ESL
From The ICAL TEFL wiki
ESL is an acronym for English as a Second Language.
ESL students are people learning English as a second language, that is, as another language after their mother tongue or primary language. This is the case of many US citizens whose native language, despite being born and living in an English speaking country, is Spanish.
ESL programs are designed for all ages and school levels; from early childhood through to secondary school, to adults.
Teachers who teach ESL classes are defined as TESL teachers as they Teach English as a Second Language, which is different from teaching English as a native language. To become a TESL teacher you need specific teacher training.
