Maleta didática : máquina de corrente contínua aplicada no ensino de Eletromagnetismo para o Ensino Médio

Abstract

This work proposes the construction of a didactic case using a direct current machine to assist the teaching-learning process in the field of electromagnetism for high school, both in physics and in electrical machines. The didactic product was used in practical classes of electromagnetism and electrical machines of the technical course on Industrial Automation integrated to high school of the Instituto Federal de Mato Grosso - Campus Avançado Sinop. The case was constructed using a direct current machine similar to two-speed blenders. The windings were connected to terminals to facilitate the circuit connections through banana connectors. Electric circuits, voltage and electric current, Faraday’s law of induction and some characteristic features are some of the topics discussed, from the perspective of the Meaningful Learning Theory, with the support of this case. The influence of the didactic case on the students’ meaningful learning was measured through a quasi-experimental design. The class that witnessed the practical demonstrations had a superior performance compared to the class that only had traditional classes, without practical demonstrations.