O ensino de ecologia mediado pelo conceito unificador energia: o biodigestor enquanto modelo didático para uma abordagem interdisciplinar

Abstract

This work held through a participant observation research, seeks to instrument for the teaching of Natural Sciences (CN) involved young people from regular high school to a public school in Araucaria -PR. The objective was to establish strategies for use of common concepts in the CN, such as the matter energy, which, because they have a highly interdisciplinary feature, can be worked in the classroom in various disciplines. Thus demonstrates the possibility to deepen and widen the discussions on this concept in biology courses, however, emphasizing also the language of these contents in other CN. To achieve this goal it was proposed to build a pedagogical didactic model of biodigester that supported the theoretical content expository mode of working in the classroom. The work presented here was designed to contemplate the two fundamental axes recommended by NCP to the CN teaching: contextualization and interdisciplinarity. The contextualization occurred in two ways: through discussion in the classroom about a local industry, related to the topic discussed, and for conducting experiments that allowed the visualization of the formation of gas due to the decomposition of organic matter used in biodigester. The interdisciplinarity, in turn, was explored in the context of an approach in which natural phenomena, to be glimpsed fully, lack the integrated view of various disciplines. Emphasis is given to the connections between processes of the decomposition of organic matter and consequent production of gas which can be used, for example, in the production of electricity.