As the digital component of an Erasmus+ KA2 project, the Era's muse Twin space will enable pupils and project partners to meet up to discuss their progress and difficulties. The challenge is to prepare Moocs with each group of students and each partner to learn how to carry out transdisciplinary projects mobilising both STEAM skills and cultural resources from European museums, in particular the Museo de l'Hospitalet, the Spanish partner on the Era's muse project.