The intention of the investigation it was to determine the influence of the strategy of leamings, based on the method of solution of problems, in the improvement of the capacity of mathematical reasoning of the students of the first degree of Secondary Education of the Educational Institution “Jesus Nazareno” of Chocope, in 2007. This investigation is of experimental type and inside this one the Quasiexperimental one, with groups I experiment and control, having as population target 79 students of the first the degree of Secondary Education, with an average age 12 years, distributed in three sections “A”, ”B” and “C”. At random one determined that the section “C” is the experimental group and the section “B” the group control, with a sample of 53 students, 27of the experimental group and 26 of the group control likewise, they were in use as instruments of I gather...