If you are interested in becoming certified to teach english, there are two highly recommended and internationally recognized certification programs: CELTA and TrinityCert TESOL.

CELTA:

This teaching qualification is intended for participants with little or no previous teaching experience. The course can be taken     full-time ( 4 to 5 weeks) or part-time over a few months. There are over 286 centers in 54 countries.

Visit the CELTA website for more information: http://www.cambridgeesol.org/exams/teaching-awards/celta.html

Go to "contact your chosen center directly" for more detailed information on programs around the world

Trinity CertTESOL:

This certificate is through Trinity College London, and is also intended for those with little or no previous teaching experience.

Visit the website for more information: http://www.trinitycollege.co.uk/site/?id=201