A CNN blog notes the new for 2012 California law that requires public schools to teach about people who have specific sexual (homosexual) lifestyles:

The “California Fair Education Act” requires that schools teach

lesbian, gay, bisexual, and transgender history and social science curricula.

The law also specifically bans topics that “adversely reflect” on a person’s sexual preference.  (It also requires instruction on Native Americans and people with disabilities.)

Toward the end of the blog, New York University history and education Professor Jonathan Zimmerman is cited as saying the school system needs to go beyond merely “celebrating” people’s sexual preference:

Schools must be careful not to just celebrate the group – they need to address tough questions and do some hard thinking. For example, he said, sending soldiers to fight for freedom for others while denying gay freedom in the military.

“We need to think about why we’re including them and what the purpose of these stories is in the first place,” Zimmerman said.

In other words, there is a goal beyond simple education.  They aim to “teach” their way into social change.