We present Sumeu-vos al Repte, a visual summary of how to participate in the Barcelona Dades Obertes Challenge. This innovative initiative led by the Barcelona City Council aims to introduce open data in the city's educational centers through its teaching staff. It positions Barcelona as a pioneer city in the introduction of open data in the educational world, as endorsed by Eurocities, choosing it as the main example of the first principle of its Decalogue of Citizen Data Principles.