The Prefix un-
Your child can add un- to a word to make its opposite. They can spell unhappy, unfair and undo correctly.
In curriculum terms
Spell words using the prefix un- to change meaning; understand that un- creates opposites or reverses actions
Ages are typical, not deadlines — follow your child’s pace. How to help at home →
How to tell they’ve got it
Tick these off as you see them — no test required.
🖨 Print this page to keep the checklist — it prints beautifully.
Try this together
Does your child know that adding "un-" to the front of a word like "happy" or "lock" flips its meaning, and can they spell those words correctly?
Where this sits on the map
Stuck here? Check the skills it builds on first. Confident? Here’s what it unlocks.
solid = must come firstdashed = helps
Curriculum alignment
Where this fits in the official school curriculum — our best automated guess, not yet checked by a person.
This skill sits outside the F–6 Australian Curriculum — no candidate code matched (v0.1). No NSW K–6 outcome code matched (v0.1). No Victorian Curriculum 2.0 code matched (v0.1).