Prefix and Suffix Clues
Learners use an affix clue and sentence context to predict a new word, then check the meaning.
Worked classroom example
Science
Use re-, un- and -able to explore reuse, unstable and soluble.
Use this example to make the language move visible. Select subject content appropriate to the class’s age and prior knowledge.
Teaching sequence
- Select three related words with a visible affix.
- Learners identify the shared part and predict what it contributes.
- Apply the clue to a new word and verify it in a source or glossary.
Materials and purpose
a short list of words with a shared prefix or suffix
Word parts give readers a useful route to unfamiliar vocabulary.
Try it in your next lesson
Prepare
Use a short list of words with a shared prefix or suffix. Choose a second example that checks the same language move without repeating the original answer.
Classroom task
Learners use an affix clue and sentence context to predict a new word, then check the meaning.
Check independent transfer
Apply the clue to a new word and verify it in a source or glossary.
Collect a response on fresh content. Note what was achieved without the model, partner or teacher prompt, then choose one next teaching step.
Teacher language
Teacher language
Which part of the word gave you a clue?
“Which feature makes this an example of the word?”
“How does the meaning or useful phrase change in another context?”
Respond to the learner
Identify one successful meaning or language choice. Ask about one gap, allow thinking time, then invite a revision. Check the revised move again on a fresh example.
Adjust support and challenge
Offer a brief model, useful vocabulary and partner rehearsal where needed. Keep the subject goal; reduce one prompt on fresh content and record what was independent.
Teaching this skill → · Age and language support →
More support
Use an image, object, bilingual gloss and contrasting example. Retrieve the word in a new sentence rather than repeat a definition only. Allow familiar-language notes or another response mode when checking subject understanding.
Greater independence
Change the content, evidence or audience. Remove the completed model and ask learners to explain a choice. Increase subject complexity only when it fits the curriculum and prior knowledge.
Choose the next step
If subject meaning is insecure, reteach the concept. If the concept is understood but the English is unclear, model one useful language relationship and invite a fresh response.