Following are some resources provided by school boards &/or teacher unions/locals in Ontario.
ETFO's 2SLGBTQ+ Page
ETFO's LGBTQ Education Timeline
TDSB Safe & Positive Spaces
TDSB Caring & Safe Schools
TDSB Celebrates LGBTQ PRIDE Every Day
A Safe Place to Be LGBTQ (YRDSB)
Equity & Inclusive Education (DDSB)