http://blog.door2math.com Lessons I learned in helping make math easier for kids. Sat, 01 Jan 2011 05:30:27 +0000 http://backend.userland.com/rss092 en http://blog.door2math.com/2010/12/31/addition-activity-7-adding-by-regrouping-with-2-single-digit-numbers/ http://blog.door2math.com/2010/12/19/double-checking/ http://blog.door2math.com/2010/12/19/addition-activity-6-making-10/ http://blog.door2math.com/2010/12/19/addition-activity-5-making-9s/ http://blog.door2math.com/2010/12/18/addition-activity-4-making-8/ http://blog.door2math.com/2010/12/01/addition-activity-3-adding-to-7/ http://blog.door2math.com/2010/12/01/addition-activity-2-adding-to-6/ http://blog.door2math.com/2010/12/01/addition-activity-1-adding-to-5/ http://blog.door2math.com/2010/12/01/double-checking-is-a-critical-math-skill/ http://blog.door2math.com/2010/11/28/efficient-vs-effective-when-learning-addition/