Livros didáticos de química aprovados pelo Programa Nacional do Livro Didático 2015: uma análise das propriedades periódicas

Abstract

The present work contemplates the analysis of the form in which the textbooks approved in the National Program of Didactic Book (PNLD, 2015), presents the concepts related to the properties of the periodic table of elements. The research is based on an exploratory type of qualitative research with the criteria of the history of science and elementary periodicity of the elements, confronted with what is proposed in the Complementary Educational Guidelines to the National Curricular Parameters (PCN +, 2002) for a more meaningful teaching and learning method. The textbooks analysis consisted in verifying if the study of the periodicity phenomenon was based in the traditional model of education or if they include a differentiated methodology of teaching in which is used the system of arrangement of atoms as a tool to better assist the understanding of the concept by the learners. With the research, the investigation of how the history of science is approached in the textbooks available for this modality of teaching was made, in order to verify if it contains the process of construction of scientific knowledge, this is, the human segment knowledge that is changeable, complex, non-cumulative and dependent on the sociocultural contexts of each epoch.