currency sorter

South Africa
August 6, 2006 2:46pm CST
how to start to build one
1 response
rherdey
@rherdey (966)
• United States
17 Aug 06
Here are some sites that might be of value to you pbskids.org/zoom/activities/sci/coinsorter.html media.nasaexplores.com/lessons/03-055/9-12_1.pdf