Hi epuleo1204,
It turns out, we have a lively discussion going on on both our Facebook and Message Board forums on involving teachers in parent groups. That's one step to help teachers feel more a part of your group and more invested. Check out these threads on Facebook and Teacher on the PTO Board on the Message Boards.
Facebook: https://www.facebook.com/PTOToday/posts/10153933048980224?stream_ref=10
Teacher on the PTO Board: https:/classic.ptotoday.com//boards/13-free-for-all--pto/165479-teacher-on-pto-board