Free interactive practice
Play Word Detective
Sort carefully chosen words by syllable count and decide whether un- is acting as a prefix. Saving is off unless you choose it.
Practise part of this topic: say and clap displayed words to notice syllable beats, or recognise when un- is a real prefix. Ask an adult to confirm spoken responses; the game does not assess accurate oral reading.
Year 1 · English
Use The Prefix Un
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Focus on prefix un meaning not. Open support for “Understand and Spell Words with the Prefix un-”, then explain the idea in your own words.
Year 1 learners practise prefix un meaning not.
The activities include Understand and Spell Words with the Prefix un-. The checked support below includes teaching, worksheet, teaching-practice, video. Open a resource in its provider's website and choose the format that best helps the learner explain the idea independently.
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Build words with un- and endings
Build un- meanings and words with -ing, -ed, -er and -est while keeping the root unchanged. The final short-vowel-doubling task is explicitly a TheLearnDen site extension, not the statutory unchanged-root rule. Supported fixed-word practice, not independent spelling fluency or whole-topic completion.
7 pages · answers and adult guidance · selected skills, not the whole topic
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Watch it explained
watch a video explanation
Spelling Zone prefixes un- dis- in-
Best for: a clear explanation before you practise
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Learn it properly
lessons and teaching pages
KS1 Prefixes and Suffixes
Best for: worked examples and step-by-step teaching
PlanIt English Y1 Term 3B W2: The Prefix un- Spelling Pack
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Practise it
questions and activities to try
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Print and finish
worksheets away from the screen
PlanIt Y1: The Prefix un-
Best for: pencil-and-paper practice away from the screen
Year 1 Prefixes and Suffixes Word Wheels
Best for: pencil-and-paper practice away from the screen
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