Nearly half of UK schools have absolutely no AI policy — not for students, not for staff, not for anyone. Meanwhile, 76% of teachers are using AI tools daily. That math doesn’t work, and the consequences are already showing.
The National Education Union’s State of Education 2026 report paints a picture of a system where adoption has blown past governance. Teachers are improvising. Students are caught in the middle. And 67% of secondary teachers say they’ve watched critical thinking skills decline in their classrooms over the past year.
The Numbers That Should Alarm Everyone
The NEU report’s headline findings:
- 49% of UK schools have no AI policy covering staff or student use
- 76% of teachers report using AI tools daily — up from 53% just one year ago
- 67% of secondary teachers observe declining critical thinking among students
- A parliamentary inquiry into AI in education closed in April 2026 — but implementation guidance still hasn’t been issued
This isn’t a slow rollout. Teacher AI usage jumped from roughly half to three-quarters in twelve months. Policy creation moved at exactly zero percent for nearly half the country’s schools.
What “No Policy” Actually Means
When a school has no AI policy, it doesn’t mean AI isn’t being used. It means there are no guardrails:
- No guidance on which AI tools are appropriate for classroom use
- No rules about student AI use for homework, essays, or assessments
- No training on how to evaluate AI-generated content for accuracy or bias
- No protocols for data privacy when teachers input student work into AI systems
- No boundaries between appropriate AI assistance and AI dependency
Teachers are making these decisions individually, school by school, classroom by classroom. Some are thoughtful about it. Many aren’t. The inconsistency alone would be a problem — but the scale of unguided adoption makes it a systemic one.
The Critical Thinking Collapse
The most worrying finding: 67% of secondary teachers report declining critical thinking skills among students.
This isn’t anti-AI alarmism. This is teachers who work with young people every day saying they can see the difference. Students who rely on AI for brainstorming, drafting, and problem-solving are practicing less of the cognitive work that builds those muscles. The tool that promises to enhance learning may be quietly atrophying the skills it was supposed to support.
The UK isn’t alone in this. New Zealand’s own AI-in-education landscape has similar gaps — limited policy infrastructure alongside growing adoption. The difference is that the NEU report now gives us hard numbers on what happens when that gap widens without intervention.
The Policy Vacuum vs. The Legislative Rush
The contrast with the US is stark. Across 31 US states, lawmakers have introduced 134 AI education bills in 2026 alone — ranging from voluntary guidance frameworks to enforceable mandates on privacy, literacy, and teacher training. Some are thoughtful. Some are heavy-handed. But at least the conversation has moved from “should we do something?” to “what should we do?”
The UK had a parliamentary inquiry. It closed in April 2026. The implementation guidance still hasn’t landed. In the gap between inquiry and action, nearly half of schools have done nothing — not because they don’t care, but because they’re waiting for direction that hasn’t come.
What New Zealand Should Learn
For NZ readers, this is the cautionary tale. Our AI adoption rates in education are climbing. Our policy framework is still forming. The UK’s numbers show exactly what happens when you let adoption outrun governance:
- Teachers fill the vacuum themselves — with inconsistent, untrained use
- Students lose skills faster than anyone anticipates — 67% of teachers seeing critical thinking decline within a year is a red alert
- Policy arrives late and plays catch-up — and by then, habits are entrenched
The question isn’t whether AI belongs in classrooms. It’s already there. The question is whether we’ll build the guardrails before or after the damage becomes visible.
SOURCES
- National Education Union State of Education 2026 Report
- UK Parliamentary Inquiry into AI in Education (closed April 2026)
