13. Calls upon States to recognize the right to education on the basis of equal opportunity by making primary education compulsory and ensuring that all children have access to free and relevant primary education, as well as by making secondary education generally available and accessible to all, and in particular by the progressive introduction of free education;
13. Insta a los Estados a que reconozcan el derecho a la educación basado en la igualdad de oportunidades implantando la enseñanza primaria obligatoria y velando por que todos los niños tengan acceso a la enseñanza primaria gratuita y adecuada, poniendo la enseñanza secundaria general al alcance de todos y, en particular, introduciendo gradualmente la enseñanza gratuita;