Abordagem de conceitos químicos por meio de uma estação de tratamento de água (ETA): uma sequência didática para o ensino da química

Abstract

Students that join Chemistry graduation, from Instituto Federal do Paraná – Campus Cascavel, when they start their academic life, they have been presented many learning disabilities in chemistry contents due to the existing deficit of basic chemistry concepts. This results into demotivation on their studies and in the non-continuity of their academic education, interrupting, therefore, their professional formation process, what represents a negative consequence regarding to the demand of qualified professionals in this area in the region. Looking for a solution that can minimize this conflict in the teaching-learning process, it was proposed and tested a pedagogic activity, by using an active methodology, based in the significative learning and in the learning based on problems, through a didactic sequence, contextualized with the theme Water Treatment Station. In this didactic sequence, it is approached many basic concepts of chemistry, administered by several activities of laboratory theory and practice. It is expected, in this sense, to enable a better performance of the students about their learning achievement in the curricular component General and Experimental Chemistry, a discipline of its pedagogical plan, which will be an introductory background of basic concepts of chemistry to underpin other specific curricular components of chemistry during their academic life.