What is the difference between teaching English as a second language and foreign language?

Teaching English as a foreign language (TEFL) means that the English instruction is taking place in an environment where English is a foreign language, such as Saudi Arabia or S. Korea. Teaching English as a second language (TESL) means the English instruction is being learned in a native English speaking environment such as the U.S., U.K., or Australia.

So both certifications train in how to teach English to non native English speakers. The main difference is where the instruction is taking place.

TESL - Native English environment (America)

TEFL- Non-native English environment. (China)

Teaching English as a Foreign Language (EFL) typically take place in a foreign country, usually with students from the same country. In contrast, English as a Second Language (ESL) classes takes place in an English-speaking country, with students from all different backgrounds.

 English as a Second Language (ESL) and English as a Foreign Language (EFL) require two different strategies for teaching for a number of reasons. Most people don’t know the difference between the two and don’t consider the difference when they set out to teach English. It’s important to know what each one is so that the different needs of the students can be met.