Thirty boards go up. You scan the room. Most of them look about right, a few pupils haven’t written anything, and you move on.
It feels like a successful check for understanding. Everyone has participated, you’ve seen thirty responses, and the lesson hasn’t lost momentum.
But what have you actually learned?
A board held up is evidence that a pupil has produced an answer. It isn’t necessarily evidence that they understand it. Those two things can look remarkably similar from the front of a classroom.
I’ve used mini-whiteboards extensively in my own teaching and encouraged their use through CPD and instructional coaching. They’re one of the quickest ways to get a response from every pupil. But their value depends on something we sometimes overlook: what happens after the boards go up.
Performance is not learning
The distinction between getting an answer right and genuinely learning something is more important than it might first appear.
Soderstrom and Bjork (2015) distinguish between performance, which we can observe during instruction, and learning, which involves more durable changes in knowledge and understanding.
A pupil might answer correctly because they’ve just watched a worked example, remembered something the teacher said thirty seconds earlier or recognised a familiar question. That’s useful evidence of what they can do at that moment, but it doesn’t guarantee they’ll remember the knowledge next week or apply it to an unfamiliar problem.
Mini-whiteboards are excellent at making pupils’ immediate responses visible. They cannot, on their own, establish long-term learning.
That doesn’t make them a poor teaching technique. It means we need to be clear about what we’re using them for.
I want to know whether pupils are following my explanation, which misconceptions are emerging and whether I should move on, revisit something or provide another example.
A mini-whiteboard can help me make those decisions. It cannot make them for me.
The evidence isn’t as straightforward as we sometimes suggest
Formative assessment has a substantial research history.
Black and Wiliam’s influential 1998 review highlighted the potential of formative assessment to improve learning. Their work helped establish checking for understanding as an important feature of effective classroom practice.
However, we should be careful about presenting formative assessment as a single intervention with a predictable effect size.
Kingston and Nash (2011) reviewed more than 300 potentially relevant studies, but found that only 13 provided sufficient information for their meta-analysis. They reported a weighted mean effect size of 0.20, considerably lower than some of the larger figures commonly associated with formative assessment.
Their analysis also suggested variation between subjects, although those estimates need to be treated cautiously. Briggs and colleagues (2012) subsequently challenged aspects of their methodology, including study selection and the calculation of effect sizes.
Crucially, these studies examined formative assessment more broadly. They weren’t investigations into whether teachers should use mini-whiteboards.
For me, the practical point is that we should stop treating the presence of a technique as proof that formative assessment is happening.
Thirty boards in the air might look impressive during a learning walk. What matters is whether the responses actually inform what happens next.
Two ways the routine goes wrong
There are two problems I’ve encountered in my own teaching and in the lessons I’ve observed.
1. Asking questions that are difficult to scan
Imagine asking a Year 10 science class to explain why increasing temperature increases the rate of a chemical reaction.
It’s an important question. It’s also asking pupils to construct a scientific explanation involving kinetic energy, collisions and activation energy.
Thirty pupils begin squeezing their answers onto small whiteboards. Some write a sentence, others draw diagrams and a few manage half an explanation before the countdown ends.
The boards go up.
How many can you meaningfully read before pupils’ arms start dropping?
The problem isn’t the question. It’s the mismatch between the question and the medium.
Mini-whiteboards are particularly useful when responses are short enough to compare quickly. A number, a keyword, a label, an equation or a carefully designed multiple-choice response can reveal a great deal.
Longer explanations often belong in books or in a structured discussion, where pupils have enough space and time to develop their reasoning.
2. Treating participation as understanding
The second problem is more subtle.
You ask a question. Everyone writes something. The boards go up and most answers are correct.
You praise the class and continue.
But perhaps several pupils copied the worked example. Perhaps some recognised the answer without understanding why it was correct. Perhaps others made the same error, but you didn’t notice because you were scanning too quickly.
Getting every pupil to respond is valuable. But participation and understanding aren’t interchangeable.
The purpose of mini-whiteboards isn’t simply to make thinking visible. It’s to gather evidence that helps us respond more intelligently.
A routine worth rehearsing
The routine I use has seven stages. Each serves a purpose, and consistency makes the whole process more efficient.
