The increasing availability of mobile devices in the school led to the development of the project The Sea in Music in the school year 2012-2013 at the grouping of schools of Padrão da Légua, which aimed at the integration of AR technology with the mobilelearning concept. The establishment of collaborative work between different disciplinary areas, teachers and students, was one of the main project objectives, focusing to develop an artifact with potential use in the process of teaching and learning within educational
contexts. The work took the form of a book, illustrated in fig. 3, to which audiovisual elements (multimedia) were added using Augmented Reality.