Math Pop Quiz, US Common Core Math, 1.OA By Paul Katula • October 14, 2010 First grade, Operations and Algebraic Thinking Random quiz items now loaded into our database: cc.schoolsnapshots.org/i_random.pl?zv=668 Paul Katula View all stories → Paul Katula is the executive editor of the Voxitatis Research Foundation, which publishes this blog. For more information, see the About page.