Study and teaching History 11 Education 6 Art 5 Social aspects 5 Arts 3 Geography 3 Mais ... Language and languages 3 Mathematics 3 Social sciences 3 Spanish language 3 Architecture 2 Citizenship 2 Civilization 2 Competency-based education 2 Computer network resources 2 Foreign speakers 2 French language 2 Law 2 Mass media 2 Mathematical models 2 Moral education 2 Peace 2 Philosophy 2 Spanish literature 2 Spanish speakers 2 Values 2 Water 2 Water-supply 2 Activity programs 1 menos ...