Uma proposta didática para o ensino da natureza dual da luz

Abstract

The conclusions about behavior wave-particle of light began the Quantum Physics, starting from the idea of quantization of energy, suggested by Max Planck. Thus, it is important for students to understand that light has wave moviment behavior when it spreads itself and it has a corpuscular behavior when interacts with matter and how much these conclusions were important for technological development. This research aimed to verify the potential of a didactic proposal for teaching about the dual nature of light, in a 2nd grade high school class, from a public network school in Paraná state. Therefore, the proposal in analysis was drawn up in the light of the Meaningful Learning theory, which also improves, an appreciation of the History of Science in Physics classes, as a methodological tool. Furthermore, it features two experiments to promote a better understanding of the duality of light. This study is characterized as a qualitative research, the data were collected during all the process, which was established by questionnaires, speeches transcripts, concept maps and field diary. Eight Physics classes were used, for the implementation of the didactic proposal that results in the educational product of the National Professional Master's Degree in Physics Teaching. It was found that students had a good reception to the proposed activities. They presented, at the end of this study, important relations about the duality of light, wich has sent them to new meaning of concepts basing on their previous knowledge. It was also found that the use of the History of Science promotes greater interest and understanding of the content covered, characterizing itself as a complementary methodological tool.