Industry Analysis

Four Structural Forces That Have Frozen the Cram-School Industry for 40 Years

Why pattern-memorization teaching survives — and why the same forces operate in any country where exam preparation becomes an industry.

Japan has had voices calling for structural — rather than memorization-based — math instruction for decades. Reformist educators, teachers, researchers, a handful of school operators. Their proposals never reach the industry as a whole. The reason is not Japanese culture or Japanese tradition. It is that four structural forces combine to keep the industry frozen, and those four forces operate wherever exam preparation becomes an industry.

The teaching method that defines elite junior high entrance exam preparation in Japan today — classify problems by surface "type," memorize the matching solution, drill until automatic — was essentially fixed in the 1980s. Forty years later, the underlying method is unchanged. Reform talk has come and gone. The method has not.

This piece names the four forces that produced that result. None of them are uniquely Japanese. Japan happens to be a place where the forces are unusually visible, because the industry is large, mature, and competitive. But the same forces are at work in any country whose education system is shaped around selective exams.

Force 1Reformers Who Talk but Do Not Implement

Many cram schools advertise "thinking skills" and "developing autonomy" on their banners. The actual teaching materials inside are traditional pattern memorization. The slogan does not reach the classroom.

Some reformers genuinely try to change things. But across the industry as a whole, the reformers who only talk are the majority. Banners attract enrollment; changing the substance is expensive and takes years to show results. As a short-term business decision, it is more efficient to change only the slogan.

The result is a strange equilibrium. Across the industry, reform "appears" to be in progress — every school is using the language of thinking skills — while in fact almost nothing is moving. "We teach thinking skills" becomes a marketing phrase, the materials and methods stay identical to every other school's, and the appearance of change substitutes for change itself.

Force 2Traditionalists Protect Their Position

Veteran instructors built their careers on pattern memorization. Memorize the type, identify the type, apply the matching solution. That sequence is their professional expertise.

If the teaching method changes, that expertise becomes worthless. Thirty years of practice with one method, and someone now says "this method does not actually fit how children's cognition develops." What is the veteran supposed to do? Re-learn the discipline from scratch, or retire?

Naturally, they prefer the status quo. Their defense of pattern memorization is dressed in respectable-sounding reasons: "children must build the basics first," "thinking comes after the patterns are mastered," "rushing to talk about thinking skills is unrealistic." The reasoning sounds careful. The function is self-protection.

This is not only individual self-protection. It is also industry-level self-protection. As long as pattern memorization remains the mainstream method, veteran instructors are safe. So the industry as a whole has a built-in force pushing toward defending the existing method. (For more on how authority figures sustain pressure on children inside this system, see our piece on overwhelmed by junior high exam information.)

Force 3Parents Cannot Evaluate Teaching Content

What do parents look at when choosing a school? Exam results. Word of mouth. Local reputation. Brand recognition. These are externally visible signals.

Teaching materials, curriculum design, the actual instructional method used by individual teachers — these are not externally visible. They require sustained effort and domain knowledge to evaluate.

Most parents make decisions based on what is visible. Few parents will read a workbook page-by-page and judge whether the problems are well-designed. Few parents will analyze a curriculum to see whether the sequence matches how a child's cognition develops. This is not a criticism of parents — it is a recognition that the work required is unrealistic for a non-specialist.

If parents cannot evaluate teaching content, the industry has no incentive to invest in teaching content. Winning on visible exam results is the more efficient play. Investing in better materials costs money, and the parents who can recognize the difference are too few to justify the investment.

So the industry competes on results, not on substance. Producing results in the short term means pattern memorization. Schools that invest in deeper instruction are at a competitive disadvantage and tend to be selected out.

Force 4Children Can Pass the Exams in the Short Term

The industry's method — pattern memorization — does work for some children. Children with strong rote-memory ability really do pass elite junior high entrance exams using this method. In fact, many of the children who get into top schools get in this way.

This functions as the industry's universal justification. "Our method works — students get in. We have the results. If the method were wrong, students would not get in." It is hard to argue with.

But there are two invisible sides to this.

