A importância dos metais de transição para o organismo vivo: análise da temática nos livros didáticos do Ensino Médio e uma alternativa para o processo de ensino aprendizagem

Abstract

This work aims to highlight the importance of transition metals for the human organism, proposing an interdisciplinary approach between Chemistry and Biology as an alternative in the teaching-learning process in High School. The research, qualitative and bibliographic in nature, diagnoses nine textbooks used in High School regarding how they address this theme, highlighting the superficiality with which transition metals are presented, generally restricted to structural and technological aspects, without exploring their essential biological functions. The study demonstrates that elements such as iron, zinc, copper, and cobalt play crucial roles in the maintenance of life, being involved in fundamental metabolic processes. The absence of contextualization and interdisciplinarity in the teaching of these contents contributes to the students' lack of interest in Chemistry. As an alternative, the work proposes an active and contextualized methodology through a lesson plan, aiming to promote more meaningful learning connected to the students' reality. It is concluded that valuing themes such as transition metals, with an emphasis on their biological implications, can awaken greater interest in the students and thus aid in the teaching-learning process of Chemistry.