LESSON
21
name _____________________________________________ date ____________
Prefixes mis-, in-, sub-, un-, re
misbehave
indirect
subtitle
unfold
recount
mistrust
informal
subtotal
unequal
review
mis- means “badly”
in- and un- mean “not”
sub- means “under”
re- means “again”
The hamburgers are not the
same size, so they are unequal.
If you misbehave, you act badly.
If you mistrust someone, you doubt that person.
If something is indirect, it is roundabout. / You wear informal clothes for play.
A subtitle is below the main title. / A subtotal is not the whole total.
When you unfold something, you open it up.
Recount means “to count again.”
When you review something, you look at it once more.
A. Add a prefix to each word to form a vocabulary word. Use the
meaning in ( ) to help you.
1. (again) ________________ view
2. (under) ________________ total
3. (not)
4. (not)
________________ formal
5. (badly) ________________ behave
________________ equal
6. (under) ________________ title
B. Write a heading that tells how the words in each group are alike.
1. ____________
indirect
incorrect
insecure
2. ____________
3. ____________
4. ____________
misname
mistrust
miscast
unfair
unzip
unfold
recount
renew
redo
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240 Vocabular y Words Kids Need to Know: Grade 3 © 2012 by Linda Ward Beech, Scholastic Teaching Resources
❙
A prefix is a word part that is added to the beginning
of a word. A prefix changes the meaning of a word.
LESSON
21
name _____________________________________________ date ____________
Prefixes mis-, in-, sub-, un-, re
misbehave
indirect
subtitle
unfold
recount
mistrust
informal
subtotal
unequal
review
A. Use what you know. Write the best word to complete each sentence.
1. Our dog will _________________ if we don’t train him.
2. The _________________ light made it hard to read.
3. This magazine story has a long _________________ .
4. The jars had _________________ amounts of water.
5. The clerk made a mistake and had to _________________ my change.
6. Always _________________ the material before taking a test.
7. The Blakes had an _________________ party in their yard.
240 Vocabular y Words Kids Need to Know: Grade 3 © 2012 by Linda Ward Beech, Scholastic Teaching Resources
8. Gina had to _________________ the blanket before using it.
9. The _________________ on this order is six dollars.
10. If you are not honest, people will _________________ you.
B. Read each question. Choose the best answer.
1. Which one is informal?
2. Which one isn’t fair?
3. Whom do you mistrust?
4. Which one do you unfold?
❒
❒
❒
❒
tuxedo
unequal
liar
leader
❒
❒
❒
❒
sweatsuit
equal
friend
letter
Writing to Learn
Explain how one of the prefixes changes the meaning of words.
Use at least two vocabulary words in your explanation.
67
LESSON
21
name _____________________________________________ date ____________
Prefixes mis-, in-, sub-, un-, reFind the hidden picture. Cut out the squares on the right side of the
page. Match the word on each square to the correct meaning on the left
side of the page. Paste the squares to form a picture.
act up
recount
✁
casual
unequal
informal
not straight
suspect someone
not equal
a kind of heading
subtitle
another look
not the final amount
misbehave
review
subtotal
indirect
a second spread out
count
mistrust
68
240 Vocabular y Words Kids Need to Know: Grade 3 © 2012 by Linda Ward Beech, Scholastic Teaching Resources
unfold
240 Vocabular y Words Kids Need to Know: Grade 3 © 2012 by Linda Ward Beech, Scholastic Teaching Resources
Lesson 21, page 66: A. 1. review
2. subtotal 3. informal 4. unequal
5. misbehave 6. subtitle B. 1. Prefix
in- 2. Prefix mis- 3. Prefix un4. Prefix re- page 67: A. 1. misbehave 2. indirect 3. subtitle
4. unequal 5. recount 6. review
7. informal 8. unfold 9. subtotal
10. mistrust B. 1. sweatsuit
2. unequal 3. liar 4. letter page 68:
act up/misbehave, casual/informal,
not straight/indirect, suspect someone/mistrust, not equal/unequal, a
kind of heading/subtitle, another
look/review, not the final amount/
subtotal, a second count/recount,
spread out/unfold. The completed
picture shows a dog
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