Equações de 2° grau: sua história e abordagens didáticas

Abstract

This study has as object of study the 2nd degree equations regarding its history and the way it is approached in some textbooks. In this way, the objective is to investigate the historical elements inherent to the origin of the equation of second degree and the methods of resolution, besi des explaining how this content is approached in some textbooks of the 9th year of elementary school. The methodology adopted in the research is predominantly qualitative of bibliographic review type. As sources of data on this subject, we used authors such as Boyer (2010), Eves (2004), Mol (2013), Guelli (1995), and other texts such as Pedroso's article (2010) and the official document: ―Parâmetros Curriculares Nacionais‖ (National Curricular Parameters) (1998). It was also considered textbooks of the 9th year of Elementary Education such as: ―Matemática‖ (Mathematics) by Edvaldo Bianchini (2011), ―Projeto Teláris: Matemática‖ (Project Teláris: Mathematics) by Dante (2012) and the textbook "Matemática: Compreensão e prática‖ (Math: understanding and practice) by Silveira (2015). It can be stated that, in a general way, textbooks give different methods of quadratic equation resolutions, besides bringing historical elements within the text. In this way, this approach is important considering the current situation of the teaching of mathematics that needs other pedagogical resources, as well as new teaching guidelines that can be used in the classroom in order to make them more attractive and stimulating for students.