation we worked with the analytical - synthetic, inductive - deductive and comparative theoretical methods. The execution took into account the techniques of the exhibition, the team work, the collaborative work. In the evaluation, the techniques of hetero-evaluation, co-evaluation and self-evaluation were applied. After the conclusion of the session, it was concluded that the students achieved the learning of parallel and perpendicular lines in geometric figures.