The Clock That Nobody Could Start

For a long time, nobody really knew when a teacher's working day began. They arrived before the bell, obviously. They stayed after it. They marked books at the kitchen table, wrote reports on Sunday afternoons, and spent summers redesigning schemes of work that nobody had asked them to redesign. But none of that had a formal name, a rate, or a legal definition. It just… happened. And for most of the nineteenth century, that vagueness suited everybody except the teachers.

Why did the NUT resist calling teaching a trade?

The National Union of Teachers, founded in 1870, had a peculiar problem. If it argued too hard that teaching was a skilled trade – like bricklaying or printing – it invited the response that teachers should be paid by the hour, managed by the clock, and stripped of any pretension to independent judgement. If it argued instead that teachers were public servants answering to the Board of Education, it handed government the right to dictate almost everything. Neither frame fitted, and the union knew it.

So the NUT spent several decades quietly, incrementally, through arbitration hearings and carefully worded petitions, making the case for something else entirely. Teaching was a profession. Not a trade, not a post, but a calling that required preparation time, intellectual labour done away from the classroom, and a degree of autonomy over how that labour was organised. That argument sounds obvious now. In 1890, it was genuinely radical.

What "Professional" Actually Bought Them

The payoff was not mainly about money, though money eventually followed. It was about time – specifically, about whose time it was. If a teacher was a professional, then the hours spent planning lessons, marking, and keeping records were not goodwill. They were work. They counted. They had to be built into any reasonable account of what a teacher's week actually contained.

This is the hidden architecture underneath the modern school year. The 195 days that teachers in England are required to attend (five of which are staff training days pupils don't attend), the directed time limit of 1,265 hours per year, the contractual recognition that lesson preparation is part of the job and not a hobby – none of it arrived by accident. It arrived because the NUT, across nearly a century of arguments, forced the question: what exactly is a teacher's working time? And kept asking until statute finally answered it.

The same puzzle haunts a lot of jobs where the thinking is inseparable from the person doing it.

The Lesson Hiding in the Lesson

The funny thing is that most people inside schools now take all of this for granted. Planning time is just planning time. The school year is just the school year. But somebody had to win it, in rooms that smelled of coal smoke and legal paperwork, against employers who genuinely believed that a teacher's working day ended when the last child left the building.

It didn't. It just moved to the kitchen table. The union's achievement was persuading the country that the kitchen table counted too.