Chás e plantas medicinais: uma proposta experimental no ensino de química

Abstract

Use of generator themes in chemistry teaching is an important methodological tool for educators, since the reality in schools is a decontextualized teaching and has no relation to the daily lives of students. Such conditions contribute to demotivation and lack of understanding of the contents worked in class. In this context, this work proposes an experimental activity of organic chemistry using the theme teas and medicinal plants. An initial survey with groups of third year the State High School Frei Plácido in the municipality of Bagé was performed in order to know their habits, use purposes and identify the most commonly used medicinal plants. We conducted the analysis in order to propose an experimental activity easy to perform in the classroom with plants most consumed by them. After the analysis it was decided to work with the plants Chamomile (Matricaria chamomilla L) and Macela (Achyrocline satureioides), performing phytochemicals tests for identification of secondary metabolites.