The obstacles in the process of teaching and learning of stoichiometic calculation

Abstract

The article presents results of a research realized in the city of Belém, Pará with chemistry teachers and students of 2nd year of high school from a public school and one private, by the application of semistructured interviews in order to identify and investigate in Chemistry classes in the main obstacles of the students in relation to student learning Stoichiometric Calculation, and thus, propose a didactic intervention. After quantitative and qualitative analysis was applied a contextualized classroom using teaching a game, aiming at effective learning. The results show that the main difficulty reported by both students and the teachers is related to the calculations present in the content addressed. It is concluded that, after didactic intervention and implementation of a new semistructured interview, the students showed an interest in class, better understanding of the contents so they could effectively build the knowledge object of this study

Keywords

• cálculo estequiométrico
• obstáculos de aprendizagem
• ensino de química