Hello people, I hope you see this message in the best of your health. Well I need an advise I am a Computer and Mathematics Teacher. My problem is I am not a native English speaker. I want to work in American or British curriculum school and for that first thing I need to do is to master my English speaking skills as a teacher. Can you folk please suggest me any International English Speaking Certificate for a teacher that can be done online? Because I can not take time for regular classes. Also tell me which one of the common English Language Certificates is the best among for teacher like me i.e IELTS, TEFL etc. Awaiting replies.