The teaching-learning process of drawing the city is too often unrelated to the social reality that requests it. The numerous databases available online (IGN, cadastre, google earth ...) mean, while an excellent and valuable source of information, a distorted digital simulation of the city. The multiple layers of information available (roads, vegetation, real estate, properties, roads, topography, ...) refer to a different temporality from the current one and, although they are presented simultaneously, they are far from meaning to the digital twin with which technology companies intend (on many occasions) confuse them. The present teaching research work assumes that, in order to draw the city accordingly, it is necessary to become aware of...