are there files with the sorban abacus showing varying numbers with the audio? (is my question making sense?) i’m having trouble finding. if so, can you please post the link? if not, does someone know how to go about making these? thank you!
Search for files uploaded by Chris1, such as http://forum.brillkids.com/teaching-your-child-math/soroban-abacus-1-10/
You may also find his posts helpful.
And here are ppt files by Chris1 that are downloadable:
http://forum.brillkids.com/downloads/?sa=myfiles;u=6459;pg=3