Trançados do siknõ:

Abstract

The present research had as objective to present the sociocultural practices of the interweaving of the straw (leaflets) of the "eye" (bud) palm of the buritizeiro during the process of confection of the cofó - siknõ in the perspective of the studies and learning of the mathematics. The research was based on the qualitative ethnographic approach, and was carried out with the elderly women from the Nrõzawi-Porteira village of the Xerente people, located in the Tocantins state of Tocantins, with the research question: In what didactic and pedagogical terms were the interlacings of the straw ) Of the "eye" (bud) of the buritizeiro palm tree that form the cofó-siknõ Xerente provide the theme of studies and learning of mathematics? The field of Ethnomathematical theories was proposed, proposed by D'Ambrosio in order to provide discussions and reflections arising from the context investigated and the making of a cultural artifact of this people, which was the Sikno. From the Sikno's work it was observed that this artifact plays several social, cultural and useful roles for the natives. In this sense, it was intended to analyze the mathematics present in this artifact. From the educational dimension suggested by Ethnomathematics, in order to think about mathematical learning actions for indigenous and non-indigenous schools, one possibility would be the exploration of the geometric concepts evidenced from the preparation and Finalization of the Sikh, which were the symmetries, the perpendicularity, the elliptic present in the format of the Sikhno, the oblique drawing that is sported when the strawberry (leaflets) of the buritizeiro intersect in the form of a cross, and finally the formation of successive rectangles. In the light of this, we conclude that the thinking and the mathematical making of the ancients Xerente reorganized a new knowledge that can promote changes to the geometrical sense from the observations of the sketches of the siege evidenced in these tracings the distinct geometric forms present in nature, especially in the wild animals, As well as their environment of transferring coexistence. Thus, the skilled hands of the elderly transfer to the Sikhs those geometric forms which were previously only observed in nature and which then become objects of investigation in the teaching and learning of school mathematics in indigenous and non-indigenous schools.