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Prefixes. Prefixes. reading standard=1.8 Use knowledge of prefixes to determine the meaning of words. Prefixes. Today we are going to use prefixes to determine the meaning of words. Determine= figure out What are going to do today? What are we going to determine?. Prefixes.

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Presentation Transcript
prefixes
Prefixes
  • reading standard=1.8 Use knowledge of prefixes to determine the meaning of words.
prefixes1
Prefixes
  • Today we are going to use prefixes to determine the meaning of words.
  • Determine= figure out
  • What are going to do today?
  • What are we going to determine?
prefixes2
Prefixes
  • If you untie your shoe, are you making a bow or taking it out?
  • If you rewrite your letter, are you writing it for the first time or second time?
  • If it is impossible to swim to China, can you do it or not?
slide6

A prefix is a word part added to the beginning of a base word.

Please keep in mind…the base word is a word by itself. Example pre-read. Read is a word by itself without the prefix “pre”. Pre + read=pre-read

What is a prefix?

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Prefixes and Definitions

Examples

im- not

in- not

bi- two

non- not

dis- not or opposite of

Re-do again

Pre-before

Mis-incorrect

improper

incomplete

bicycle

nonstop

disagree

reread

Pre-read

misspell

prefixes3
Prefixes

improper

incomplete

prefixes4
Prefixes

bicycle

nonstop

prefix
Prefix

disagree

reread

prefixes5
Prefixes

Pre-read

misspell

importance
Importance
  • Why is it important to know prefixes?
warning
WARNING!

Just because a word begins with im, re, or another prefix, doesn’t mean it is a prefix.

  • Eating a good breakfast is important.
  • The mailman received the mail.

If there is no base word, then it’s not a prefix.

Ceive or Portant don’t mean anything by themselves

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Read the sentence.

  • Think: “What is the sentence about?”
  • Look at the prefix definition.
  • Choose and write the best prefix for the sentence.
prefixes6
Prefixes
  • Choose and write the best prefix for the sentence.
  • 1. Please _______ my glass with milk.

(fill again)

2. You must _________ the oven to 300 degrees. (heat again)

prefixes7
Prefixes
  • Choose and write the best prefix for the sentence.
  • 3. He _____ his steps through the woods.

(traced again)

  • 4. You should _____ your notes before a test. (view again)
review
Review
  • A prefix is a word part added to the beginning of a base word.
  • A prefix changes the meaning of a word.
prefixes8
Prefixes

bicycle

nonstop

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