Preparation to Brazilian Astronomical Olympiad on a public middle school

This investigation was derived from the observation and teaching process carried out in elementary classes at the Brigadeiro Eduardo Gomes Municipal Middle School (Natal, Brazil) at the end of 2019. The sciences classes taught were the following: the development of astronomy and astronautics from antiquity to the modern era and, introduction to stellar evolution. The goal was to focus on preparing for the Brazilian Astronomical Olympics (OBA) for students in these classes. The results, both quantitative and qualitative, were quite satisfactory. Taking into account the region's socio-economic vulnerability profile. In this context, the study of Astronomy in the classroom in search of creating new mechanisms to improve pedagogical activities encourages the critical and creative development of students, showing that they have the potential and want to make use of it.