Family came in from Idaho this weekend and last night we set up my 13yr old sister Hannah Joy with her own e-mail address and her own blog. It’s great to see you blogging sis!
Dancer Hannah Joyhttp://dancerhannahjoy.blogspot.com/
When she was just 9yrs old I taught her how to covert numbers from one base system to another over dinner. She could take a number in base 3 to base 14, or any other. This made binary seam real easy and she learned to count it on her fingers. She is 13 now and can do it very fast (much faster than I can) on both fingers up to 2^10–1 = 1023. Here is a video of her at age 9, about a month after learning it.
The video is posted on YouTube at: http://www.youtube.com/watch?v=jJad2IBcwCM
Hannah just blogged about this too! See her perspective at:http://dancerhannahjoy.blogspot.com/2006/07/counting-binary-on-my-fingers-age-9-my.html