The teaching and learning of numerical sets from pedagogical practices

Abstract

This text reports an experience of pedagogical practice developed in 2020 with 20 students from the 9th grade of elementary school of a school in the municipal network of Poço Redondo (SE), with the aim of diagnostically evaluating the object of knowledge that deals with the sets of natural, integer, rational, irrational, and real numbers studied by them in previous years. For that, in this text, aspects about pedagogical practice, evaluation and discussions about teaching materials made by authors that approach the written theme are discussed. From the development of the mathematical activity, it was possible to identify that the use of teaching materials contributed to the development of student learning through discussions on sets of numbers, carried out in groups and with the whole class. From this execution, it was possible to verify, through the diagnostic evaluation, that the students had doubts in relation to the numerical sets and, therefore, they made mistakes in locating the numbers in each part of the diagram, errors that were used for questioning and dialogues developed with them to resolve such doubts.