Experimentos de baixo custo aplicados ao ensino de química: contribuição ao processo ensino-aprendizagem

This paper describes a methodology based on the constructivist perspective of public education in the city of Maraba, Brazil, which the objective was to investigate and contribute to the use of experimental activities simply and with low cost materials to learning of chemistry for high school, being approached two themes: Chemical Kinetics and Electrochemistry. In chemical kinetics, was objective to understand strategies and analyze the importance of the rate of chemical reactions, as well as checking what are the factors that accelerate, decrease or provide the necessary conditions for the reactions may occur. In electrochemical, understand the oxidation-reduction reactions that represent a set of phenomena commonly observed in day-to-day was objective, which allows a contextualized approach in which the physical and chemical concepts are involved. This paper therefore aims to provide a high school teacher (chemistry teachers), the possibility of a more illustrative and test lesson in a simple and practical way.