A. Parts of the soroban Let’s first introduce the various parts of the soroban. Compare your soroban with the picture below. a 1-unit counter a counter that represents 1, 10, 100, 1000, etc. b 5-unit counter a counter that represents 5, 50, 500, 5000, etc. c rod d bar e unit point a
servepreet
Ms. Kimiko Kawano
Researcher, Nippon Medical School, Center for Informatics and Sciences.
July 14, 2000
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Dr. Toshio Hayashi, Doctor of Engineering
Professor, Osaka Prefecture University
Director, Research Institute for Advanced Science and Technology (RIAST) August 24, 2000
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Ms. Shizuko Amaiwa
Professor, Shinshu University, College of Education
January 20, 2001
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