Laypeople's participation in the planning of built environments is dependent on their spatial literacy, and it is therefore important to develop this through general education. In Norway, architectural assignments in the subject of Art and crafts are aimed at enhancing spatial literacy, but not all activities are equally educative. The use of…

The geometric design of roofs is a key element in the design and construction of buildings. Roofs play an important role in protecting buildings from the weather and providing esthetic appearance and functionality. Theoretically, to design a roof over a given plan means to construct the projections of the intersections of the roof planes. All this…