The Reading Skill That Isn't a Skill
We hand children worksheets to practise reading comprehension, as if it were a muscle. A famous experiment with a baseball passage suggests we've misunderstood what comprehension actually is - and why some children read every word and still miss the story.
In 1988, two researchers gave a group of eleven and twelve year olds a short passage to read about a baseball game. First the children took two tests. One measured how well they read. The other measured how much they knew about baseball. Then the researchers checked who had understood the passage best.
The strong readers did not come out on top. The children who knew baseball did. Poor readers who understood the game left strong readers who didn't trailing behind them. On this one passage, knowing the subject mattered more than reading ability itself.
That finding has quietly troubled reading experts ever since. Because it cuts against something almost every parent and teacher believes: that comprehension is a skill, and skills get better with practice.
The trouble is that these strategies stop helping surprisingly fast. The cognitive scientist Daniel Willingham has pointed out that a few lessons in comprehension strategy give children a small boost, and then the benefit flattens out. More practice does almost nothing.
Why? Because understanding a piece of writing is mostly about filling in what the writer left out. Every text assumes the reader already knows things. "The pitcher walked the batter" is a wall of confusion if you know nothing about baseball, no matter how fluently you can pronounce each word.
The reader who follows the sentence isn't using a better skill. They are supplying knowledge the writer took for granted. Comprehension turns out to be less like a muscle and more like a net. The more you already know, the more the words can catch on.
Early books are built from familiar life. Pets, birthdays, a trip to the seaside. A child can lean on what they already know. But by Year 4 and 5 the texts change. They start referring to volcanoes, ancient Egypt, the water cycle, the Tudors. The words get denser and the knowledge behind them gets wider.
Children who have picked up a broad general knowledge, often just from conversation and curiosity at home, sail through. Children who haven't begin to struggle, even if their decoding is perfect. And here is the uncomfortable part. The gap tends to widen rather than close. The children who understand more read more, and reading more teaches them more still.
There is even a rough threshold. Studies of vocabulary suggest a reader needs to know around 95 to 98 per cent of the words in a text to follow it comfortably. Drop below that and the meaning starts to fall apart. A child missing one word in twenty isn't lazy. They are trying to build a picture with too many pieces gone.
The journalist Natalie Wexler made a similar case in her 2019 book The Knowledge Gap. She described classrooms spending endless time on comprehension exercises while teaching very little actual history, science or geography, then wondering why comprehension didn't improve.
The evidence has started to back this up. A 2023 study of children in Colorado charter schools, which taught a deliberately content-heavy curriculum from the early years, found they went on to score noticeably higher not just in reading but in science and social studies too. England, having pushed both phonics and a broader knowledge base, placed among the strongest countries in the world in the most recent international reading tests for nine and ten year olds.
None of this means strategy lessons are worthless. A little goes a long way. But a little is all it takes. The heavy lifting is done by everything a child knows before they open the book.
The trip to the museum. The documentary about deep-sea creatures. The rambling dinner conversation about why the sky goes red at sunset. The questions you actually answer instead of brushing off. All of it is quietly stocking the shelves your child will one day reach for when a paragraph gets hard.
Breadth matters more than we tend to think. A child who has heard a bit about rivers, empires, machines, weather and the human body has a hook waiting for each of those subjects when it turns up on the page. A child who hasn't has to build the whole thing from scratch, mid-sentence, while also trying to read.
So the next time reading comprehension feels like a chore to be drilled, it might help to remember the children who knew baseball. What they had wasn't a technique. It was a head full of the world. And that, more than any worksheet, is what turns words into meaning.
The strong readers did not come out on top. The children who knew baseball did. Poor readers who understood the game left strong readers who didn't trailing behind them. On this one passage, knowing the subject mattered more than reading ability itself.
That finding has quietly troubled reading experts ever since. Because it cuts against something almost every parent and teacher believes: that comprehension is a skill, and skills get better with practice.
The problem with practising comprehension
Once a child can decode - sound out the words on the page - we tend to assume the rest is a set of techniques. Find the main idea. Make an inference. Skim for the answer. Schools hand out worksheets to drill these, and children spend hours doing them.The trouble is that these strategies stop helping surprisingly fast. The cognitive scientist Daniel Willingham has pointed out that a few lessons in comprehension strategy give children a small boost, and then the benefit flattens out. More practice does almost nothing.
Why? Because understanding a piece of writing is mostly about filling in what the writer left out. Every text assumes the reader already knows things. "The pitcher walked the batter" is a wall of confusion if you know nothing about baseball, no matter how fluently you can pronounce each word.
The reader who follows the sentence isn't using a better skill. They are supplying knowledge the writer took for granted. Comprehension turns out to be less like a muscle and more like a net. The more you already know, the more the words can catch on.
The slump nobody warns you about
This helps explain something that puzzles a lot of parents. A child reads beautifully at six or seven, then seems to stall around eight or nine. The reading experts have a name for it: the fourth-year slump.Early books are built from familiar life. Pets, birthdays, a trip to the seaside. A child can lean on what they already know. But by Year 4 and 5 the texts change. They start referring to volcanoes, ancient Egypt, the water cycle, the Tudors. The words get denser and the knowledge behind them gets wider.
Children who have picked up a broad general knowledge, often just from conversation and curiosity at home, sail through. Children who haven't begin to struggle, even if their decoding is perfect. And here is the uncomfortable part. The gap tends to widen rather than close. The children who understand more read more, and reading more teaches them more still.
There is even a rough threshold. Studies of vocabulary suggest a reader needs to know around 95 to 98 per cent of the words in a text to follow it comfortably. Drop below that and the meaning starts to fall apart. A child missing one word in twenty isn't lazy. They are trying to build a picture with too many pieces gone.
Why this changed what schools teach
This research has slowly reshaped how curriculums are built. The American writer E.D. Hirsch spent decades arguing that stripping content out of schools to make room for skills practice was a mistake, because there is no such thing as reading skill floating free of knowledge. His ideas influenced the shift in England towards what is now called a knowledge-rich curriculum.The journalist Natalie Wexler made a similar case in her 2019 book The Knowledge Gap. She described classrooms spending endless time on comprehension exercises while teaching very little actual history, science or geography, then wondering why comprehension didn't improve.
The evidence has started to back this up. A 2023 study of children in Colorado charter schools, which taught a deliberately content-heavy curriculum from the early years, found they went on to score noticeably higher not just in reading but in science and social studies too. England, having pushed both phonics and a broader knowledge base, placed among the strongest countries in the world in the most recent international reading tests for nine and ten year olds.
None of this means strategy lessons are worthless. A little goes a long way. But a little is all it takes. The heavy lifting is done by everything a child knows before they open the book.
What it looks like at home
The surprising takeaway for parents is that the best thing you can do for your child's reading might not look like reading at all.The trip to the museum. The documentary about deep-sea creatures. The rambling dinner conversation about why the sky goes red at sunset. The questions you actually answer instead of brushing off. All of it is quietly stocking the shelves your child will one day reach for when a paragraph gets hard.
Breadth matters more than we tend to think. A child who has heard a bit about rivers, empires, machines, weather and the human body has a hook waiting for each of those subjects when it turns up on the page. A child who hasn't has to build the whole thing from scratch, mid-sentence, while also trying to read.
So the next time reading comprehension feels like a chore to be drilled, it might help to remember the children who knew baseball. What they had wasn't a technique. It was a head full of the world. And that, more than any worksheet, is what turns words into meaning.
Sources & Further Reading