This model scaled up from the local to the national during the 80s, as a wider model of school innovation for more than 24.000 rural schools. Later on a Federation was created to ensure the integrity and implementation of the model, and to further innovate it and make it flexible enough for its use in urban areas and other countries. Their model revolves around four main principles: collaborative learning, personalized teaching, comprehensive approach and constructivism. Given his long track record and experience, the Federation of Escuela Nueva also gives advice at the national and international level. In 2001 they developed a particular approach to address the most vulnerable people. In 2017, Escuela Nueva its being implemented in 17 countries.