The children who could not pass through pure memorization — could they have passed if they had been trained in structural thinking instead? Nobody runs that experiment. The children who fail are simply judged "not capable enough," and the industry's responsibility is never tested.

The children who do pass — what happens to them in junior high and beyond? When the math gets harder and pattern memorization stops working, where do their difficulties get attributed? Not to the cram school. The cram school's contract effectively ends at the entrance exam. If a student collapses in junior high mathematics, that is treated as a separate problem. (We examine this collapse in detail in junior high entrance exams and educational abuse.)

So the industry is evaluated only on short-term pass rates. Long-term educational effects are not on the scorecard. As long as the evaluation metric is short-term selection, pattern memorization continues to be the rational choice.

A Deeper Issue: Adults Imposing Their Own Cognitive Stage on Children

Beneath the four structural forces, there is one more problem: adults are imposing their own cognitive stage on children.

An adult can do abstract symbolic operations. Setting up x and y and solving the equation is faster, for an adult. So the adult looks at a child being asked to draw a diagram and thinks "why not just use algebra?" The diagram looks like a degraded version of the equation.

But the child has not yet developed abstract operations. The diagram is the only path to genuine understanding. Children who first build understanding through diagrams are the children who later acquire abstract operations as "intuition-backed comprehension" rather than as memorized procedure.

The reason adults inside the industry rarely feel anything is wrong with memorization-based teaching is that the adults are adults. "If you memorize the pattern, you can solve the problem" is true — for an adult. But that is the adult's solution, not a solution adapted to a child's stage of cognitive development. The industry imposes adult cognition on children.

This is not malice. It is a structural cognitive gap. The people who run the industry are adults. The people who write the materials are adults. The people who teach are adults. When adults design educational materials using their own cognition as the reference point, the natural result is that adult methods get pushed onto children.

The Four Forces Reinforce Each Other

These four forces do not exist independently. They reinforce each other.

Reformers only talk, so traditionalists can comfortably protect their position. Traditionalists prefer the status quo, so materials do not change. Materials do not change, so even parents who try to evaluate cannot tell schools apart. Parents cannot evaluate, so the industry never invests in substance. Short-term passes still happen, so nobody calls the situation a problem.

This loop has been running for forty years. Individual schools that try to break the loop find that the rest of the industry does not move with them, and so they take a competitive penalty for trying. Most are eventually pulled back into the loop.

Operating Outside the Loop

Changing the entire industry is, realistically, not possible. No actor has the leverage to change all four forces.

What is possible is to operate outside the loop. Step away from the industry mainstream and build an independent instructional system. Stop optimizing for student count. Accept only families who actively want substance over reputation. Refuse the industry's evaluation metrics — exam-result rankings, total enrollments, brand visibility.

This is a competitive disadvantage by industry standards. It is also the only path that lets us deliver instruction we believe in. Trying to do "the real work" while inside the industry just gets you pulled back into the loop.

Operating outside the loop, as an independent school, is the structural choice CreateBase has made. (For the full reasoning behind why our practice system was built the way it was, see why this system exists.)

Why This Matters Beyond Japan

None of the four forces above is Japanese. Reformers who only talk, professionals who protect existing expertise, parents who cannot directly evaluate teaching content, the dominance of short-term selection results — these are properties of how an industry forms around selective exams. They are not properties of Japan.

Japan happens to be a high-resolution case. The industry has been running at scale for decades; the four forces are visible in clean form; the long-term costs are now showing up in cohorts of students who passed the exam and then collapsed under abstract mathematics. (Also discussed in why education's problems repeat across borders.)

If your country has — or is building — a large industry around competitive exam preparation, the four forces are likely already at work. The slogans will be different. The institutional names will be different. The structure underneath is the same.

Narrator: Representative, CreateBase  ·  Written by: Alba
CreateBase is a small school founded in Osaka in 2022, run as a single-operator practice. It admits only families that actively share the goal of training structural thinking, and its alumni include students admitted to Nada (灘) — one of Japan's most competitive schools. Alba is CreateBase's education-focused AI; the representative supplies field observation, analysis, and lived experience, and Alba shapes them into written form. All factual claims are reviewed by the representative before publication.
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