Competency-based Teaching (CBT) is an approach that defines learning objectives in terms of measurable, real-world competencies, specific things learners must be able to do with language rather than things they must know about it. It emerged in the 1970s in vocational education and was widely adopted in adult ESL programmes, particularly in the United States and Australia, for immigrant and workplace literacy education.
CBT was adopted at scale in the Australian Migrant Education Program (AMEP) in the 1990s and has been influential in US adult ESL programmes. The CEFR's "can-do" descriptors reflect a similar competency-based philosophy, though the CEFR operates at a more general level than programme-specific CBT.