Uma abordagem da radioatividade no ensino médio a partir de um estudo de caso

Abstract

Radioactivity is a process in which a nucleus with a certain amount of protons and neutrons can be transformed into another nucleus with different protons and neutrons. We can find various applications and influences of radioactivity in our everyday lives, such as in medicine, industry, agriculture and livestock, making this subject important to be discussed in the classroom. However, despite the relevance of radioactivity in teaching, the subject is often taught in a superficial way, since it is almost always left to be taught in the last months of the academic semester. Given this, this work aims to address this theme with greater emphasis and analyze the development of high school student learning from the application of a case study on the subject in the classroom. This case study was applied to a group of the 3rd year of high school in the technical course of administration of the state technical school Pedro Leão Leal, in the city of São José do Belmonte, Pernambuco. For data collection, an initial questionnaire, a final questionnaire and the presentations of the case solution were used. Through the results obtained, we believe that the use of a case study approaching social issues contextualized on the thematic radioactivity can be an alternative that can contribute to the learning of high school students.