How can vocabulary teaching improve reading comprehension?

Knowing a definition by heart is not enough if the pupil cannot recognise the word in a new context. Plan teaching for understanding and application, with opportunities to revisit words beyond the first lesson.

Choose words for their contribution

Select a manageable number of words that are central to the text or useful across subjects. Include important everyday academic words such as “contrast” or “consequence”, not only technical nouns. Ask whether a pupil could understand the main message without the word; this helps prioritise teaching time.

Distinguish a word that is new from a familiar word used differently. “Volume” in a maths text and in a discussion of sound needs careful explanation. Pupils learning English may know the concept in another language, so check that before assuming missing understanding.

Build a usable meaning

Give a clear explanation, pronounce the word and place it in the text's sentence. Use an example and a non-example where helpful. For “fragile”, contrast an easily broken glass object with a robust plastic one and discuss why a soft material is not automatically fragile.

Invite pupils to explain the meaning, choose which example fits or create a sentence that shows it. Correct misconceptions explicitly. A dictionary definition can support this work, but copying one is not the whole teaching process.

Example: teaching a word across subjects

The teacher introduces “consequence” during a story, linking an action to what follows. Pupils later use it when discussing a historical decision and a science investigation. The teacher checks the relationship in each context, rather than accepting any sentence that contains the word. This creates varied practice in applying its meaning.

Use word structure where it helps

Explore meaningful prefixes, suffixes and base words when they clarify a new term. Explain limitations: familiar letter sequences do not always function as the same meaningful part. Word structure should support a checked interpretation of the sentence, not a speculative definition.

Revisit and evaluate

Return to selected words after a gap through discussion, a new text or retrieval with feedback. Look for accurate interpretation and flexible use, not just recognition on a display. If a pupil continues to misunderstand a passage, inspect sentence structure, background knowledge and word reading as well. Vocabulary teaching contributes to comprehension but does not explain every difficulty.