Atividades experimentais investigativas para o ensino de Cinética Química: um olhar para a área de Ciências da Natureza

Abstract

The teaching of Chemistry often relies on memorization of information, formulas, and facts, which restricts learning and contributes to students' demotivation. This study adopts a qualitative approach with the aim of investigating the contribution of a didactic sequence involving investigative experimental activities in the teaching of Chemical Kinetics. The research participants were students from a 2nd-year class at a public high school located in Água Boa - MT. The activities aimed to explore the participants' perspectives on experimentation, learning, and the potential for dialogue with other disciplines in the field of Natural Sciences. Throughout the process, several chemical reactions were carried out, deepening the participants' understanding of scientific concepts related to the factors that influence reaction rates. Data collection instruments included questionnaires, observations, and images, which were analyzed through content analysis. The results indicated a better understanding of the factors influencing reaction rates, such as concentration, temperature, catalysts, and the surface area of solid materials, among the participants. Additionally, the study revealed the potential for interdisciplinary integration among the Natural Sciences, enriching the teaching of Chemistry. Through this integration, students were able to establish deeper and contextualized connections, enhancing their understanding of Chemical Kinetics. In this context, the investigative approach with experimental activities proved promising in improving Chemistry teaching, stimulating students' motivation, and promoting more meaningful learning. It is concluded that experimental activities play a fundamental role in teaching Chemical Kinetics, providing students with the opportunity to experience, observe, and manipulate chemical reactions, directly understanding the relationship between factors affecting reaction rates. This approach encourages students to formulate hypotheses, test their ideas, and learn through their own observations, fostering critical thinking and the ability to think scientifically, making the learning of Chemical Kinetics more engaging and significant.