This is something I found on the website of the British Council (http://www.teachingenglish.org.uk)

If you would like to find out more about the CLIL methodology why not have a look at these articles:

A short definition:
http://www.teachingenglish.org.uk/think/knowledge-wiki/clil

A brief introduction:
http://www.teachingenglish.org.uk/transform/teachers/specialist-areas/clil

A podcast from CUP:
http://www.teachingenglish.org.uk/try/uk-publishers/cup/what-content-language-integrated-learning-clil

A lesson framework:
http://www.teachingenglish.org.uk/think/articles/clil-a-lesson-framework