Proposta de atividades experimentais para o entendimento de conceitos de cinética química

Abstract

Chemistry is one of the areas of science which the students have found more difficulties to understand the theoretical fundamentals. However, many educators have been working on elaborate experimental classes using alternative materials for application in high school chemistry education. In this sense, the present work describes the development of practical classes as a tool for improving teacher quality and classroom practice, to facilitate students' understanding of the theoretical content of chemical kinetics concepts. To make chemistry easy conducting experiments in class, with discussions before, during, and after the experiments is an effective and enjoyable way of moving from passive to active learning. However, classroom experiments might be expensive. In order to see the effect of the chemical reaction speed, nature and concentration of reactants and temperature. Alternative materials were used for the experimental classroom: products for hair treatment which contains hydrogen peroxide. The results showed that those easy-found products can be used in experimental classroom efficiently in order to improve the understanding of chemical kinetics concepts, allowing the teacher to use cooperative learning methods to further improve it.