Will AI replace teachers? Unlikely, and here's why

Keith Williams

2nd November 2026

Will AI replace teachers? It’s unlikely. AI is already helping schools with some tasks, such as planning lessons, creating resources and giving feedback. But the heart of teaching is people: building relationships with children, managing a classroom, keeping pupils safe and noticing when someone is struggling.

The same is true for teaching assistants, whose one-to-one and small-group support is even harder to hand over to a machine.

Below, we look at what AI is actually being used for in schools, what the evidence says about teaching jobs, and why people in classrooms still matter.

What AI is being used for in schools

The Department for Education’s guidance, Generative artificial intelligence (AI) in education (last updated August 2025, England), sets out how schools can use tools like ChatGPT. It mentions:

creating resources and planning lessons and the curriculum
revision activities
feedback and tailored support for pupils
administrative tasks

The aim, in the guidance’s words, is to reduce “some of the administrative burdens that hard-working teachers, staff and school leaders face” so they can “focus on what they do best: teaching”.

The guidance is also clear about the limits. Staff “must use their professional judgement” when using these tools, and anything AI produces has to be checked for accuracy. It says AI “cannot replace the judgement and deep subject knowledge of a human expert”, and that technology “should not replace the valuable relationship between teachers and pupils”.

In other words, the government sees AI as a helper for teachers, not a replacement for them.

What the evidence says about jobs

School staff numbers are higher, not lower. In November 2025 there were about 466,400 full-time equivalent teachers in state-funded schools in England. That’s 1,900 fewer than the year before, but 24,900 (5.6%) more than in 2010/11. Teaching assistant numbers have grown faster still: from 221,500 in 2011/12 to 295,200 in 2025/26, a rise of 33%. Source: DfE, School workforce in England (published June 2026, England).

Teaching is “exposed” to AI, but exposed doesn’t mean replaced. A 2023 Department for Education report, The impact of AI on UK jobs and training, found that teaching occupations show higher exposure to AI, especially to tools like ChatGPT that work with language. Further education teaching was among the jobs most exposed. But the report is careful to say it measures exposure, not whether a job will be “augmented (aided) or replaced (substituted)”. It points to international research suggesting most jobs are only partly exposed and are “more likely to be complemented rather than substituted”.

These are predictions about what AI could do, not evidence that it is replacing teachers. So far, the workforce figures point the other way.

What AI can’t do

AI can write a worksheet in seconds. Much of what happens in a classroom is a different kind of work:

Building relationships. Children learn best from adults they know and trust. That bond takes months of small, everyday moments.
Managing behaviour. Calming a room, defusing an argument or knowing when a child needs a quiet word rather than a sanction takes judgement in the moment.
Keeping children safe. Safeguarding depends on noticing the signs, such as a change in mood, a bruise or something said in passing, and acting on them. That responsibility sits with people.
Supporting children with SEND. Pupils with special educational needs and disabilities often need patient, physical, one-to-one help that changes from day to day.
Reading the room. A good teacher sees confusion on a face and changes course halfway through a lesson.
Helping a child who is struggling. Whether the problem is at home, with friends or with the work, a struggling child needs a person who notices and cares.

All of these are harder to automate, and they are the core of the job.

Why teaching assistants matter even more

If AI takes on more of the planning and admin, the parts of school life that remain are the human ones, and that is where teaching assistants do most of their work. TAs support pupils one to one and in small groups, help children with SEND take part in lessons, and give a teacher an extra pair of eyes and hands in a busy classroom. Schools in England now employ about 295,200 full-time equivalent teaching assistants, a third more than in 2011/12 (DfE).

If you’d like to become a teaching assistant, there are two common starting points:

The Supporting Teaching and Learning Certificate Level 2 is for people new to the role. You’ll need to work or volunteer in a school or college.
The Level 3 Certificate suits people with some classroom experience. It needs at least 100 hours in a school or college.

Both are regulated NCFE CACHE qualifications and must be completed in England. Experienced TAs can prepare for a higher-level role with the Higher Level Teaching Assistant Level 4 course. HLTA status itself is awarded through a school-based assessment. Read more in how to become a teaching assistant.

Teaching adults

If you’d rather teach adults, for example at work, in a college or as a freelance trainer, the Education and Training Award Level 3 is the usual first step. It’s a regulated TQUK qualification. Note that it is not qualified teacher status (QTS), which you’d need to teach in most state schools.

Other jobs that are harder to automate

Teaching isn’t the only career built on people. Care work, early years, counselling and other hands-on roles are also hard for AI to take over. See our guide to AI-proof jobs for eight of them.

FAQ

Will AI replace teachers?

It’s unlikely. AI can help with lesson planning, resources and feedback, but the Department for Education’s own guidance says it “cannot replace the judgement and deep subject knowledge of a human expert”. The number of teachers in England is higher than in 2010/11.

Will AI replace teaching assistants?

Also unlikely. Teaching assistants spend much of their time supporting individual children and small groups, including pupils with SEND, which is very hard to automate. TA numbers in England rose by a third between 2011/12 and 2025/26.

Is teaching a safe career?

No career is guaranteed, and AI will change parts of the job, mostly the planning and admin. But teaching and classroom support rest on relationships, safeguarding and judgement, so they are harder to automate than many desk-based jobs.

Not sure which route suits you? Talk to a course advisor: call 0333 344 2126 or email learn@associationoflearning.com.