One legislator tried to introduce an amendment to the bill that would adjust the (incredibly vague) wording to specifically ban teaching about sex and sexual activity in K-3, which was ostensibly what the bill was intended to do. The amendment failed, and the bill's author said that such a change would fundamentally undermine the intent of the bill. Said author also commented that he didn't want young kids to have word problems like "Billy has two mommies" or "Sally has two daddies."
So it's pretty fucking obvious what they were trying to do.