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Prefixes and Suffixes
5th Grade
What are prefixes?
A prefix is a group of letters we add at the beginning of a word.
• Prefixes change the meaning or purpose of the word, e.g.
• un + kind = unkind
How has the word meaning been altered?
The word has become its opposite meaning (antonym)
The prefix ‘un’
• Jerry seemed unhappy that the cat was by his hole.
The word has become its opposite meaning (antonym)
How has the word meaning been altered?
Let’s change the meaning to not or the opposite
fold
tie
do
real
unfold
untie
undo
unreal
The prefix ‘dis’
•Sally disagreed with Tom over who threw the snowball.
How has the word meaning been altered with this prefix?
agree-----disagree
Again the word has become an antonym (opposite) of the root word.
Let’s change the words to their opposites
connectapprove
respect
honest
disconnect
disapprovedisrespect
dishonest
Prefix ‘im-’
The word means not or the opposite.
Debby was impolite with her mom sticking her toungue out.
Let’s change the words to their opposites
mortal
impossible
mature
proper
possible
immortal
immatureimproper
The prefix ‘re-’
Danny had to refill
the bucket.
The prefix re- means to do something again
Let’s change these words so they mean to do something
again
reappearrebuild
reconsider
rejoin
appear
build
consider
join
What are suffixes?
• Suffixes are a group of letters that Suffixes are a group of letters that are added at the end of the words.are added at the end of the words.
• Suffixes Suffixes change the meaningchange the meaning or or purpose purpose of the word.of the word.
• Example:Example:
Care + Care + fulful = care = carefulful
It meansIt means full of full of carecare..
Suffixes: -ful / -ous / -or /-er• Success + -ful = successful (full of
success)
• Courage + -ous = courageous (full of or having courage)
• Sail + -or= sailor (the one who does the action = sails)
• Paint + -er = painter (who one who does the action= paints)
Let’s practice
Color + -ful =
colorful (Full of color)
nerve + -ous =
director
(Full of nerves)
write + -er =
nervous
Person who directs
direct + -or =
writer Person who writes