Adição e subtração dos números inteiros: uma proposta de sequência didática

Abstract

The theme of our research is on the use of manipulative materials for teaching the set of Integers, here in particular addition and subtraction involving this set of numbers . To achieve this work, we use as theoretical framework the National Curricular Parameters (PCN), authors like Mangili (2007), Meister (2009), Barbosa (2008), Cyrino (2009), Martini (2010), Besen (2006), Silva (2013), Paraíba (2010), PNLD (2011). To accomplish this research , we investigated students who are attending the 8th grade of elementary school to a public school , to check if they understand the concepts involving integers and what are the limitations on this topic . Used as a methodology to guide us throughout the process of this work the case study and participatory research, research tools we use were semi-structured questionnaires and a didactic sequence involving the manipulation of play materials by students . With the verification of the results , we found that the use of concrete materials that aims to work mathematics in a way outside of conventional , in a pleasurable way to learn , the student becomes a participatory agent throughout the process of teaching , awakening their interest and giving meaning to the content studied.