Flip the Meaning: Common Prefixes Un-, Re-, Dis- for Class 6

This Grade 6 worksheet helps students explore how the prefixes un-, re-, and dis- change the meaning of base words in clear and predictable ways. Through five structured activities — match the following, sort the words, fill in the blanks, multiple choice questions, and sentence rewriting — learners practise attaching prefixes correctly to words like happy, agree, lock, write, fair, cover, and more to build words such as unhappy, disagree, unlock, rewrite, unfair, and discover.

Why Prefixes Matter in Grammar?

Prefixes are building blocks of the English language. For Grade 6 learners, this topic is important because:
1. Prefixes like un-, re-, and dis- change or reverse the meaning of a base word.
2. They help students decode unfamiliar words quickly during reading.
3. Using prefixes correctly improves precision and clarity in writing.
4. They appear in academic vocabulary, reading passages, and grammar assessments.

What's Inside This Worksheet?

This worksheet includes five grammar-rich activities that build fluency with the prefixes un-, re-, and dis-:

Exercise 1 – Match the Following
Students match each prefix on the left (un-, re-, dis-) to its most suitable base word on the right. Pairs covered include un-+happy, re-+write, dis-+honest, un-+fair, re-+play, dis-+agree, un-+kind, re-+cover, dis-+lock, un-+visit.

Exercise 2 – Sort the Words
Students sort fifteen base words into two prefix categories — Prefix un- and Prefix re-. Words like tie, fair, safe, write, open, check, build, and lock are sorted appropriately.

Exercise 3 – Fill in the Blanks
Students choose the correct prefix from a pair (re-/un-, dis-/re-, etc.) to complete the word in each sentence. Example: ""Anjali decided to __________write her messy essay again."" (re- / un-)

Exercise 4 – Multiple Choice Questions
Students select the correct prefix-based word from four options to complete each sentence. Example: ""She was __________ with the marks."" (unfair / unkind / unhappy / unsafe)

Exercise 5 – Sentence Rewriting
Students rewrite each sentence by replacing the incorrect prefixed word with the correct one. Example: ""Anjali said the homework was not clear and very rewrite"" becomes ""Anjali said the homework was not clear and very unclear.""

Answer Key (For Parents & Educators)

Exercise 1 – Match the Following
un- → happy
re- → write
dis- → honest
un- → fair
re- → play
dis- → agree
un- → kind
re- → cover
dis- → lock
un- → visit

Exercise 2 – Sort the Words
Prefix un-: tie, fair, safe, seen, well, true, kind, lock
Prefix re-: build, made, play, paint, write, open, check

Exercise 3 – Fill in the Blanks
1. re-
2. un-
3. re-
4. dis-
5. un-
6. dis-
7. re-
8. un-
9. re-
10. re-

Exercise 4 – Multiple Choice Questions
1. c) unhappy
2. b) unkind
3. a) unsafe
4. c) unfit
5. a) rewind
6. d) rewind
7. b) disagree
8. a) connect
9. d) rebuild
10. c) untie

Exercise 5 – Sentence Rewriting
1. Anjali said the homework was not clear and very unclear.
2. Rahul chose to unlock the locked box of craft supplies.
3. Diya thought it was unfair that only boys got extra time.
4. Pooja decided to redo her old project from the beginning.
5. Arjun wanted to unpack the cricket match scores carefully.
6. Neha said she would recheck her answer sheet one more time.
7. Kartik felt that the task given to him was too easy.
8. Aarav told Rohan he would disagree with a redo of the plan.
9. Anjali asked if she could rewrap the gift for the contest.
10. Rohan said it was unkind to take his friend's pencil box.

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