Proposta de experimento de produção de biodiesel com abordagem em ciências, tecnologia, sociedade e ambiente – CTSA em ensino de química

Abstract

The reaction of biodiesel production is discussed in this paper as a proposal to address recurrent and important issues such as green chemistry, organic functions, chemical bonds, physical and chemical properties, among others. Its foundation lies in the application of this subject for several years in the test of the National High School Exam - ENEM, developed with the purpose of being used as the main way to study higher education in our country, and which is also a standard guide basic educational. Biodiesel production using frying oil as a feedstock can be approached in a purely chemical context, or there is also the possibility of an approach focusing on Science, Technology, Society and Environment teaching, also known as the CTSA approach. In the present proposal, the students will be divided into four teams to perform the experiment, with previously established functions, resulting in a discussion about the experiment in the form of debates, in which previously divided teams should present advantages, disadvantages and perspectives. after the experiment, considering the scientific, technological, social and environmental contexts. Thus, in addition to studying the expected syllabus content at the school level, the use of the CTSA approach will lead to critical thinking of students when considered more than one point of view, as well as enabling greater argumentative capacity and intertwining of the content of students. chemistry with important issues such as environmental protection, responsible use of renewable resources, also contributing to the personal training of the student.

Keywords: Biodiesel. Proposed experiment. CTSA.