The Principle's Perspective 

This report from GLSEN (Gay, Lesbian, and Straight Education Network) shows excellent statistics on how principles of elementary, middle, and high schools see the treatment of LGBTQ+ students. This article clearly shows disparities between the perspectives of LGBTQ+ youth and the figures of authority above them, and thus should be used as a supplemental source.

Length: Long (over 100 pages).
(direct link)
(diigo link)