Uma análise do tema chuva ácida nos livros didáticos de Química aprovados no PNLD do ano de 2018

Abstract

The media in general always address scientific novelties and end up creating a de-mand that must be discussed in the school environment, which always imposes a need for updating both on the part of teachers and of the teaching materials used. Among the materials made available in schools is the textbook, mainly from the Na-tional Textbook Program – PNLD, in force since 1996, and the National Book Pro-gram for High Schools – PNLEM, implemented in 2004 It is through these two pro-grams that students from the public education system, whose schools adhere to them, will receive the book free of charge and must return it after the period of use. Such programs are always aimed at improving the quality of teaching and, it is con-sidered necessary to “improve and expand the didactic resources available for the teaching work and for the effective support for the student's intellectual development” (BRASIL, 2005, p. 32). One of the themes that is always explored by the media re-fers to the global warming of the planet, caused by the excess of certain gases in the air, which accentuate the greenhouse effect, acid rain and other environmental prob-lems. Thus, this is a topic that a Chemistry teacher often needs to give special atten-tion to in their classes. In this sense, our objective in this research was to analyze whether the chemistry textbooks approved in the PNLD for the year 2018 bring the theme acid rain and how it is addressed. Qualitative bibliographic research was car-ried out. Therefore, it was possible to consider that the analysis of textbooks allowed us to conclude that the theme of acid rain is approached in a very simplified way, in most of the analyzed books, and in some they are the threads of certain units. It is considered as positive aspects the fact that the theme of acid rain is frequent in the analyzed books. Thus, they point to the real possibilities of a practical approach to this theme, proposed by the textbook.