If you ask a subject leader what evidence they have for how their subject is going, most will give you a confident answer. But the answers vary enormously.
Lesson observations. Book scrutinies. Data. Pupil voice.
A folder. A memory of a conversation they had in September.
All of those things can be evidence. The question is whether they add up to a clear picture and whether that picture is clear enough to act on.
Good subject leadership evidence is not about ticking boxes. It is about being able to answer some fairly simple questions about your subject: Is it being taught consistently across the school? Are children making connections and building on prior learning? Where are the strengths, and where are the gaps?
Evidence that cannot help you answer those questions is not really doing its job, even if there is a lot of it.
Pupil conversations are consistently one of the most useful sources. Ofsted inspectors often spend time talking to pupils and for good reason. Children will tell you things that do not show up anywhere else: what they remember, what they found hard, what they enjoyed, whether they can make connections between different things they have learned. A well-structured pupil discussion, even with a small group, can tell you a lot about curriculum impact.
Lesson visits are useful but limited if they are the only thing. A single visit tells you about one moment in one classroom. A series of brief visits across different year groups and teachers, over time, gives you something much more useful: patterns.That’s where the insight usually sits. Subject leaders who visit regularly, even informally, tend to have a more accurate sense of their subject than those who do one formal observation per year.
Classroom evidence captured in the moment has become increasingly valuable. A photograph of work on a board, a short video clip of children engaged in discussion, a quick note about something a teacher mentioned. These things build up over time into a picture that is often richer and more honest than a formal review.
The Education Endowment Foundation makes a similar point in its guidance on implementation and evaluation: effective monitoring involves looking at multiple sources of evidence and triangulating across them, rather than relying on any single indicator. That principle applies as much to subject monitoring as to any other area of school improvement.
Evidence that exists only to show it exists. A folder full of observation forms that nobody reads is a cost, not an asset. If evidence does not inform decisions, it probably does not need to be there.
Evidence that is only collected at the end of the year. Retrospective evidence-gathering puts subject leaders in the position of having to reconstruct a picture they could have been building all along.
Evidence that only captures the formal curriculum. Some of the most useful moments happen outside scheduled observation periods. Evidence that can only be gathered in a planned visit will miss a lot of what is actually happening.
The aim is a portfolio of evidence that builds naturally through the year, not a system you have to maintain on top of everything else. Something that fits into what you already do. When monitoring becomes a continuous habit rather than a periodic event, the evidence tends to be richer, more representative, and much easier to use when you actually need it.
That is what Blippit Boards is designed to support: not just the storage of evidence, but the ongoing process of building a picture of your subject that you can actually use.
