If you need the TEK for your DOL, World History TEKS 1F, US History TEKS 9, and Texas History 7C will work.
Good on Missouri for coming together as a community to address what they've isolated as a chronic problem in their community. The way this can work in your class is isolating problems the school has or that exist in their communities that need to be fixed. Deciding something worth potentially dying for is a little more difficult.
At first, you'll get the less serious answers like "No more uniforms" and "Better school lunch," but then you'll start to get into the "I'd walk out if the school actually suspended people for too many tardies" or "if a teacher hurt my sister/brother and didn't get in trouble, I'd go on strike" type answers.
I think this is a worthwhile detour from typical content because part of teaching is also helping our kids understand how to advocate for themselves and develop their own core set of principals. You may also get a peek into what they value about your class, their school, and the community as a whole.
We should always be working toward creating more active and aware members of our communities.