In case it is hard to read, the caption at the bottom reads "Includes Everybody"
Upon further investigation, I realized that it was in every classroom, usually posted in an obvious place, like right next to the main doorway. In at least one classroom it was hidden near a corner at the top of a chalkboard, but that did not seem to be the norm.
The cell phone picture is so blurry that I can't make out a few of the symbols and don't remember what they were, but notice the one on the top left, which represents Pride. This never would have been allowed when I was in grade school. I like how this goes against the notion that children must be protected from knowledge that non-heterosexuality exists... what I would like even more is if all relationships were just seen as normal this type of sign wasn't necessary, but I'll take what I can get.
I'm not sure how well the school itself follows these ideas, or how well they actually teach inclusiveness, but I am told that the new VP is very concerned about such things, which I find fantastic.