Whether Sangi (Counting Rods) Can Be Used in Entrance Exams

I asked ChatGPT
whether Sangi can be used in entrance exams.
The following is the exchange.

Chat History

You:
Is the use of Sangi permitted in entrance exams?
ChatGPT:
In entrance exams, the use of "Sangi" (tools for representing numbers with rods) is not permitted in principle.

🚫 General Restrictions on the Use of Tools in Entrance Exams

For example, in the University Entrance Examination Center Test (Common Test),

• calculators, electronic dictionaries, and watches with functions such as smartwatches are prohibited

• rulers, compasses, and protractors are also prohibited as well

Also, in entrance exams for integrated junior and senior high schools and private junior high schools,

• rulers, compasses, and watches with calculation functions are not allowed to be brought in

• it is considered that even just holding them in your hand during the exam may be regarded as cheating as well

From these, it is understood that using special calculation tools to perform calculations during an exam is basically prohibited.

✅ Positioning of Sangi

• Sangi are tools used as specialized equipment to assist in "calculation," and it is highly likely they would be regarded as calculation aids similar to calculators or rulers.

• In many entrance exams, it is assumed that answers are created through "written calculation and thinking performed by the examinee themselves", and the use of physical calculation aids like Sangi is not permitted.

📌 Conclusion: Use of Sangi is Not Allowed

• It is, of course, not allowed in university entrance exams (such as the Common Test).

• In junior high and high school entrance exams as well, it is reasonable to consider that the use of Sangi is prohibited, just like compasses, rulers, and calculators.

📄 Supplementary Notes

• Unless explicitly stated in official documents, the tools that can be used in an entrance exam are listed in the exam guidelines or application requirements.
  → instances where Sangi are explicitly mentioned are extremely rare.

• It is most reliable to check directly with the exam center or each school.

If you would like to confirm for a specific entrance exam (e.g., junior high school, private school, high school entrance exams, etc.) or if you can provide the details from the exam guidelines, I can look into it more specifically for you.

You:
But couldn't I use a pencil instead of counting rods?
ChatGPT:
That is a very sharp question.
In conclusion:

However, there are some points to keep in mind.

✅ Why 'counting rod-style expressions' drawn with a pencil are likely to be permitted

• In entrance exams, there is a degree of freedom regarding 'what you write on your answer sheet or scratch paper during the exam,' and it is not a problem to draw diagrams, auxiliary lines, tables, or marks to assist with calculations.

• As long as it is to the extent of 'representing numbers with the arrangement of lines or symbols' like counting rods, it is accepted as an auxiliary expression for calculation.

• In fact, using handwritten expressions or methods based on classical Chinese or Japanese mathematics is not prohibited in itself.

⚠ Caution: 'Counting rods' as physical tools are not allowed

• 'Writing with a pencil' = OK if it is just a handwritten expression.

• However, **physically moving rods (for example, lining up pencils to represent numbers)** is highly likely to be judged as using a tool and considered cheating.

✅ Practical usage example (e.g., solving systems of equations)

The following format would likely be accepted as 'handwritten ingenuity':

a x + b y = p
c x + d y = q

↓　算木的に行を並べる
[a  b | p]
[c  d | q]

↓ 引き算で簡約
[a−c  b−d | p−q]

Alternatively, using lines to organize the placement of numbers is also not a problem.

📝 Conclusion

Method Bringing in physical counting rods (wooden pieces) ❌
Possibility of use Not allowed
Notes Prohibited as a calculation aid

Method Drawing rod-shaped symbols with a pencil ✅
Possibility of use Allowed in principle
Notes No problem if handwritten as part of the calculation process

Method Moving the pencils themselves to use them ⚠
Possibility of use Potential for cheating
Notes Could be considered 'tool usage'

If you want to incorporate 'counting rod-style thinking' to organize your thoughts, it is best to practice in advance so that you can write it like natural scratch work during the actual exam for peace of mind.
You:
Thank you very much.
ChatGPT:
You are very welcome!
Please feel free to consult me anytime. I can help with any topic, including entrance exam preparation and arithmetic techniques.
I wish you the best of luck! 📚✍️✨

ChatGPT's answers are not necessarily always correct. Please be sure to verify important information.