Why is Writing important for an EFL teacher ?What is the best way to teach writing to children? to teenagers?

For an EFL teacher there are three important points that they need to know. One of them is listening, the other is reading and the last one is writing.

All of them are essential for a teacher. Writing is important because it is very useful for communicating with people in a formal way. For examle if you want to send an application to your boss or the main of a school you have to write in a formal way and it t is not easy. EFL teachers must teach their students the correct way for writting formal papers because informal way is not so difficult like the other one.

http://www.eflpress.com/how_to_be_an_effectwrt_efl.html

David Martin says in this page that ...

" The most effective way in which we, as EFL writing teachers, can help our students to be better writers is by:
1. helping them get rid of negative attitudes towards writing through the freewriting process.
2. giving them feasible writing assignments, complete with specific instructions.
3. giving specific feedback and correction in writing conferences, or in written form.
If these three suggestions are followed, combined with the teacher's patience and care, then "writing that can be postponed, won't be."