A study on the estimation and resolution of mathematical tasks by fifth grade students

• Autor(a) principal: Monger, Wagner
• Data de Publicação: 2021
• Outros Autores: Sander, Giovana Pereira, Tortora, Evandro
• Tipo de documento: Artigo
• Idioma: por
• Título da fonte: Revista de Educação Matemática (Online)
• Texto Completo: https://www.revistasbemsp.com.br/index.php/REMat-SP/article/view/127
• topic: Estimativa; Sentido de Número; Anos iniciais do Ensino Fundamental

Estimative can be considered as a kind of mathematical calculation to be worked on in the early years of elementary school in situations where we understand the relationship between the context and the calculation necessary to solve it with approximate values. Based on this, we seek to investigate the following research problem: What were the notions of estimative of students of the 5th grade of elementary school were understood and applied in situations of calculation? This research aimed to analyze how 5th grade students understand the relationship between the context of the problem and the calculation needed focusing on the use of estimative to solve mathematical tasks. Fifty students from two classrooms of the 5th grade of elementary school of a state school in Bauru, SP, participated in this research. The instruments used were: Questionnaire, which aimed to characterize the participants in terms of age, gender as well as their perception of performance in Mathematics in general and 2) Mathematical tasks, which aimed to investigate the use of estimative by students. The results obtained with these instruments showed that students are unable to use estimative as a more efficient strategy for solving the mathematical tasks, placing more emphasis on calculations whose results are accurate, more specifically, on algorithms. So, we can conclude that, in general, students who participated in this research cannot use the estimative as a more efficient strategy to solve the presented mathematical tasks