Modelagem & linguagem científica no ensino médio

Abstract

This research aims to study the Scientific Language of high school students, expressed in the written productions in order to specify to what extent Mathematical Modeling contributes to the development of the Scientific Language. For this purpose, the procedures of Educational Research Mapping were used, constituting four Maps: identification, theoretical, field and analysis. The theoretical map, constituted of theoretical references, explains about Modelling Mathematical, Language and Scientific Language, theoretical contributions of both empirical and analytic base. Language is understood as one of the semiotic systems, these that make a culture distinguish itself from the others because it acts as a codification system for others. The field map, composed from a survey about the production of the Scientific Initiation in a High School public institution, contains 10 productions elaborated between 2004 and 2012, in which Modelling Mathematical was used in the process. From them, fragments were extracted in order to constitute the Guide Map of each production, organized in the three phases of Modelling Mathematical. For the data analysis, four categories were chosen: linguistic aspects and mathematical aspects: technical taxonomy, semantic-grammatical processes, visual representations and mathematical literacy. The results and discussion are contained in the analysis Map. The results indicate that students make use of scientific language in the expression of the process of Modelling Mathematical using simultaneously linguistic aspects and mathematical aspects, both complementary in the production of meanings. In textual construction, permeated with semiotic resources, they make use of languages whose distinct functions preponderate, that is, they add another meaning to the existing one. The development of the skills related to mathematical and scientific literacy was perceived. Thus, through the use of measures of association and data correlation and standardized score, five of the productions obtained general performance (average of four categories) above the average score of high school students, thus characterizing the use of the Scientific Language. Thus, it is defended the thesis that Mathematical Modeling contributes to the development of the Scientific Language of High School students since the competent implementation of the mathematical meaning in the context was evidenced, when verbal expression and visual representations were used in a way interdependent.