A ELETROQUÍMICA NO ENSINO MÉDIO: EXPLORANDO A PRÁTICA EXPERIMENTAL DA PILHA DE DANIEL NO ENSINO DE QUÍMICA

Abstract

The teaching and learning process needs to be constantly innovated by the teacher. Keeping this process only in its theoretical aspects means consolidating an incomplete and outdated teaching for the student. In this sense, it is up to the teacher to seek didactic tools for the complete consolidation of the teaching. From a more specific point of view, electrochemistry in high school is considered a complex area of chemistry because it involves numerous rules associated with mathematical calculations. However, exploring the teaching of this area with practical proposals consists of a timely and enriching strategy in the consolidation of electrochemistry in high school. In this sense, this study aimed to carry out theoretical and practical interventions in a class containing 22 students belonging to the third year of high school at the Instituto Federal Goiano-Campus Catalão. Two practical scripts were created, tested and applied in the class. From the practical intervention carried out with the six groups of students, it was possible to conclude that the experiment of the oxidation of copper wire with silver ions and the construction of Daniel's biocells with vegetables are effective methodologies to enhance the teaching of electrochemistry. This finding was also evident in the responses given in the post- practical questions, where practically 100% of the students said that the scripts are very interesting to improve the understanding of the theory of electrochemistry, in addition to being able to allow integration with other areas of knowledge such as physics and electrical science. Thus, it is clear that the teaching-learning process of the content of electrochemistry, and of knowledge as a whole, must occur in an inseparable way between theory and practice to ensure a more complete and robust teaching.