This is an overhead transparancy that I use at the beginning of a semester to engage students and get them thinking about what they write and how they write.
It's an interesting overview of how much poor writing can cost and individual and large companies.
It breaks down the amount of time and money an executive spends on reading and describes some famous stuff-ups brought about by poor writing skills.
I am in the midst of my seventh year teaching at the high school level.
My subjects include junior and senior English, the Social Sciences and Canadian Law, although I will teach whatever they send my way!