Chunking converts a lengthy explanation into a small number of visible, checkable stages. It is particularly useful when pupils must coordinate subject knowledge, resources, time and several task requirements.

Plan the sequence

Identify the main stages before the lesson. Use concise action-led wording and keep the sequence visible.

For an extended response:

1. Decide the overall judgement.

2. Select evidence for the first paragraph.

3. Explain how the evidence supports the judgement.

4. Check the paragraph against the question.

For a practical investigation:

1. Set up and check the equipment.

2. Run the first trial.

3. Record the result.

4. Repeat and compare.

A sequence should be short enough to scan. If it needs a page of explanation, separate the stages or use a model.

Teach pupils to manage the sequence

Ask the pupil to identify the first stage and mark it when complete. If they lose their place, prompt them to consult the sequence. A mini whiteboard, task card or section of the main worksheet can work; the important feature is that it remains easy to find.

Check whether the pupil understands the subject content as well as the order. Chunking cannot compensate for missing knowledge or unfamiliar vocabulary.

Combine written stages with modelling

For a new or demanding process, model the first stage and verbalise the decision being made. Keep the worked example available while the pupil attempts a related task. Written steps tell pupils where they are; modelling shows what successful thinking and work look like.

Reduce detail deliberately

As the pupil gains independence:

• shorten sentences to headings;

• remove familiar stages;

• ask them to write the sequence before starting;

• keep only the success criteria or final check;

• reserve the scaffold for the most complex work.

Do not remove the sequence simply because the pupil completed one task successfully. Look for reliable use across similar tasks.

Common mistakes to avoid

• Producing too many tiny steps.

• Giving spoken instructions that do not match the written sequence.

• Treating the checklist as a substitute for subject explanation.

• Completing the decisions for the pupil.

• Leaving a full scaffold in place when a shorter prompt would be enough.

Further reading

• Classroom practice: manageable and sequential instructions (Department for Education)

• Classroom practice: worked examples (Department for Education)