Unidade de Ensino Potencialmente Significativa por meio de experimentos com cinza de casca de arroz

This paper presents the use of rice husk ash in soybean production as a “Unidade de Ensino Potencialmente Significativa – UEPS” (Potentially Significant Teaching Unit), and its application in Science / Chemistry teaching. It is a teaching methodology aimed at learning, with more participative and active students in class, and the teacher as an integral part of this process. The application of this strategy also contributes to overcome traditional learning, still quite present in classes. Targets to build a UEPS in order to facilitate the meaningful learning of the chemical equilibrium reaction involving water molecules and silica incorporated into the soil at different doses.