24-page PDF article from the "Ineramerican Journal of Education for Democracy," vol. 1, no. 1, September, 2007. Abstract: "Classrooms in Peace is aimed at preventing aggressive behaviors and promoting peaceful coexistence through 1) a curriculum for the development of citizenship competencies in the classroom; 2) extracurricular reinforcement in groups of two initially aggressive and four prosocial children; 3) workshops for, visits and phone calls to family mothers/fathers. A first implementation of the complete program showed a drastic decrease in aggressive behaviors and indiscipline and a considerable increase in prosocial behaviors, adherence to rules, and friendship networks among classmates. The combination of universal components and targeted components for those most in need seems to be highly valuable, especially in violent contexts."