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Suffixes
Reading standard 1.8
Use knowledge of suffixes to determine the
meaning of words.
Suffixes
• Today we are going to use suffixes to determine the meaning of words.
• Determine= figure out
• What are we going to do today?
• What are we going to determine?
Suffixes
• My cousin is taller than me. Is your cousin taller than you?
• Who is the tallest person in your house?
• Are you a helpful student?
A suffix is a word part added to the
end of a base word.
A suffix also changes the meaning of a
word.
Suffixes We Know Examples
-er person or thing that does something
-or -doer
-er more than (2 things)
-est- to the greatest extent
-ful- full of something
-less without
-able, -ible can be
farmer
actor
sweeter
sweetest
handful
useless
buildable
reversible
WARNING! Non examplesJust because a word ends with er, est, ful, or another suffix
doesn’t mean it is a suffix. If there is no base word, then it’s not a suffix.
Non Examples
1.The panda had a lot of anger towards the fish.
If there is no base word, then it’s not a suffix.
Ang is not a base word, so er is not a suffix in this case.
2. The police are trained to arrest people.
Arr is not a base word, so est is not a suffix in this case.
3.The polluted water looked awful.
Aw is not a base word, so ful is not a suffix in this case.
Importance
• Why is it important to know suffixes?
• The pictures will help you determine the meaning of the words.
SuffixesFarmer- the –er changes “farm” to “someone who
farms”Actor-the –or changes the word
from “act” to “someone who acts”
SuffixesSweetest- the –est changes the word to
mean the most sweet handful- the –ful means full of
Suffixesstrongest useless
Suffixes
buildable reversible
Directions
• Read the sentence.
• Think: “What is the sentence about?”
• Look at the prefix definition.
• Choose and write the best prefix for the sentence.
Practice
• Choose and write the best suffix that completes the sentence.
1. Is your room_____ than my room?
(a)colder (b) coldest (c) coldier
2. That was the ______ story I ever read.
(a) funnier (b) funnyest (c) funniest
Practice
3. Becky has a _____ of oranges in her hands.
(a)handdful (b)handful ©handfull
Review
• A suffix is a word part added to the end of a base word.
• A suffix also changes the meaning of a word.
• REMEMBER! If there is no base word, then it’s not a suffix.