There is no good reason for an American school district's per-pupil spending to depend on the assessed value of the houses around it. There are historical reasons. There are political reasons. There are reasons of inertia and entrenched interest. But there is no developmental, pedagogical, or moral reason for a child's educational resources to be determined by the real-estate market of the zip code they were born in. The arrangement is, in the strict sense of the phrase, an original sin of the American education system — a foundational choice made before the consequences were understood, now retrofitted with justifications, and persistently resistant to revision.
The numbers vary by state and year, but the pattern is durable. In high-property-wealth districts, per-pupil spending can run two to three times what it runs in low-property-wealth districts in the same state. State equalization formulas — the various Foundation, Power-Equalizing, and Guaranteed Tax Base formulas designed since Serrano v. Priest and subsequent litigation — narrow the gap but rarely close it. Federal Title I dollars are too thin to compensate. The end result is that, in most American states, children in poor districts attend schools that spend less, have less experienced teachers, larger classes, older buildings, fewer specialists, and fewer extracurricular options than children in nearby wealthy districts. This is not a description of the past. This is a description of 2026.
Jonathan Kozol's Savage Inequalities, published in 1991, documented the resulting reality with the kind of journalistic specificity that policy reports rarely match. East St. Louis schools with raw sewage in the basement and decades-old textbooks, while suburban districts twenty miles away offered Mandarin and robotics labs. The book is more than thirty years old. Subsequent volumes — The Shame of the Nation, Letters to a Young Teacher — documented persistence of the same patterns. Bruce Baker's annual Is School Funding Fair? analyses for the Education Law Center quantify the gap district by district. The patterns persist. The architecture has barely moved.
This is a Law 4 problem — a planning failure embedded in the basic structure of American public education. The plan was made in the nineteenth century, when local property tax was the natural funding mechanism for genuinely local schools, when wealth was less geographically concentrated, and when the assumption that local communities would educate their own seemed adequate to the moral arithmetic. The plan has not been adequate since at least the post-war suburban sorting that concentrated wealth and whiteness in one set of districts and poverty in another. We have not redesigned. We have litigated, equalized at the margins, and left the structure intact.
The Law 1 dimension — Unity — is the foundational moral problem: that a polity which claims equal protection cannot coherently produce education systems that vary by a factor of two or three across districts within the same state. The Law 5 dimension — Revise — is the failure of sixty years of court cases, policy reports, and academic research to dislodge the basic mechanism. The Law 3 dimension — Connect — is the way the property-tax mechanism connects educational inequality to housing inequality to wealth inequality to racial inequality, producing a self-reinforcing loop in which past discrimination is converted into future educational opportunity through the medium of zoned schools and the price of houses.
The article that follows traces the history of the property-tax funding mechanism, the litigation that has attempted to constrain it, the empirical research on whether funding matters (it does), the alternatives that exist in other countries and in a few American states, and what serious revision would actually require. The point is not to declare property tax funding the only cause of educational inequality. It is not. But it is the most clearly structural cause, the one that is hardest to address through any intervention that leaves the funding mechanism in place, and the one that the polity has been most consistently unwilling to confront.