Uso de vídeos como atividade experimental demonstrativa no ensino de química

Abstract

Chemistry is approached in most schools in a very complex manner and detached from the social context of students and, consequently, demonstrate difficulties in their learning. In this context, it is necessary for the teacher to look for new teaching methods that enable students to create their own concepts, discover new ways to reach a result and learn dynamically. The use of videos with investigative demonstrative experiments was a motivating tool for chemistry teaching. Based on pedagogical moments, it was verified the contribution of the use of videos with investigative demonstrative experiments for the learning of some concepts related to the solubility and release of gas. The work consisted of the application of a didactic strategy, in a classroom composed by twenty five high school students, from a public school in Jataí - Goiás. The data collection took place in three stages: previous questionnaire, questionnaire post-video and final questionnaire The interpretation of the answers was performed through Content Analysis. The results indicated that several answers are grouped in a microscopic view and the didactic sequence allowed the student to build their own knowledge through the teacher's intervention. The short videos, besides minimizing the dispersion of the students, presented themselves as an alternative in a school environment without physical space and materials for experimental activities.