Hi Jennifer,
I'd start with making sure that the staff & leadership at the school are trained first, they will set the stage, but all must be bought in and have shared knowledge.
Check CRIResilient.org for Course 1, 2, & 3
Watch the documentary Paper Tigers
Hope this helps. I can share more resources if you like, just email me contact@drbconnections.com www.drbconnections.com
KB