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This premise of work clearly establishes that promoting learning opportunities for all will be one of the priorities in the Education 2030. Within this framework, UNESCO Santiago has its own instrument that allows delivering diagnosis and analysis in depth about the learning inequality within the region; the Thrid Regional Comparative and Explanatory Study, TERCE - carried out by the Latin American Laboratory for Assessment of the Quality of Education, LLECE, body bringing together 15 countries and coordinated by our Office.