Walk into almost any school and you’ll hear the same phrase:
“The data looks good.”
And often, it does.
Assessment scores are improving. Predicted grades are rising. Progress measures look positive. Intervention trackers are full of green boxes. On paper, everything appears to be moving in the right direction.
But sometimes the books tell a different story.
As a Head of Department, I’ve increasingly found myself looking beyond the spreadsheets and back towards the exercise books sitting on students’ desks.
Because while data can tell us what students achieved on a particular assessment, it doesn’t always tell us how secure their learning really is.
And for disadvantaged students, that distinction matters enormously.
The Comfort of Good Data
Schools need data. Without it, we are simply guessing.
Data helps us identify students who need support. It helps us spot trends. It helps us evaluate whether strategies are having an impact. The problem begins when data becomes the primary lens through which we judge learning. Because data is often measuring performance. Learning is something much harder to see.
A student might score well on an assessment because they have revised effectively.
They might remember information from a recent lesson. They might have been heavily scaffolded during the learning process.
None of those things are necessarily bad.
But they don’t always tell us whether knowledge has been retained, whether understanding is secure or whether students can apply that knowledge independently.
What the Books Reveal
I have lost count of the number of times I have looked at encouraging assessment data before opening books and finding something that made me pause.
Extended answers that lack depth. Vocabulary used incorrectly. Knowledge that appears secure one week and forgotten the next.
Students who can answer questions verbally but struggle to communicate their thinking through writing.
On the surface, progress appears positive. Underneath, the foundations remain fragile.
This is particularly important when working with disadvantaged students.
Many become highly skilled at navigating school systems. They know how to complete tasks. They know how to participate in lessons. They know how to follow routines. But compliance is not the same as learning.
Busy students are not necessarily learning students. And completed work is not always evidence of secure understanding.
The Danger of Measuring the Wrong Thing
One of the biggest lessons I have learned is that schools can become very good at measuring activity.
We can measure attendance at revision sessions. We can measure intervention participation. We can measure homework completion. We can measure assessment outcomes.
What is much harder to measure is whether students genuinely understand the curriculum.
Whether they can retain knowledge over time. Whether they can write independently. Whether they can apply learning in unfamiliar situations.
These are often the things that matter most, yet they are the things least visible within a spreadsheet. As a result, there is always a temptation to focus on what is easiest to measure rather than what is most important.
Why This Matters for Disadvantaged Students
Disadvantaged students are often the first to expose the weaknesses in our systems.
A student with strong literacy skills, extensive parental support or access to tutoring can sometimes overcome inconsistencies in teaching. Many disadvantaged students cannot.
When vocabulary gaps exist, they feel them first. When writing instruction is unclear, they feel it first. When curriculum access is inconsistent, they feel it first.
This is why I have become increasingly convinced that closing the gap is not primarily about intervention. It is about ensuring students can access the curriculum successfully every single day.
And that requires us to look beyond the data.
Looking Beyond the Spreadsheet
When I review outcomes now, I still look at the data. But I also ask different questions.
– Can students explain their thinking independently?
– Can they write effectively without extensive scaffolding?
– Are they retaining knowledge from previous units?
– Are they using subject-specific vocabulary accurately?
– Do their books show evidence of genuine improvement over time?
Because ultimately, the books often tell us things the data cannot.
They reveal misconceptions. They reveal literacy barriers. They reveal whether students are becoming more independent. They reveal whether learning is actually taking place.
Final Reflection
Data matters.
But data is a tool, not the destination.
The danger comes when we start believing that improving numbers automatically means improving learning. Sometimes the data says students are doing fine. Sometimes the books tell a different story. And if we want to improve outcomes for disadvantaged students, we need to pay attention to both. Because learning is not found in a spreadsheet. It is found in what students know, remember and can do independently when the support is gone.
And that is often easiest to see when we simply open the books.
© Teachers’ Lyceum 2026.