The Spanish Federation of Mathematics Teacher’s Societies (FESPM) is a more than 30 years old, non-profit organisation that comprises 21 Mathematics Teachers’ Societies with about 5.000 members. It can be clearly stated that the FESPM is the unique organisation gathering mathematic teachers from all pre-university educational levels. The FESPM collaborates with the Spanish Ministry of Education and many of its associated Maths Teachers’ Societies have agreements with their corresponding Regional Educational Administrations.