Some of my thinking about curriculum has come from noticing the gap between what looks clear in planning and what actually happens across classrooms.
On paper, things can look coherent. Standards are written, units are developed, and teachers work from a shared framework. In theory, this should help create consistency across classrooms and year groups. Everyone is working from the same broad plan, so students should experience something connected and coherent.
Increasingly, though, I have found myself questioning how stable that process really is.
Even with shared plans, curriculum is constantly being interpreted. Teachers make decisions about emphasis, pacing, sequencing, examples, explanation, and how to respond to the students in front of them. Some of these decisions are deliberate. Others happen almost automatically, shaped by experience, confidence, time, context, and what each teacher sees as most important.
This becomes especially noticeable when multiple teachers are working within the same grade level. Two classrooms may be following the same unit, using the same standards, and working towards similar outcomes, but students can still experience the learning quite differently.
It also matters across year groups. What students learn in one year shapes what they are ready for in the next. If each teacher or team interprets the curriculum in slightly different ways, small differences can gradually become larger gaps in continuity.
This does not mean teachers are doing something wrong. Adaptation is part of good teaching. Teachers need to respond to their students, make professional judgements, and adjust learning so that it works in context. In many ways, that flexibility is one of the strengths of teaching.
At the same time, it complicates the idea that curriculum can ever be simply “delivered” in a uniform way.
Curriculum is not simply delivered. It is interpreted and shaped through practice.
This has changed how I think about curriculum coherence. I used to think about coherence mainly in structural terms: aligned standards, shared documents, common assessments, and planned progression. Those things matter. Without them, curriculum can quickly become fragmented.
But they are not enough on their own.
Increasingly, I think coherence depends just as much on shared understanding. Teachers need time and space to talk about what the curriculum is actually asking of them, what matters most, how learning should build, and what students are expected to understand more deeply over time.
Without that shared understanding, the same curriculum can be interpreted in very different ways. On paper, the system may look coherent. In classrooms, the experience may be much less consistent.
This has also changed how I think about curriculum leadership.
Leadership in this area is not only about writing documents, organising units, or checking alignment. Those things are important, but they are only part of the work. Curriculum leadership also involves creating the conditions for teachers to make sense of the curriculum together.
That means discussion, clarification, collaboration, and sometimes revisiting assumptions that may have gone unspoken. It means recognising that coherence is not created simply because a document exists. It develops when people build enough shared understanding to make connected decisions in practice.
Seen this way, coherence becomes less about compliance and more about collective understanding developed over time.
I do not think this makes curriculum work weaker or less precise. If anything, it makes it more important. Curriculum cannot really be separated from the people who interpret it, or from the classrooms in which it is experienced.
Perhaps coherence is not something that can simply be built into curriculum documents. Perhaps it develops more gradually through shared understanding, ongoing discussion, and the everyday work of teaching.