You Are an Administrator in a School System Charged with Designing

You are an administrator in a school system charged with designing a new high school curriculum.You are under pressure,for economic reasons,to include only "essential" subjects in the curriculum.
You're aware that most of your colleagues believe that "essential" subjects are limited to math,science,communication arts,and history-but not art.In light of this,you decide to write a letter,in the form of an essay to your colleagues in defense of including art classes and art appreciation in the curriculum,because of art's essential,educational value.
Your essay should include,but is not limited to,the views of Schiller,Schopenhauer and Nietzsche,although you're not limited to these points of view.
If you've had a personal experience of the educational power of art,share that as well.
Be specific about how educational values are linked to aesthetic values-be these Apollonian or Dionysian.
Also be specific about what "arts" and "art appreciation" you would include-formal art,and/or popular art?