O modelo gerador de questões na identificação de dificuldades de alunos da 12ª classe de Moçambique na explicação do efeito fotoelétrico

Abstract

This article presents some results of a PhD project which main aim is to develop, in a digital format, assessment questions based on a Questions Generator Model (MGQ), for teachers and students, in order to guide the teaching, learning and assessment process of contents of Modern Physics and Radiation, in the context of the Physics Curriculum of the 12th class in Mozambican. The results reported in this article refer only to the content of the photoelectric phenomenon. In order to identify students’ main difficulties, assessment questions were applied, in the academic year of 2013, to 50 students from three classes of two secondary schools in Mozambique. The questions were available in the Mathematics Teaching Platform Project (PmatE) and solved in 22 groups of two or three students. The results showed that the MGQ is an important tool that contributes to the identification of students’ difficulties. Through the MGQ it was found that students face difficulties in interpreting processes that take place inside atoms. The suggestion pointed to a didactic approach of the content in question, based on the difficulties identified and on the specialized literature, consisting of an experiment that can be performed with an electroscope equipped with gold leaf and using also a zinc plate.