An educator and activist, Pepita Casanellas taught at Can Tunis and El Polvorí, where she worked to promote social cohesion. In 1935, the parish of Nostra Senyora del Port called on her to teach at the parish school in the Port district, now known as Zona Franca. Later, as a teacher of the children of the Can Tunis and El Polvorí shanty towns, she introduced learning that transcended the contents of the syllabus, including theatre, music and other areas of experiential knowledge. She energised the neighbourhood, and encouraged integration and social cohesion. Moreover, she also became involved in the Educational Renewal Movement and joined the Col·lectiu d’Escoles per l’Escola Pública Catalana. In 2006, Barcelona City Council awarded her the city’s Medal of Honour for her dedication to education.
A pedagogue and activist, she was a teacher at Can Tunis and El Polvorí, where she promoted social cohesion. She was a member of the movement to update education and the Schools Collective for Catalan Public Schools.