Polinômios: teoria e aplicações imagens simétricas através de interpolação de lagrange

Abstract

In this work, we approach the theme Polynomials that is inserted in the curriculum of the third grade of High School. In general, this topic is reserved to be presented to the student in the fourth quarter of the school year. Thus, due to the large volume of content proposed, this important topic often ends up being exposed inefficiently. In order to provide support material to the teacher and to provide the student with interest / motivation for the theme, we present several applications, involving from nature and day-to-day problems, more elaborated themes such as higher order arithmetic progressions to themes more advanced features such as polynomial interpolation and curve fitting. In addition, as an increase in the support material for teachers, we propose a methodology involving polynomial interpolation, more precisely, the Lagrange interpolation formula. The methodology is divided into 5 (five) classes, each with its specific objective, for example, in the third class, we propose an activity related to the construction of symmetrical figures using the Lagrange polynomials.