O uso do tangram em área e perímetro de figuras planas: um estudo de caso com discentes do 8° ano em uma escola do município de São Raimundo Nonato-PI

Abstract

The article in question addresses the complexities inherent to the Mathematics learning process, with a particular emphasis on Elementary Education. Specifically, it focuses on practical experiences associated with the contents of Area and Perimeter of flat figures, with 29 8th grade students as research subjects. The objective of the research was to investigate the potential of using Tangram in teaching Area and Perimeter, as well as the various difficulties faced by students in understanding such subjects. The research was conducted in a municipal school located in São Raimundo Nonato, Piauí, and is characterized as descriptive-exploratory, with a qualitative-quantitative approach. The procedures adopted were: a bibliographical survey and a field study, which was divided into observation of daily life in the classroom, application of a pre-test, execution of the workshop and application of a post-test, to analyze the results obtained. In the study in question, the following were used as a basis: Maia (2011), Rocha (2022), Ribeiro et al. (2012), Sousa (2023), Berger (2013), Benevenuti and Santos (2016), Grando (2000) and BNCC (2017). The results obtained highlight the initial difficulties encountered by students, especially with regard to understanding concepts such as area, perimeter and identification of flat figures. Notably, by adopting a didactic and cooperative approach, involving the use of Tangram, students showed a more active and reflective participation during the learning process. This approach provided a conducive environment to overcome obstacles, promoting a more solid understanding of the geometric concepts covered.