1. Boards out
Pupils have their boards, pens and erasers ready. Equipment shouldn’t become a distraction every time you want to check understanding.
2. Empty hands
Secure attention before giving the instructions. Pupils should be listening rather than writing while the question is being introduced.
3. Frontload expectations
Explain the response format before pupils begin. Are you looking for a number, a keyword, an equation or a letter? Make the routine and expected format clear without revealing the answer.
4. Set the question
Choose a question that gives you useful information. Ideally, different answers should help reveal different misconceptions.
5. Count and hover
Allow appropriate thinking time, then give pupils a clear countdown. They keep their boards down until your signal.
The amount of time depends on the question. A simple recall question might need only a few seconds. A calculation or unfamiliar problem will need longer. If the task requires extended reasoning, consider whether mini-whiteboards are the right medium.
6. Show me
Every pupil reveals their answer at the same time. Scan systematically rather than simply looking for a general impression that most pupils have got it right.
7. Process questions
Select pupils to explain how they arrived at their answers. Ask about their methods, reasoning and any misconceptions you’ve noticed.
The final stage is particularly important. It’s also where the mini-whiteboard routine becomes more than a quick participation exercise.
What happens after the boards go up?
This is the part that earns its keep.
Imagine you’re teaching rates of reaction and ask:
What happens to the average kinetic energy of particles when temperature increases?
Nearly every pupil writes increases.
That’s encouraging, but you still need to establish whether they understand the relationship between temperature and reaction rate.
You might follow up with:
Why does that increase the rate of reaction?
Or:
Does increasing temperature mean every collision will result in a reaction? Explain your answer.
Now you have an opportunity to uncover differences in pupils’ reasoning that their original one-word responses couldn’t reveal.
This is an illustrative example, but the principle applies across subjects. Two pupils can arrive at the same correct answer through very different thought processes.
Equally, you shouldn’t rely on asking one pupil to explain their thinking and assume everyone else understands. Their explanation gives you additional information, not proof of whole-class understanding.
Letting the responses change your next move
The responses across the class should influence your next move.
If almost everyone makes the same mistake, I may need to revisit my explanation or model another example.
If the class is split between two answers, I might select both and ask pupils to discuss the reasoning behind them.
If nearly everyone is correct, I can probe understanding with a more demanding question before moving on.
And if pupils appear confident during the lesson, I can revisit the knowledge later through retrieval or an unfamiliar application to find out what they’ve retained.
This is what makes a check genuinely formative. The information changes what I do next.
One thing to try tomorrow
Choose one point in your next lesson where you would normally ask pupils to show you their answers.
Before the lesson, decide what each likely response will tell you. What misconception might an incorrect answer reveal? What will you do if half the class chooses it? What question could you ask a pupil whose answer is correct?
Keep the initial response short enough to scan, make sure everyone shows their board at the same time, and plan one follow-up question that probes the reasoning.
Then act on what you’ve seen.
You don’t need more elaborate resources or a completely new routine. You need a purposeful question and a clear idea of what you’ll do with the information it produces.
Mini-whiteboards can tell us a great deal about what pupils can do in the moment. Whether that information becomes useful depends on the decisions we make afterwards.
The boards tell you what pupils have written. What you ask, and what you do next, helps you understand what they actually know.
References
Black, P. and Wiliam, D. (1998) ‘Assessment and classroom learning’, Assessment in Education: Principles, Policy & Practice, 5(1), pp. 7–74. https://doi.org/10.1080/0969595980050102
Briggs, D.C., Ruiz-Primo, M.A., Furtak, E., Shepard, L. and Yin, Y. (2012) ‘Meta-analytic methodology and inferences about the efficacy of formative assessment’, Educational Measurement: Issues and Practice, 31(4), pp. 13–17. https://doi.org/10.1111/j.1745-3992.2012.00251.x
Kingston, N. and Nash, B. (2011) ‘Formative assessment: A meta-analysis and a call for research’, Educational Measurement: Issues and Practice, 30(4), pp. 28–37. https://doi.org/10.1111/j.1745-3992.2011.00220.x
Soderstrom, N.C. and Bjork, R.A. (2015) ‘Learning versus performance: An integrative review’, Perspectives on Psychological Science, 10(2), pp. 176–199. https://doi.org/10.1177/1745691615569000