Análise de erros na adição e subtração de frações: um estudo das dificuldades em um turma do 7º ano do ensino fundamental

Abstract

This research analyzed the errors made by students while carrying out activities involving the operations of adding and subtracting fractions. To this end, the objective was to understand the students' main difficulties based on possible mistakes they made. The methodology used was of a qualitative nature and as data collection procedures we used a diagnostic test, field notebook and photographic records, in addition, we carried out an unsystematic observation during the research. To analyze the data, we used the Error Analysis Theory from the perspective of Cury (2019) and to complement it, the content analysis of Bardin (1977). The research was carried out in a 7th year elementary school class and was divided into three moments. Initially we did a diagnostic test, then we taught a class and finally the students solved exercises on the board. It is worth noting that during these moments, the teaching material called Mural das Frações was used. As for the results, we revealed difficulties in learning to add and subtract fractions based on the data produced by the participants during the established moments. In this way, we hope to create subsidies that will help educators understand how to overcome students' difficulties. Furthermore, we seek to raise concerns regarding the topic, which will enable future researchers to develop work that can overcome the problems highlighted in the development of this research.