TKT shows how you are developing as a teacher. It is ideal for people who want to prove their teachinig knowledge with a globally recognised certificate.

TKT is a flexible series of modular teaching qualifications, which test your knowledge in specific areas of English language teaching. You can take as many modules as you want, over any time period. You receive a Cambridge English certificate for each module you complete.

More details login  https://www.cambridgeenglish.org/teaching-english/teaching-qualifications/tkt/