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About Us



Please find below the answers to the frequently asked questions.


How many days in a week should we take Soroban lesson?  My kid takes other different lessons after school.


Three days in a week or more, and one hour each time practice is desirable, but if you have other after school lessons, continuous practice by adjusting your schedule would be effective.  Some learners at UNUMA KEISUUKAN initially started with a frequency of 2-3 days per week, but increased the pace as they enjoy learning and have more appetite. If you have a very busy day, only half an hour lesson would be of course fine.  At UNUMA KEISUUKAN, 80-90% of the learners take lessons every day.



If not good at arithmetic, isn't it difficult to continue the lesson? 


First, children have a limitless potential, and all of them can unleash it.  We will help identify what is the difficulty that a learner has, and give a lesson in an effective way considering the characteristics of each learner.


Even if he/she is not good at arithmetic, continued practice of Soroban will develop a quick calculation skill, giving a strong confidence to the learner enough to overcome the sense of difficulty at arithmetic.  Consequently, many learners have successfully improved their performance at arithmetic.


Some learners are at the beginning disruptive, and not well focused, looking away, or doing other things during the lesssons: however, as we repeatedly give instruction and sometimes with strictness, they will become to have an attitude of hard working with patience over time.  If they get to know joy of learning, and pleasure of making progress, it will be easier to pass each level. 


Please feel free to visit us for a free sample lesson. 


Not attending Soroban competition from UNUMA KEISUUKAN?


No attendance Soroban competitions now.  Since opening as UNUMADAI Soroban School and until 1990's, we had attended the competitions.  During those past years, we had thoroughly and intensively trained the learners to win each competition, and consequently many learners who joined it, had won the championship or ranked high in prizes in numbers of competitions held in  Gifu prefecture.

However, after going through those years, we shifted our purpose of the lesson to application of Soroban's potential to high arithmetic skills, and further to development of mathematical thinking ability.  Under this change, we renamed ourselves as UNUMA KEISUUKAN for restart in 2001.


UNUMA KEISUUKAN aims to train the learners to become a "Number Specialist" with high skills in calculations, mental calculations, sense of numbers, and mathematical thinking, through practice of  Soroban (Abacus), Mental calculations and Mathmatical Combination. Since our training purpose is not limited to development of high Soroban skill, we currently don't attend the Soroban competition to provide our learners the lessons that can attain the purpose.


Can we take Soroban official examination for a certified level?


​Yes, you can take the official examination held by the Japan Chamber of Commerce Industry three times in a year, as well as the official examination held by The League of Japan Abacus Associations for three times in a year.


Is it possible to practice at UNUMA KEISUUKAN for DAN certificate (very high level Soroban grade)?


Yes, it is.  In Soroban training for DAN certificate, we provide you with the instruction specific to that purpose. 



Since opening, UNUMA KEISUUKAN have trained many learners certified for DAN, as well as those certified for upper DAN levels.   And we currently have the learners certified for DAN.  

If you have any other questions, please feel free to contact us.




Available during ​weekdays and holidays

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