Estrobocorda: um aparato experimental para o ensino de ondas e assuntos relacionados

Abstract

In this work, we present an experimental apparatus, named "Strobocorda", equipped with electronic and mechanical features, encompassing fundamental topics related to waves, specifically frequency and characteristics of standing waves. Its construction was motivated by the noticeable need to facilitate the teaching of oscillations and related content using a visually appealing device. Alongside this product, we developed a didactic sequence based on inquiry-based teaching, aimed at achieving the addressed concepts in an engaging and appealing manner, prioritizing student participation and appreciation, always seeking students' intellectual freedom. Based on the data obtained from the applications of this product, an analysis indicates optimistic outcomes and surprising details, demonstrating the effectiveness of inquiry-based teaching in the classroom. This approach stimulates the development of coherent reasoning about the addressed phenomenon in a secure, objective, and relaxed manner, while also engaging the classes in the process, without the need for the teacher to present concepts as traditionally done.