As estratégias utilizadas pelos professores de matemática para o desenvolvimento do cálculo mental

Abstract

The present research has the objective to investigate the strategies developed by mathematics teachers in the classroom, to develop the ability of mental calculation in his students. For this we adopted as principal theorists Gentili and Gurgel (2007), Toledo and Toledo (1997), Ribeiro et al (2009), and Rego Rego (2004), Smole et al (2007), among others, and the National Curriculum Parameters (BRAZIL, 1998). Regarding the objectives, the research was characterized by an exploratory study. Regarding the data collection, a case study was performed using as a research tool a questionnaire with open and closed questions. This questionnaire was divided into three parts: I. Identification; II. Professional and educational profile data; III. About the topic investigated. The mentioned instrument was applied during the month of December 2014 to 4 Mathematics teachers of Escola Municipal de Ensino Fundamental Professora Lia Beltrão, located in the urban zone of the municipality of Alagoinha - Paraíba. The results indicate a conception of mental calculation linked to practical activities and "mental calculation", the strategies most used by teachers are problems related to the daily lives of students and the reported difficulty in working with the mental calculation is the lack of interest by the students.