Why Japan still teaches the soroban in 2026
Pocket calculators are 50 years old. Smartphones do better math than any soroban master. Yet Japan still teaches the bead frame in primary school — on purpose. Here is why.
Walk into a Japanese primary-school classroom today and there is a good chance you will hear the click of beads. The soroban — a 17th-century calculating tool with no electricity, no battery, and no screen — is still part of the curriculum, mandatory in third grade and elective beyond. Visitors are baffled. Why? Calculators do this faster, more accurately, and for free.
What the soroban actually teaches
The soroban is not really a calculator anymore. In a country where every child has a smartphone, no one in Japan is using a bead frame for actual arithmetic outside the classroom. The soroban survived the calculator because the calculator does not do what the soroban does. The soroban trains a mental skill — internal visualization of a positional number system — that a calculator entirely bypasses.
The end-state of soroban training is anzan: doing arithmetic on an imagined abacus, with the eyes closed if needed. That mental abacus is a working-memory artifact the child carries with them for life. It is not arithmetic; it is a thinking tool. And thinking tools survive the technology that mimics their output.
The Japanese teachers’ two arguments
When you ask Japanese maths teachers why they still teach the bead frame, you typically hear two answers. The first is mathematical: number sense lands deeper when a child has manipulated a base-10 positional system with their hands. The places are not abstract; they are columns in front of them. Later abstract maths (algebra, place value, scientific notation) sits on top of that physical foundation.
The second answer is cognitive — and it is the more interesting one. Japanese educational research from the 1980s onward documents downstream benefits in trained children: better working memory, faster reading comprehension, longer sustained attention. None of these are arithmetic skills. The soroban turns out to be a general-purpose brain trainer that happens to look like a calculator.
Where soroban training shows up later
- Mental math competitions — the obvious one. Japan still produces world-record holders in mental arithmetic, almost all soroban-trained.
- Standardized test scores. Children who completed soroban training in primary school score consistently higher on mathematics sections of high-school entrance exams.
- Programming aptitude. Several studies have correlated soroban training with success in early programming education — the visualization translates.
- Music and rhythm. The same right-brain visualization the soroban trains also shows up in music aptitude. Soroban-trained children pick up instruments faster on average.
- Reading speed. Less obvious; the working-memory boost from holding a mental abacus also helps holding the structure of a paragraph or argument.
We are not teaching arithmetic. The calculator does arithmetic. We are teaching children how to think with numbers in their head.— Soroban teacher, Osaka primary school
What it tells us
The lesson from Japan is not that every country should mandate the soroban in primary school. The lesson is that a calculating tool can outlive its calculating purpose if the act of using it builds something else — focus, visualization, working memory — that the calculator does not build. The soroban is a Trojan horse for those skills. Japan understood that decades ago and never stopped.