INSERÇÃO DOS CORANTES NATURAIS DA CULTURA INDÍGENA NO ENSINO DE QUÍMICA

Abstract

In this work, we present a theoretical review from the perspective of a motivating teaching, in order to arouse an interest in Chemistry in students, from the proposal of inserting natural dyes from indigenous culture in the teaching of Chemistry, seeking to improve educational practice. in the vigor of contributing to the theme indigenous culture considered as an object of study in basic education, as established in legislation 11,645/08 in the assistance and collaboration of indigenous cultural knowledge in the contribution of the teaching of chemical and scientific concepts. For the purposes of this work, studies were carried out through research sources on the topic of indigenous culture through the theme of insertion of natural dyes in the teaching of chemistry. The research is directed to the teaching method that aims to promote chemical knowledge from the students' prior knowledge, from the interaction of knowledge coming from another, whether in different experiences, beliefs, cultural values in the construction of skills and competences and not accumulations. of content. Natural dyes present in everyday life are used worldwide in the food industry, pharmaceuticals, textile factories, visibly used in indigenous cultural manifestations. In teaching, the transposition of people's voices into the educational environment leads society to awareness and respect for the histories and diversities of a local culture. The tincture in the employability of indigenous body painting is marked by the characterization of identities and cultural manifestations, bringing to teaching diversified classes such as the application of practical workshops of indigenous body painting. The contextualization of natural dyes with chemical contents stimulates the acquisition of knowledge about the chemical composition of the fruit, seeds and tubers and, in practice, brings the exploration of the extraction of natural dyes with chemical methods, working on the structural forms of the dyes' pigments, the pigment stabilization. In this work, the importance of natural dyes in the teaching of organic chemistry is established, contextualizing with extraction methods, constitution, solubility, acid/base properties, etc., in the acquisition of chemical, social and cultural knowledge through natural dyes. most used by annatto, genipap and saffron, in addition to promoting the ability to arouse motivation, interest and participation in the individual, it stimulates the ability to reason, reflect and question through assimilated knowledge in the transposition of theory to indigenous culture. Practice.