ShowMe Soroban® is a revolutionary abacus-tutoring software. Its patent-pending technology teaches the recognized techniques for mastering the abacus enabling our users to perform amazing mental calculations. Use ShowMe Soroban lessons for only 15 minutes a day and quickly master the abacus. Use ShowMe Soroban daily as part of a whole-brain fitness regimen. The customized abacus exercises provide a rewarding mental workout appropriate for all ages and mathematical skill levels. Why is learning the soroban is so important? The Japanese abacus, or soroban, has been perfected over a period of hundreds of years; as have the best practices for mastering it. The abacus continues to be commonly used in spite of the popularity of calculators and computers.