CLIL: Content and Lenguage

In my opinion, both questions are important. If as a History or Literature teacher I want that my students learn contents about these subjects I need the lenguage to relate each other. Lenguage is in the base for communication, thoughts and creation of new knowledge. And this, without both items, is impossible, I mean. Firstly, the content, the ideas but inmediately the words or all kind of code to express our thoughts because without the fact of communication, the performance, it is nothing. Secondly, the code or the channel for communicate could be choose for the pupils or the teacher because the relationship to produce collective knowledge is more important than the lenguage or channel we choose. Finally, teenagers are starting off in their mental ability to think, to express, to relate with others and the code is necessary in order to undertand each other.