O Ensino das Equações de 1° Grau em um Estudo do Livro Didático

Abstract

First-degree equations are mathematical sentences that establish an equal relationship between known and unknown terms, represented in the form: ax + b = c. From this perspective, this study aims to investigate the teaching of first degree equations in a textbook study of the 7th year of elementary school. To this end, the textbook Trilhas da Matemática 7° ano - Fausto Arnaud Sampaio (2018) will be used as a source of study, chapter referring to the 1st grade equation, with the aim of proposing an analysis that explains the teaching of this content. The research in question is located in the mathematical field of Algebra. For the development of the proposed objectives, support is sought in the theoretical-methodological epistemological contributions postulated by NOGUEIRA (2008), LEITE (2019) SILVA (2019), SANTOS and MENEZES (2015), BOSH and CHEVALLARD (1999), FERNANDES (2011), BAUMGART (1992), TATTO and SCAPIN (2004), GOUVEIA (2023) and FERREIRA (2013). With a qualitative nature, this research makes it possible to contribute to studies in the algebraic field and to the teaching of 1st degree equations. Through the analyzes carried out, it is observed that the teaching material addresses challenging teaching, coverging with BNCC skills.