Where can I find/buy the workbooks used in Japan. For example, the one shown at this specific time: https://youtu.be/wIiDomlEjJw
It seems like all the soroban videos I've seen on Youtube, there's a standardized workbook.
Hello,
Yes, I have noticed too, that they seem to use the same paper work; but that I think it is more a coincidence, because they use somehow the same font, the same layout, the same paper size.
I don't know where you can find them. I have found some while browsing the web, and collected one or two, but they have only exercises for each level, and that's it. So you can't do much when you find one.
It seems the teachers have a collection of them, and that they seem hand crafted, meaning they are creating it manually and without a software; or it is a good one.
So, I can't really help you , sorry.