We offer a range of internationally recognised English language teaching (ELT) qualifications including the IH TESOL, CELTA and Delta.

Language teacher training courses are taught face-to-face at our central London language school. We also have an increasing number of online language teacher training programmes that can be studied remotely.

We can help you whether you're new to language teaching, want to take your expertise to the next level or would like to develop your language teaching skills in a specific area.

CELTA and ESOL online and face-to-face

Our Cambridge English CELTA (Certificate in English Language Teaching to Adults) Online, in collaboration with Cambridge English, is a unique blend of face-to-face and online language teacher training, ideal if you are looking for a flexible teacher training option.

Innovative Language Teacher Training

We have invaluable knowledge and experience of teaching languages while continuing to be a dynamic place to learn, with innovative teacher training ideas that make the most of our modern facilities and cutting edge technology.

Delta for professional development

A Cambridge English Delta (Diploma in English Language Teaching to Adults) course is the ideal next step if you already have an initial language teaching qualification or substantial experience of teaching English as a foreign language.

Delta provides understanding of the principles and practice behind teaching English to speakers of other languages (TESOL).

Our Distance Delta is specifically tailored for language teachers who would like to continue working while they study. It provides a flexible and convenient alternative to intensive and part-time face-to-face language teaching courses.

The origins of CELTA at International House London

In 1962 International House London introduced the world's first teacher training qualification for English Language Teaching (ELT). We are now one of the largest ELT training centres in the world!

The original course was the basis for the Royal Society of Arts/University of Cambridge Local Examinations Syndicate qualification in the teaching of English as a foreign language (TEFL) to adults.

More recently, this became the Cambridge CELTA or Certificate in English Language Teaching to Adults, which is the most recognised ELT qualification worldwide.


Develop a successful career in teaching English with the CELTA.

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DELTA for professional development

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