Classroom activity · Cut-and-paste sorting activities

Prefix Sort: un- or re-?

Unlock, unfair, reread and refill: sort twelve words by prefix and learn what un- and re- mean.

Share:
Grade level
Grades 2–3
Time
About 20 minutes
Answer key
Yes, page 2 of the PDF
Kids practice
Classifying, Fine motor skills, Explaining reasoning

What kids do

“Cut out the words. Look at the prefix at the start of each word. Glue it under un- or re-.”

Words on this sheet

unlockreplayreuserewriteunsaferereadunhappyunpackunfairrefilluntieredo

Teacher tip

Show what un- and re- mean with a word like do: undo and redo.

How to use it

  • Keep scissors and glue sticks in a bin at each table.
  • Read the cards aloud for kids who need help.
  • Let kids work with a partner so they talk through their thinking.

Watch for

Cutting that takes up the whole time. Pre-cut cards for kids who need it.

Talk about it

  • Can you think of one more thing for each group?
  • What was the trickiest part? How did you get past it?

Take it further

Use the same cards as a center game without glue.

US Letter, prints well in black and white. Free for home and classroom use: print as many copies as you need.

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