Uma Sequência Didática utilizando os Óleos essenciais para o ensino de Química orgânica na Educação Básica

Abstract

Science teaching, notably in the chemistry field, walks towards the same direction with science as an enabling language for perceiving the different spheres in which the world configures itself. The research was carried out in a public school with 26 third grade high school students. Organic chemistry content was explored to help associate everyday routine with the concepts studied. Essential oils (EO), the ethereal oils, are constituted of complex mixtures of substances with diverse chemical functions. The main objective was to study the contribution of a didactic sequence utilizing the essential oils topics to basic education organic chemistry teaching. This research was of pedagogic intervention type with a qualitative approach. The data collection instrument was a survey with a discursive text analysis (DTA) being utilized in results organization and discussion. The didactic sequence allowed the students to make progress in understanding the social, economic and politic dimension of the subject in addition to internalize concepts of carbon classification, carbon chains and organic functional groups identification.