The colors of the Brazilian flag in different lighting scenarios

Aiming to clarify concepts related to Optics and its teaching methodologies, above all on the perception of objects when illuminated with light sources in certain colors or bands of the light spectrum, an analysis was developed focusing on the problem of visual perception of Brazilian flag colors, considering different lighting scenarios. This question, usually applied in the teachers' daily routine, has presented conflicting answers in some relevant tools in the teaching-learning of Physics. The tools, in which were obtained such results, contemplate didactic books of the discipline of Physics of High School; One of the selection tests of the Mestrado Nacional Profissional em Ensino de Física – MNPEF (2015), from Sociedade Brasileira de Física – SBF; As well as, digital simulations conceived in the software Cores - Óptica, belonging to the project Acessa Física. As a proposal to solve the doubts identified during the comparison of these resources, in the context of the Programa de Educação Tutorial – PET, the experimentation was adopted, through a practice with simple and accessible materials. The results demonstrated the importance of the experiments, as a way of elucidating conflicting concepts, deepening the analysis of the issue discussed and promoting a new perspective for the study of colors