Geometry for real

            Geometry is an extensive field with many applications in real life. To introduce this topic we think that it could be a good idea to make a small project with the students. We can ask them to take pictures of geometrics figures or patterns in the façades of the buildings . Then, they can describe the elements with the knowledge they already have. I have done my own quest, and here are the results: Illustration 1 . Pasaje Cuartel de Caballería What can we say about this first composition? First of all, it is plane figure. Then it is formed by three parallel squares. Each square has 4 semi circles, opposite to each other, creating like a kind of flowers. If we duplicate again and again this composition, we would have a tessellation because (1) all squares form a tessellation because there are not any gaps and (2) there are not geometric figures overlapped.  Illustration 2 . Tara building, S/ Tara (Dublin) . Autor: Esteban Zamora.  This com