Design of a transversal teaching unit between technology and social sciences by a mystery story

PBM is spreading in our students training. It is currently perceived as an optimal approach to learning in order to improve motivation, contextualize the projects and mainstreaming technology and humanities. This article presents The Mystery of Mr X, a teaching unit that fuses industrial process units, cities and population, from second ESO curriculum in roles format. The police plot is originated through the discovery of a body in the refurbishment of a former textile factory in the Poble Nou neighbourhood. An anonymous person contact and hire the unit class, which will act as a detective agency. Students develop skills and contents of the unit, stimulating creativity, reasoning and cooperative work, through a network of tracks. After solving the enigma, the student receives the tracks through theoretical content development as a part of each session. This unit aim is to discover how the society has evolved and transformed through technological development. Considering as timeframe since industrial revolution of nineteenth century to twenty-first century society, students will see and learn about the social and industrial changes through the resources that have sprung up.