Avaliação formativa sobre energia: uma proposta de sequência didática utilizando o aplicativo Plickers

Abstract

The present work consists of a learning investigation of conservation of mechanical energy subject in a formative assessment process done by ninth grader students from Elementary School who would apply for the entrance exam to enroll in the Instituto Federal do Sudeste de Minas Gerais. The lesson sequencing was employed aiming a conceptual dimension of the involved physical phenomena along with its required contextualization. Experimental apparatuses, adapted materials from master thesis products which were defended at the Mestrado Nacional Profissional em Ensino de Física, were used in this lesson sequencing in addition to a virtual experiment in the learning process. Plickers App was used in the formative assessment perspective arising from different didactic material questions. From this achievement, an educational product was developed by a lesson sequencing about a work done by a force and the conservation of mechanical energy embracing the evaluative activities of formative characteristic using Plickers App. Among all four classes taught, we analysed the enlargement, the reduction, and the stability in the hit ratio of the questions, comparing through ten different questions discussed in the past two classes. From this analysis, we could conclude that Plickers App use allowed us to follow the learning of the concepts involved in real time through hit ratio, besides enabling the identification of the wrong chosen options selection in a formative assessment process, providing questions discussions from therapeutic interventions, it means, teaching tactics in order to specifically recover an insufficiency of learning that was found, that aimed to settle previous doubts. By reason of this treatment, it was possible to infer a better learning of the involved concepts as suggested by the growth of the hit ratio in the analyzed questions.