Uma aula sobre o conceito de entropia no ensino médio

Abstract

Teach concepts of Thermodynamics for high school students, especially those related to the Second Law, is no easy task,considering a few activities proposed by the textbooks to the approach of those concepts in the classroom. In order to minimize this difficulty, this dissertation has the goal of proposing a didactic unit contemplating the concept of entropy. First, we show a literature review to present central ideas from some works that contributed for the teaching of thermodynamics, which guided us in the dissertation. In sequence, we present our theoretical references which endorsed our proposal. Through a literature review and a theoretical reference, as a way to minimize this difficulty checked in understanding the concept of entropy, and also trying to reduce the evident abstraction in the majority of textbooks analyzed in this dissertation, we propose a didactic unit which includes the sequence of the said concept interspersing with videos which show ludic experimental demonstrations. Next, for to measure the contribution of our proposal in producing of the didactic unit, we investigated through an analysis developed through a field research applying questionnaires before use of the product Instructional and, then, at students of four distinct classes of Salesiano Dom Bosco College. of concept We show the conclusions of the present dissertation, once is such an important subject to understand the behavior of nature, that transcends the limits of physics. The approach by teachers and by the textbooks ought to be richer in experimental practice for facilitating the understanding of concept of entropy to the detriment of abstract and simplistic information.