Take the first step towards a career as an educator by studying the process of giving and receiving systematic instruction. Specialisation includes area such as early childhood education, primary/secondary teaching, and english education.
https://www.goabroad.com/articles/tefl-courses/tefl-tesl-tesol-whats-the-difference
There is a difference between TEFL, TESL (speaker of english language) and TESOL (speaker of other languages)