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TEFL Training In Costa Rica | Updated: 02/23/2023

Acronyms in the TEFL World

Written by International TEFL Academy Costa Rica

We know that the terminology of teaching English as a Second Language can be overwhelming, especially all of the acronyms.  Let us spell some of them out for you!

TEFL = Teaching English as a Foreign Language, teaching English to non-native speakers

TESOL = Teaching English to Speakers of Other Languages

(T)ESL = (Teaching) English as a Second Language

TOEFL = Test of English as a Foreign Language, the most commonly accepted standardized test that measures an English learner's proficiency and overall language capability and readiness for tasks that require a specific level, like going to university in an English-speaking country

SLA = Second Language Acquisition

LEP = Limited English Proficiency

L1 = The first  language or mother tongue of a speaker

L2 = The second language of a speaker

IELTS = International English Language Testing System, a standardized test that measures an English learner's proficiency and overall language capability and readiness for tasks that require a specific level, like going to university in an English-speaking country

ESP = English for Specific Purposes, like Business English, English for Academic Purposes or English for Medical Professionals

EAP = English for Academic Purposes, usually to prepare English learners to study in an English-speaking university

ELL = English Language Learner

STT = Student Talking Time, the percent of a class that the students spend producing spoken English

TTT = Teacher Talking Time, the percent of a class that the teacher spends talking


Ready to make these acronyms a part of your everyday speech? Save your spot in one of our 4-week, onsite TEFL courses today!


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