Investigando o entendimento e as estratégias de resolução de problemas sobre Função Afim de alunos da 3ª série do ensino médio de uma escola estadual do Município de Mamanguape - PB

Abstract

This research aims to investigate whether students in a class of 3rd grade of high school at the State High School Senador Rui Carneiro, in the city of Mamanguape - PB developed the skills and expertise to understand and solve problem situations on the content in order to function. As to the objectives the research is characterized as descriptive and exploratory. Regarding the investigative work research can be characterized as a case study, whose instruments of data collection were a questionnaire and a semi-structured diagnostic interview. The diagnostic questionnaire consists of personal issues, beyond the proposition four problem situations, finalized by open about what function, in mathematics issue. A semi-structured interview allowed a better understanding of the replies to the questionnaire diagnosis. The results of this study suggested that the participants of the research students have difficulties in reading and understanding of mathematical problems and hence showed difficulties to solve them. This occurred mainly because they do not understand well the concept of affine function.