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Word Parts as Clues

Use knowledge of common inflections and affixes (-ed, -s, un-, -er) as clues to the meaning of unknown words; understand how the prefix un- changes meaning

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What a learner can do afterwards

  • Recognise that -ed signals past tense (e.g. 'jumped' = already happened)
  • Explain how un- makes a word mean the opposite (e.g. 'unhappy' = not happy)
  • Use word parts to figure out the meaning of an unfamiliar word

The lesson

Words have parts. Each part gives a clue. A part at the start or end can change the meaning.

jump-ed
The word jump plus -ed becomes jumped. -ed means it already happened.
Try it together

Mia read the word played. She saw -ed at the end. She knew it already happened.

un-kind
Un- plus kind becomes unkind. Un- means not, so unkind means not kind.
Good to know

When you see a new word, look at its start and end. Word parts can help you guess the meaning.

Word parts like -ed and un- give clues to a word's meaning.

Watch it

Where it sits

Where this leads

Jobs that lean on this skill. Follow one to see everything it is built on.

Then practise

8 questions wait behind this lesson, each with its answer explained. Every answer feeds the sky: stars light as they are learned, and dim when it is time to come back.

Word Parts as Clues · English, ages 5 to 8 · LightMySky