Abstract PACHON ALONSO, Lidia Alejandra; PARADA SANCHEZ, Rosa Angélica and CHAPARRO CARDOZO, Arley Zamir. Reasoning as a Crüsscutting in the Construction of Thought Logical. Prax. Saber [online]. 2016, vol. 7, n. 14, pp. 219-243. ISSN 2216-0159. Abstract In this article disclosed forms of intuitive reasoning employed by the 5th grade students of the Institución Educativa Rural del Sur in the classroom; to identify these forms, three stages were developed initially population recognition took place; secondly, they were