Abordagem didática do raio laser para alunos do ensino médio

Abstract

The discussion of issues related to modern physics for high school students is a problem that attracts attention of many educators. These problems, among others, we can highlight the little time to cover all the proposed content, as well as present its theoretical formulation, which often escapes common sense. In particular, we approach the subject of the laser, whose physical description is made through the principles of Quantum Mechanics. This article aims to discuss a didactic approach of the laser accessible to high school students. The methodology was organized through the application of a questionnaire, followed by a theoretical class and practical application of this class through pre-selected experiments, such as, see the voice, the light that makes a curve, the invisible light. Finally, a questionnaire was applied to evaluate the knowledge acquired by students. This approach has awakened the curiosity of these students, resulting in a greater involvement of the class, consequently generating good results in teaching-learning