Deb, Great thought provoking post. No matter how you look at it, in our world, titles are most often associated with leadership or those with some type of organizational authority. In your new role, there has to be a clear demarcation of who(m) has the responsibilities in the role you have. It's you. While many of us may not care about titles, it does keep some organizational and social order.

The great thing about your new role is all the students who've known you as Ms. Costello the "teacher" (a title) now support you as someone who is contributing. Leadership is more about daily contribution and being engaged, no matter whom you work with.

Enjoy the journey and keep up posted.

Jim