Why the Traditional Timetable Deserves Another Look

Aug 8
5 min read

My close friend Arun Babu is a lawyer, not an educator, which is probably why he could say what he said without any of the guilt teachers carry around this topic. He has given me his consent to use his real name and profession here, since the entire crux of this piece stems from his idea. We were talking about school, and I asked him a question I like asking people outside education.

What is the one thing about being a student that genuinely bothered you, that no one ever properly addressed?

He did not hesitate. He said it was the switching. Maths, then English, then History, then Science, four minutes of corridor between each one, and somewhere in that corridor he was expected to have already become a different kind of thinker. He said he spent the first ten minutes of almost every class still partly in the last one, and that nobody ever named it as a real problem. It was just filed under discipline, under focus, under try harder.

Then, the way people outside a system often do, he proposed fixing it in one sentence. Only two core subjects a day. Everything else, sport, art, music, clubs, unstructured time, woven through the gaps instead of squeezed to the edges of the timetable.

I did the thing teachers do when a non-educator redesigns school in one sentence. I smiled, said that's interesting, and privately filed it under nice idea, not how the world works.

I was wrong to file it away so quickly, and here is why.

There is now a fairly precise number attached to what Arun was describing. Gloria Mark, who has spent two decades at UC Irvine watching how people actually work rather than how they say they work, found that after an interruption, it takes an average of twenty-three minutes to return to a task with the same depth of focus you had before. Not twenty-three seconds. Twenty-three minutes. Multiply that by six or seven subject changes in a single school day, and a student is not losing a few minutes of settling-in time here and there. They are losing hours, structurally, before a single new concept has even landed.

The psychologist Nelson Cowan has spent much of his career arguing something that sits underneath this. The part of working memory we can actually hold in active focus at any one time is small, tightly capped, nowhere near as large as we like to assume. Every switch of subject asks a student to empty that narrow space and refill it from scratch. Do that often enough in a day, and a meaningful share of a student's mental effort is spent on the refilling, not on the thinking the refilling was supposed to make room for.

Arun's version was not two subjects forever. Two in a day, given the room to actually be entered rather than skimmed, with movement, art, music, or plain unstructured space placed between them instead of tacked onto the end of the day as a reward for finishing the real work. Not less richness. A different shape of richness, built around what a brain can actually do rather than around what fits neatly on a printed timetable.

Here is the part that changed my mind entirely. This is not a hypothetical. In 1989, an American educator named Joseph Carroll proposed almost exactly this, and called it the Copernican Plan, students concentrating on one or two subjects at a time in extended blocks instead of cycling through seven or eight a day. He did not leave it as a paper. He piloted it in his own school district, and it was later adopted and formally evaluated across a handful of very different high schools. It resurfaced again decades later at a secondary school in Surrey, British Columbia, tested under the same name. It never became mainstream. But it was tried, documented, and mostly forgotten, not disproven, which is a very different thing.

Finland, has been running its own version of the same instinct for years. Most Finnish students move through only three or four subjects a day, and every single lesson, regardless of subject, ends with a mandatory fifteen-minute break outdoors, in all weather. The break is not a pause from learning. It is treated as load-bearing, structurally necessary to what comes next. Finland does this on a shorter school day than most countries run, and its students still perform consistently well on international comparisons. It is not Arun's exact model. But it rests on the same wager, that protecting a student's attention on purpose is not indulgence. It is the condition the rest of learning depends on.

The American Academy of Pediatrics updated its guidance on recess this year, stating plainly that a break is not time subtracted from learning but a necessary condition for a child's cognitive, social, and emotional functioning, and that it should never be withheld for academic reasons. A body of doctors, not educators, is now saying formally what Arun said to me over dinner. The unbroken academic day is not neutral. It has a cost, and the cost has a name now, several names, in several fields that rarely speak to each other.

I still think of the last twenty minutes of most lessons I teach, the point where a class finally finds its footing, where the questions sharpen and the silences turn thoughtful, right before the bell moves everyone somewhere else. I never had research language for that feeling. I just felt the room arrive somewhere, and then have to leave before it could stay.

None of this argues for a thinner curriculum. It argues for asking honestly whether the shape of a school day was ever designed around how attention actually works, or whether it was designed around what is easiest to print on a timetable. Those are two different questions, and for a long time we have answered only the second one while quietly assuming it answered the first.

I still do not know if two subjects is the right number for every school, or every age, or every student. But I know it is not a fantasy dreamed up by someone with no stake in the outcome. It has a name, a pilot, a country, and now a pediatric body behind at least the shape of it. And I know Arun deserved a better answer, back when he was the one sitting in that corridor, than the one teachers like me have been giving for years.

What is the one part of your own school day, as a student or as the person now running one, that quietly asked more of a brain than it was built to give?

Lakshmi Priya S works as an Middle Years Programme English Facilitator at The Shri Ram Academy in Hyderabad, India, where she guides and supports student learning, writing, and creative achievements. Previously, she taught English and Global Perspectives at GEMS Modern Academy in Kochi. This was originally published August 2, 2026, and is reposted here with her permission. You can reach out to Lakshmi to further discuss her thinking via email here.