Teacher expertise is education infrastructure

On World Teachers’ Day, education systems are good at saying that teachers matter. There will be messages of thanks. Stories about inspirational teachers. Recognition of the patience, knowledge and commitment the profession brings to children and communities.

All of that is deserved. But the harder test begins when the celebration ends.

If teacher expertise is essential, are our education systems actually designed to protect and use it?

UNESCO’s 2026 World Teachers’ Day marks 60 years since the ILO/UNESCO Recommendation concerning the Status of Teachers. Its theme calls for societies to stand with teachers by protecting the profession, advancing its status and recognising its role in shaping the future.

Status is not created by praise alone. It is created by the conditions in which teachers are expected to work, learn and make decisions.

Expertise is more than subject knowledge

A strong teacher knows their subject. But professional expertise is not simply a collection of correct explanations waiting to be delivered.

It includes noticing that a pupil’s incorrect answer comes from a misconception rather than carelessness. Recognising when apparent disengagement may conceal anxiety or confusion. Choosing a different example. Deciding when to scaffold, when to wait and when to increase the challenge.

It also includes curriculum knowledge, assessment judgement, safeguarding awareness, relationships and an understanding of how learning changes over time.

Much of this work is easy to miss because it happens inside ordinary decisions. The lesson continues. The explanation changes. A question is rephrased. A pupil who might have withdrawn attempts the next step.

The visible output may be a lesson, worksheet, mark or report. The expertise lies in the decisions that made the output useful.

Infrastructure is valuable because other things depend on it

We usually describe infrastructure as the foundations that allow a system to function: transport, energy, communications or data. Teacher expertise serves a similar role in education.

Curriculum reform depends on teachers interpreting and sequencing what is expected. New technology depends on teachers judging when and how it helps. Inclusive education depends on teachers noticing barriers and adapting practice. Assessment depends on teachers understanding what a pupil’s work does, and does not, show.

Even the strongest programme or resource cannot implement itself. It becomes educational through professional use.

That is why treating teachers mainly as delivery capacity creates a contradiction. The system depends on their judgement while repeatedly designing work that restricts, fragments or consumes it.

Protecting expertise requires time

Professional judgement needs evidence. Evidence takes time to notice, discuss and use.

Teachers need time to review work, understand misconceptions, plan responsive teaching, speak with colleagues and families, and reflect on whether an approach is working. When every available minute is absorbed by delivery and administration, expertise does not disappear—but the opportunity to exercise it narrows.

Efficiency matters. Technology can reduce repetitive work. Better processes can remove duplication. But time saved should not automatically be filled with more transactions. Some of it must return to the professional work that improves learning.

Protecting expertise requires autonomy with support

Autonomy does not mean every teacher working alone or every classroom inventing its own curriculum. Nor does it mean removing accountability.

It means giving trained professionals meaningful room to respond within shared expectations. Clear curriculum aims, evidence-informed approaches and collaboration can strengthen judgement. Excessively prescriptive systems can weaken it by treating compliance as a substitute for thought.

The useful question is not whether teachers should follow guidance. It is whether guidance helps them make better decisions for the learners in front of them.

Protecting expertise requires development that continues

Initial training cannot prepare a teacher for every subject development, classroom context, technology or learner need they will encounter across a career.

A profession needs sustained access to subject development, mentoring, shared planning, research and disciplined reflection. It also needs routes for experienced teachers to contribute without having to leave teaching entirely to gain status or influence.

When development is reduced to occasional compliance modules, the system preserves certification but underinvests in expertise.

Protecting expertise requires teacher influence

Teachers are frequently consulted after a policy, platform or process has largely been designed. They are invited to validate whether it can work in practice.

That is useful, but it is not the same as shaping the problem, the success criteria or the design from the beginning.

If teachers hold essential knowledge about learning, implementation and unintended consequences, their contribution should begin earlier. Professional voice is not a courtesy added to change management. It is part of how we make better decisions.

Technology makes this question more urgent

AI and education technology can generate content, automate tasks and make information easier to retrieve. Used well, they can give teachers more time and better evidence.

But technology can also encourage a shallow account of teaching: content in, activity delivered, score recorded. The parts most easily automated are then mistaken for the whole profession.

The best test for a new tool is not simply whether it can perform a task. It is whether it strengthens the teacher’s ability to understand the learner and make a better next decision.

Technology should extend professional capacity, not make expertise less visible.

A practical test for education systems

When a school, government or technology provider says it values teachers, we can ask:

Does this give teachers better evidence or simply more data?
Does it return time to teaching and professional learning—or create another process to maintain?
Does it help teachers adapt responsibly?
Were teachers involved early enough to shape the design?
Does it make expertise easier to share without stripping away attribution and context?
Does accountability support improvement, or mainly produce evidence of compliance?

These questions turn appreciation into design choices.

Standing with teachers means building around expertise

World Teachers’ Day should celebrate the people who make education possible. It should also prompt a more demanding conversation about the systems surrounding them.

Teachers should not be described as essential while their time is treated as infinitely divisible, their judgement as a source of inconsistency and their experience as something to consult only after decisions have been made.

Teacher expertise is part of education’s core infrastructure. It needs maintenance, investment, connection and influence.

The future of education will be shaped by curriculum, technology, funding and policy. But whether those things improve learning will still depend on professionals who can interpret evidence, understand people and decide what should happen next.

If we believe that work matters, education systems should be designed accordingly.

Sources and further reading

UNESCO: World Teachers’ Day 2026
The 2026 theme and 60th anniversary of the ILO/UNESCO Recommendation concerning the Status of Teachers.
International Labour Organization: ILO/UNESCO Recommendation concerning the Status of Teachers, 1966
The original recommendation covering teacher preparation, professional development, employment and teaching conditions.
Education Endowment Foundation: Guide to Inclusive Teaching
Evidence-informed guidance on strong everyday teaching, carefully chosen adaptations and additional support.

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