Retrieval Is Not a Starter Activity

Like many ideas in education, retrieval practice has suffered the peculiar fate of being simultaneously overused and underthought.

Over the past decade or so, retrieval practice has become one of the most frequently discussed concepts in schools. Walk into enough classrooms and you will find the now familiar ritual. Pupils enter. A handful of questions appear on the board. They answer them silently. The teacher reviews the answers. The lesson begins.

The justification is that research tells us retrieving information from long-term memory strengthens learning. Therefore, we need a mechanism for ensuring pupils regularly retrieve information from long-term memory.

As far as it goes, this is true.

The problem is that educational ideas rarely remain in their original form. They are translated into routines. The routine then becomes the thing. Over time, the good intent is forgotten and only the ritual remains.

Retrieval practice has become one such ritual. Another example of education mistaking a technique for a theory.

This is unfortunate because the underlying research is extensive and important. Retrieving information from memory does improve learning. The testing effect is one of the most robust findings in cognitive psychology. Knowledge that is recalled is generally retained more effectively than knowledge that is merely reread or revisited passively.

None of this should be controversial. But there is an important difference between accepting the value of retrieval and accepting the way retrieval is often implemented in schools.

The question is not whether retrieval works (hint: it does), the question is how retrieval should be woven into the architecture of learning.

Too often, retrieval is treated as though it exists independently of the lesson itself. It is something that happens before the lesson begins. Five minutes of retrieval. Then the real learning starts.

Framing retrieval like this is curious because it creates a false separation between remembering and learning. The implication is that retrieval is a distinct activity, detached from the development of new knowledge and understanding.

For decades, I have watched expert teachers do something different.

When we think carefully about the lessons we remember most vividly, they are not those presented as collections of disconnected activities. Rather, they are those conveyed as stories. As one idea naturally leads to another, questions spontaneously emerge, problems arise, and tensions are created and resolved. The new knowledge grows from the continuity of old knowledge.

In a well-designed lesson, previous learning is not retrieved because the teacher has decided it is time to retrieve it. Previous learning is retrieved because the unfolding story of the idea at hand demands it.

Imagine, for example, a lesson introducing trigonometry. Today, commonly, the teacher might begin with a retrieval starter consisting of questions about ratios, triangles and area. The teacher knows these ideas will be needed later and therefore asks pupils to retrieve them in advance.

There is nothing inherently wrong with this. The pupils will almost certainly benefit from the retrieval.

But there is another possibility.

The lesson could begin by anchoring the new idea and creating anticipation with narrative, then introducing a new problem. As pupils work through the problem, they discover that the methods being discussed today are insufficient. They reach a point where prior knowledge becomes necessary. Suddenly, they need to remember ratios. Later, they need to think about area. At another point, they need to recall properties of triangles.

The retrieval still happens. But now it happens in the body of content of the lesson. This is a more powerful place for it to reside.

The retrieval now serves the idea rather than the lesson structure.

This distinction matters because learning is not simply a matter of remembering facts. Expertise requires something more sophisticated. It requires recognising when knowledge is relevant and selecting appropriate methods from a repertoire of possibilities.

One of the defining characteristics of expertise is not simply knowing more, but knowing what to do with what you know.

I have long advocated for the benefits of ‘method selection’, which is often overlooked in discussions of retrieval.

When pupils are told at the start of a lesson exactly which prior knowledge they will need, we make retrieval easier. We provide cues. We reduce uncertainty.

This increases the likelihood of successful recall. It also creates the comforting appearance of learning. But education should concern itself with the development of expertise rather than the performance of compliance.

If the pupil no longer has to ask themselves which previous ideas might be useful to a problem of the moment, they no longer have to search their memory. They no longer have to discriminate between relevant and irrelevant knowledge.

The teacher has already done that intellectual work on their behalf.

Of course, there are times when such support is entirely appropriate. Teaching novices requires careful scaffolding. But there is a profound difference between helping pupils think and removing the need to think.

Expert teachers understand this intuitively.

Their intellectual preparation for teaching goes beyond the preparation of explanations and examples. Expert teachers design experiences. They think carefully about where pupils will encounter difficulty. They anticipate misconceptions. They identify moments when previous knowledge should become useful. They engineer situations that compel retrieval and method selection.

They do not think of retrieval and the enormous benefits of the testing effect as a bolt on to the lesson. They embed it within the lesson.

This approach has other advantages too.

The beginning of a lesson is a uniquely precious moment. Pupils have often just arrived from another subject, another classroom or a break. Their attention has been reset. There is an opportunity to establish direction and purpose. There is an opportunity to connect today’s learning to yesterday’s learning and to continue the narrative thread of the curriculum.

Lesson time is finite and expert teachers think carefully about opportunity cost. Every minute devoted to one activity is a minute unavailable for another.

There is another cost too. The widespread adoption of retrieval starters has contributed to the homogenisation of classroom life. Pupils move from lesson to lesson encountering the same opening routine regardless of whether they are studying mathematics, history, science or literature. The subjects themselves may be profoundly different, but the experience of entering them has become remarkably similar. Consistent routines undoubtedly have value and can contribute to orderly classrooms. But we should be careful not to confuse the conditions for learning with learning itself. The opening moments of a lesson offer an opportunity to induct pupils into a discipline, to create curiosity, to continue a story, to pose a puzzle or reveal a mystery. If every lesson begins in exactly the same way, we risk sacrificing some of the very character that makes subjects worth studying in the first place.

This does not mean retrieval at the start of a lesson is ineffective. Far from it. Good retrieval is beneficial wherever it occurs.

The question is whether using a distinct and often disconnected activity at the beginning of the lesson is always the best place for it.

I am not convinced that it is.

There is great power in opening a lesson with the story itself. About reminding pupils where they left off. About posing a new challenge. About creating curiosity. About establishing continuity.

When retrieval is subsequently required within that story, it serves multiple purposes simultaneously. It strengthens memory. It reinforces connections. It develops method selection. It promotes schema activation. It helps pupils see how ideas relate to one another. And it feels natural.

Although my own subject of mathematics provides particularly clear examples of this principle, I suspect it applies across all hierarchical disciplines.

Historians retrieve prior knowledge of political systems when studying revolutions. Scientists retrieve previous models when encountering new phenomena. Musicians retrieve existing concepts while learning new compositions.

In every case, the expert teacher’s task is not simply to ensure that retrieval occurs, it is to ensure that retrieval occurs at moments when it is meaningful. I am not making an argument against retrieval starters. This is an argument that retrieval deserves to be considered as part of lesson design rather than merely lesson routine.

Retrieval practice remains one of the most important ideas to emerge from cognitive science and schools should continue to embrace it.

But perhaps the next stage of our understanding requires a little more intellectual ambition. Rather than asking how often pupils retrieve information, we might ask a more interesting question.

Retrieval is too important to be reduced to a starter activity. The challenge for expert teachers is not simply to ensure that pupils remember. It is to design experiences that require pupils to remember at precisely the moments when remembering matters.

How can retrieval become an integral part of the story of learning itself?