Francisca Matilde Carranza Volío better known as Matilde Carranza was born on Jan. 6, 1892 in San José, Costa Rica and baptized on 7 February 1892. Her parents were Francisco Carranza and Petronila Volío. She was one of the leaders of the teacher's strike of 1919 against the labor policies of President Federico Tinoco Granados, which culminated in setting fire to the government newspaper office, La Información. The strike, led by Ángela Acuña Braun included teachers like Ana Rosa Chacón, Lilia González, Carmen Lyra, Victoria Madrigal, Vitalia Madrigal, Esther De Mezerville, , , and . In 1920, she went with Lyra and González to Europe to learn the Montessori education model so that it could be implemented in Costa Rica. From the early 1930s, Carranza was furthering her studies in the Unite