Experimentos com materiais alternativos: uma proposta didática para o ensino de cinética química

Abstract

In basic education, generally in public schools, there are many deficiencies to be addressed, especially in relation to experimentation in the teaching of chemistry, due to the absence of a laboratory and the lack of teaching resources. Therefore, this study aims to evaluate the use of experiments with alternative materials in the teaching and learning process of Chemical Kinetics content. For the accomplishment of this work, first a bibliographical research was carried out, later a field research was carried out with the target audience of the exploratory and descriptive type, for this a qualitative-quantitative approach was adopted, in which the research participants are the students enrolled in the 3rd year of High School at the São José School Unit, in the municipality of Aroeiras do Itaim-PI. The research was carried out in three stages, in which a theoretical class and an experimental class were given, using as a data collection instrument three questionnaires with objective and subjective questions. The results were evaluated and it was found that they are quite valid and positive when compared to the initial level that the class was, as there was a considerable growth in the comparison of the result of the pre-test to the post-test. Therefore, after analyzing the results and also the participatory attitude of the students during the experiments, it is concluded that the experimental activities, even applied in the classroom, with alternative materials found in everyday life, have contributed significantly, enhancing learning in chemistry content