For what it's worth, I never had a grade-school teacher who shared anything about his or her personal life (sexual orientation, who they were married to or were living with, where they went camping the previous weekend)...nothing. It seems to me that this Florida teacher wants his students to know that he's gay and has a partner in order to (a) bring them into his world and thereby (b) normalize gay lifestyles and coupledom so as to discourage any homophobic thoughts that might arise down the road.