She's in pre-school and came home yesterday with one full page of math homework. I was really upset with the school for having started so early and thought that this was just pushing kids to the limit. However, I was pleasantly surprised. She completed the whole thing- 2+1, 4+5, 5+5 etc etc in less than 10 minutes using all 10 fingers. Very cool indeed.
I also found this link, which describes exactly how she does the simple math:
http://www.thecoloradoindex.com/the_colorado_index/2007/09/on-teaching-mat.html?cid=139939784#comments
