The project “Women and girls in science, of course!!” had as main objective to favour the participation of women in science and highlight their role in STEM subjects locally as well as at a national and European level. Science and technologies are usually focused through collaborative work and project based methodology from a gender point of view. The project has also tried to get the investigation processes, as well as ICTs (Communication and Information Technologies) to become a routine matter for our students.The main idea was to promote and encourage scientific and technological vocations in our respective educational communities, from an inclusive perspective, especially favouring groups that are currently underrepresented. The project aimed at acquiring key competences and achieving meaningful learning from an interdisciplinary point of view. The participation of three European schools with different languages has promoted multilingualism as a tool to convey the contents and this has helped to deepen the knowledge between the countries in which the participating schools are located. The language of the project was Spanish, and this is the language that has been used the most in the development of the project, but work has also been carried out in Portuguese and Italian, although to a lesser extent.The mobilities have helped to establish the knowledge of the European heritage value, it has helped the dissemination of the activities and contents in our schools and the participation of the whole educational community, teachers, pupils, parents and school staff .Networking on the eTwinning platform has provided a safe environment for communication between pupils and teachers in the participating schools and has been essential for the preparation of the mobilities and the dissemination of the project, as well as acting as a repository of activities, materials and reports, making them available to all interested parties and guaranteeing the sustainability of the project.Approximately 90 pupils between 12 and 16 years old and 30 teachers have taken a direct part in the mobilities, a higher number of participants than initially planned thanks to the generosity of the families for hosting pupils from other countries at their own homes. As a result, the project has had a greater impact on our educational communities.The mobilities have been the soul of the project, without them our project would be meaningless as the underlying purpose was an increase of the international dimension, of tolerance and multiculturalism in order to favour the adaptation of the pupils to the educational environment, to favour their integration as responsible members of society and their adaptation to the profound changes expected in the labour market within the framework of European democratic values.