文章基本信息

标题：Instrumentalização do artefato simbólico equações do 1º grau com duas incógnitas em um ambiente não digital
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作者：Roberta dos Santos Rodrigues ; Ana Beatriz Pinheiro Lira ; Ewerly Reis Conceição 等
期刊名称：Research, Society and Development
电子版ISSN：2525-3409
出版年度：2022
卷号：11
期号：14
页码：1-13
DOI：10.33448/rsd-v11i14.36205
语种：English
出版社：Grupo de Pesquisa Metodologias em Ensino e Aprendizagem em Ciências
摘要：This article aims to analyse the process of instrumentalization of the symbolic artifact 1st degree equation with two unknowns in 8th grade elementary school students. The theoretical framework used was the Instrumentation Theory from the perspective of Pierre Rabardel. With a qualitative approach and an action-research design, the data were collected from observation, audio and video recordings and material produced by the students. Recognizing that the graphic representation of a 1st degree linear equation with two unknowns is a straight line in the Cartesian plane is the main objective of an instrumentalization process of this mathematical object and constitutes the starting point of the phenomenon of Instrumental Genesis. From the observations took, it was possible to point the groups realized that, even though each one has constructed rectangles of different dimensions, what evidently resulted in tables with different values, the algebraic expression to represent the regularity observed in the tables was the same, diverging only in the letters chosen by each group to represent the rectangle dimensions. Moreover, the groups realized their graphic representations diverged only in the chosen points but it was the same line, thus demonstrating the instrumentalization process of the present mathematic object.
关键词：Instrumentation;1st degree linear equation with two unknowns;Graphic representation;Teaching;Symbolic artifact.