Prefixes and Suffixes
Mrs. Chantz
Tigers English 2007-2008
Table of Contents
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Goals
Standards
Lesson
Assessment Games
Goals
By the end of this PowerPoint,
I want you to be able to:
– Recall the meaning of
several common prefixes
– Understand how prefixes
change word meanings
Standards
1.1.8
• Use knowledge of root words as well as
context clues and glossaries to understand
specialized vocabulary in the content
areas during reading. Use these words
accurately in speaking and writing.
1.7.8
• Describe the origins and meanings of
common, learned and foreign words used
frequently in English language (e.g., carte
blanche, faux pas).
• Analyze the role and place of standard
American English in speech, writing and
literature.
• Identify new words that have been added
to the English language over time.
Number Prefixes
These prefixes indicate
number value in a word:
Bi-two—bicycle-two wheels
Tri-three—triangle—three
angles
Lesson
Prefixes are added to the
beginning of words to
change a words meaning.
Cycle is something you ride.
Bicycle is something you ride
with two wheels.
You try
Write a word that uses each
prefix, then write a
definition for the word:
1. Bi2. Tri-
Not Prefixes
These prefixes indicate the
word not:
il—illegal—not legal
Im—impossible—not possible
In—inactive—not active
Ir—irregular—not regular
Non—nonsense—no sense
Un—unable—not able
Now you try--Write a word that
uses each prefix, then write a
definition for the word:
il—
Im—
In—
Ir—
Non—
Un—
Direction Prefixes:
De—lower—descend—move to a lower
place
Mid—middle—midway—middle of the
way
In—in/into—inhale—breath in
Im—in/into—import—bring into
Re—back—recurve—a backwards bend
Sub—under—submarine—underwater
Super—above—superimpose—place
above
Now you try--Write a word that
uses each prefix, then write a
definition for the word:
De—
Mid—
In—
Im—
Re—
Sub—
Super—
Time Prefixes
Fore—ahead of time—
forewarn—warn ahead of
time
Pre—before—prefix—before
the word
Re—again—redo—do again
Now you try--Write a word that
uses each prefix, then write a
definition for the word:
Fore—
Pre—
Re—
Behavior Prefixes:
Mis—wrongly—
misunderstand—wrongly
understand
Mis—badly—misbehave—
badly behave
Now you try--Write a word that
uses each prefix, then write a
definition for the word:
Mis—
Mis—
Combining Prefixes:
Com—together—compact—
packed together
Con—with—contact—
communicate with
Now you try--Write a word that
uses each prefix, then write a
definition for the word:
Com—
Con—
Practice
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Prefix definition game
Prefix definition game 2
Prefix definition game 3
Prefixes in context game
Making words with prefixes
game
Assignment
You will be quizzed on the
prefixes and their
meanings so start to study.