Olga Cossettini was a groundbreaking influence on children's education in Argentina. She spent her lifetime leading the education system away from corporal punishment and towards acceptance of children as individuals. She worked with her sister Leticia to transform the traditional school into the Serena School, or Active School, which is what her method is called today.
Olga's work was primarily based on respecting each child's unique personality and engaging them in their own education. The two sisters felt that children should be active participants in education, not just passive recipients