Gimnasio Moderno is a Colombian only-boys private school, bilingual (Spanish-English), inspired by liberal and humanist principles.
It was founded in 1914 by the renowned educator Mr. Agustín Nieto Caballero, together with a group of freethinkers of the time, such as Tomás and Jose María Samper Brush, and influenced by the ideas of María Montessori, Ovide Decroly and John Dewey, among others.
Gimnasio Moderno is a pioneer in Latin America in the implementation of ideas from Progressive Education or the Active School.
It is a part of Fundación Gimnasio Moderno, a non-profit organization devoted to education and to the transformation of Colombia.