Every one of us has a reason for becoming who we are. For most of us it was a teacher that opened our eyes to seemingly endless possibilities. Teachers of the world, thank you for choosing the most noble of vocations. This is your opportunity to share with the world the reasons why you teach. Join the movement by tweeting using #whyIteach or submitting a short video, picture or anecdote telling us why you teach. Tell us how you inspire them, and how they inspire you.