The gender gap in STEM areas is still a reality that constitutes a global concern. Many
initiatives have sought to strengthen the scientific-technological aspirations of girls, among them
extracurricular programs such as the one we present here. Its design is based on the available scientific
evidence to promote female interest and self-concept in those areas. In this study, we analyze the
impact of the extracurricular activities on the development of competencies and perceptive selfevaluation skills among eight girls aged between 8 and 11 years old regarding science and technology.
The results showed the effectiveness of the extracurricular activities both for the development of
skills and for the improvement of levels of self-concept, interest, and participation, which leads us to
highlight the need to promote initiatives of this sort in order to overcome gender stereotypes and to
achieve equality.
