Common Application/Letters of Recommendation

<p>I have written my common application about my six grade language arts teacher and his influence upon me and how I have changed because of his guidance; my supplementary essay is about my experiences with music and how they have helped me be dedicated and passionate about the things I love. My question is - would it be okay for me to include a supplementary letter of recommendation from the teacher in addition to the common app or would that hurt my chances more than help them?</p>