Geometry for real

I have always liked the idea that we can use a same material and apply different layers of difficulty , which makes our work on one hand more challenging, adapting to the individuality of students and contexts; on the other, interesting because we can use a same material and observe how it is developed or can be connected with different areas of knowledge . This combines well with Van Hiele theory of how students learn geometry, with the zone of proximal development from Vygotsky and the necessity to attend students with special needs.  Although we might thing that geometry is an “advance area” of the mathematical field that will only be introduce in the intermediate and advance levels of Primary School, the most basic figures are already present in such early ages as kindergarten as least in visualisation and recognition . We can see examples of plane geometry and forms in these illustrated albums: Little Blue and Little yellow . In Spanish, Pequeño azul y p