Older pupils may know the meaning of a concept but struggle to decode, pronounce or spell the word used to express it. Short cumulative work with syllables, roots, prefixes and suffixes can make complex subject vocabulary more manageable without making support feel like an early-years phonics lesson.

The aim is to help pupils recognise useful word parts and apply that knowledge across subjects, without teaching long lists of terminology.

Select vocabulary from current learning

Choose a small number of words pupils need in the next lesson or unit. Start with word parts they have already met, then add one new pattern or element.

For example, a science teacher preparing the words photosynthesis, photoreceptor and photograph could draw attention to photo, meaning light, before pupils meet the words in context. A history teacher might connect monarchy, monarch and monarchical. The point is to link pronunciation, spelling and meaning, not to turn every subject lesson into a separate literacy course.

Prioritise words that are:

• essential for understanding the topic;

• difficult to decode or pronounce;

• built from reusable roots or affixes;

• likely to appear again in reading or written work.

Use a brief cumulative routine

A short routine can be completed, for example, in English or literacy-support time, or before or during a subject lesson:

1. Say the word. Give a clear model of the pronunciation.

2. Mark the spoken parts. Clap, tap or underline the syllables.

3. Identify a useful word part. Highlight a root, prefix, suffix or spelling pattern.

4. Connect form and meaning. Explain how the word part contributes to the meaning.

5. Use the word. Read it in a sentence, then ask pupils to say or write a sentence of their own.

Revisit previously taught word parts alongside one new example. For instance, after teaching bio in biology, biodegradable and biodiversity, return to it briefly when biography appears in another subject.

Build retrieval into normal lessons

Revisit words through quick, purposeful checks rather than copying large lists. Pupils might:

• match roots or affixes to meanings;

• complete a partially segmented word;

• sort words into related families;

• pronounce three previously taught terms;

• explain how a prefix changes a word’s meaning;

• retrieve the spelling of one key term before extended writing.

Keep successful examples visible in a subject glossary or knowledge organiser, but ask pupils to retrieve the word before checking it.

Preserve age and subject relevance

Use the vocabulary of the curriculum and explain why the analysis is useful. Avoid childish materials, unnecessary games or generic word lists that bear no relation to the pupil’s lessons.

A pupil who still has substantial decoding difficulties may need a separate, age-appropriate literacy intervention. Classroom word analysis can improve access to current teaching, but it should not be presented as a complete response to a persistent reading difficulty.

Notice what the pupil can transfer

Look for whether pupils can use the same word part in a new word. A simple record might note whether the pupil can:

• pronounce the taught word;

• explain a useful root or affix;

• read another word containing that element;

• spell the important section accurately;

• retain the knowledge in a later lesson.

If learning remains tied to one memorised word, provide another example and model the connection explicitly.

Common mistakes to avoid

• Pre-teaching too many words at once.

• Giving a definition without helping pupils pronounce and analyse the word.

• Focusing on word origins that are interesting but not useful for the lesson.

• Assuming that recognising a word part guarantees understanding of the whole word.

• Using classroom vocabulary work instead of arranging targeted literacy support where decoding remains substantially weak.

Evidence and further reading

The Education Endowment Foundation’s Improving Literacy in Secondary Schools recommends explicit attention to disciplinary literacy and vocabulary across subjects. A recent systematic review and meta-analysis of morphological interventions examines the effects of teaching meaningful word parts on literacy outcomes. Its studies were with primary-aged pupils, so treat it as indirect evidence for Secondary.