Textos de divulgação científica no ensino de biologia: possibilidade de uso da leitura para construção de conceitos em uma unidade didática

摘要

This work aimed to develop, apply and evaluate a teaching strategy focused on reading Scientific Dissemination Texts (TDC) as a possible tool for the teaching of Ecology concepts in two classes of the third grade of High School in a Public School from Natal-Rio Grande do Norte-Brazil. The main objective of this study is to contribute to the construction of meanings, to facilitate the understanding of concepts and to broaden students' scientific vocabulary through the development of activities that use scientific dissemination texts on environmental themes. This research is based on a methodology of qualitative and quantitative approach with elements of action research and whose actions were developed in two moments: the first - development of an initial pilot project, with 4 stages and the second - the integral project, properly Said, with 5 steps. The contents worked in the two moments of the research are basic concepts of Ecology as: food chains, habitat, ecological niche and energy transfer in ecosystems. The results were analyzed from categories constructed or adapted to meet the objectives of the research. The pilot project was based on the analysis of two classes, one in which TDC was used and another in which it was not used. The more elaborate and consistent written production of the class that used the text demonstrated the acquisition of a greater amount of basic ecological concepts, inserted in an environmental problematic, in relation to the class that had traditional classes and without TDC. In a second moment of the research, the two classes worked using the text of scientific divulgation. In the same way as the initial stage, the results obtained from the analysis and interpretation of the students allowed us to positively evidence that the use of texts in Biology classes functions as a strategy to facilitate the understanding of concepts and the use of more consistent and conscious information on the subject under study. This can be found in the answers given to the situations proposed in the problematizations and in the debates fostered during the realization of the didactic unit.