Prefixes worksheets
Third graders use prefixes as meaning clues: if tie becomes untie and read becomes reread, an unfamiliar word like miscount can be reasoned out instead of skipped. This grade adds pairs where more than one prefix makes a real word and context settles it.
By grade
What students need to know
A prefix is glued to the front of a word and changes its meaning: un- flips lock into unlock.
This skill runs from 2nd grade through 4th grade. Pick a grade above for level-matched sentences, teaching notes, and worksheets.
Prefixes across the grades
2nd grade
A prefix is a word part attached to the front of a base word that changes what it means. Second graders work with the heavy hitters: un- (not), re- (again), dis- (opposite of), mis- (wrongly), and pre- (before).
3rd grade
Third graders use prefixes as meaning clues: if tie becomes untie and read becomes reread, an unfamiliar word like miscount can be reasoned out instead of skipped. This grade adds pairs where more than one prefix makes a real word and context settles it.
4th grade
By 4th grade the set expands to non-, over-, under-, in-, and im-, and the bases get longer: incomplete, overestimate, indecipherable. The skill matures from memorizing prefixes to weighing which one the sentence actually needs.
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