Avaliação da abordagem do tema cálculos estequiométricos pelos livros didáticos de química publicados nos últimos dez anos

Abstract

The need to decreasing distances between school science and everyday student science resulted in finding different ways to resolve this situation. One of the ways to motivate students and to have a critical education and social sciences was the contextualization of content. The option of analyzing textbooks is justified by the fact he was the most widely used teaching resource in the teaching learning, because the teacher has constituted the most common method to select prepare and / or develop the content of a course. In this work, we conducted an analysis of the evolution of the textbooks used in teaching chemistry for teachers and high school students. This evaluation will be performed to the theme stoichiometric calculations, considering the great difficulty of the students in this regard often discussed in scientific papers.