Tips for writing common app essay about issue?

<p>"Discuss some issue of personal, local, national, or international concern and its importance to you."</p>

<p>Possible essay topic- Personal- My brother and how I believe the school has failed him seeing as he is a frosh and has a fifth grade reading level...
He won't let me help him- he's embarrassed, because im in honors/ap courses, so I peer tutor other kids and volunteer at a camp for disabled people of all ages</p>

<p>Good topic? Tips on writing about this topic? Tips on writing this type of essay in general?</p>

<p>Thanks in advance :)</p>