A construção de modelos como proposta para o ensino de geometria molecular

Abstract

This work investigates the use of molecular models as a didactic strategy, based on active methodologies, to facilitate the teaching of chemistry in high school, specifically addressing the topic of molecular geometry. Given the difficulty many students face in visualizing abstract concepts, the construction of physical models was proposed as an innovative solution to make learning more accessible, concrete and meaningful. The methodology applied, based on active learning, included the making of molecular models by students in a first-year high school class, using simple materials such as Styrofoam balls and toothpicks. The process involved a theoretical review, the formation of groups, the construction of the models and the application of a questionnaire to assess the impact of the activity. The results showed that the practical and visual approach provided a better understanding of the theoretical concepts, as well as significantly increasing student engagement and participation. In this way, it can be seen that the use of molecular models, combined with active methodologies, is a highly effective pedagogical practice, and its continuation and expansion in chemistry teaching is strongly recommended. In this sense, it is believed that this study could become a fundamental reference for teaching and research in the area of Chemistry Education.