Education, Higher 12 Teachers 11 Training of 11 Docente 10 Enseñanza superior 10 Education, Secondary 8 Enseñanza secundaria 8 hơn ... Study and teaching 7 Technical education 4 Administración de la educación 3 College teachers 3 Education 3 Enseñanza 3 School management and organization 3 Adolescente 2 Chemistry 2 Education, Primary 2 Emigration and immigration 2 Enseñanza primaria 2 Enseñanza técnica 2 High school students 2 History 2 Home and school 2 Investigación 2 Mathematics 2 Química 2 Research 2 Accounting 1 Administración pública 1 Agricultura 1 ít hơn ...