English has achieved prime status by becoming the most widely spoken language in the world.
teaching English to speakers of other languages (TESOL). Technically, TEFL refers to English language teaching in a country where English is not the official language, TESL refers to teaching English to non-native English speakers in a native English speaking country and TESOL covers both. In practice, however, each of these terms tends to be used more generically across the full field. The one you are more likely to hear depends largely on your location - with TEFL more widely used in the UK and TESL or TESOL in the US.

The Process of Language Acquisition is a course for Master 1 students (Foreign Language Didactics) that is designed to uncover Krashen's widely known and well-accepted theory of second language acquisition, which has had a large impact in all areas of second language research and teaching. In addition, two basic theories (The Behavioral Theory, The Cognitive Theory) of the learning process are a part of this course each of which explains how learners learn from a different perspective.