I found this excellent demonstration of Common Core math in use. . . www.schooltube.com/video/130f49947f551d61e5a8/Abbott%20And%20Costello%2013%20X%207%20is%2028 Demonstration Cheers, PW. P.S. Other places are trying education innovations too. . . [yt]M_pIK7ghGw4[/yt]