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  1. 1. Prefixes
  2. 2. What is a prefix? <ul><li>A prefix is a small word part that is added to the beginning of a base word, to change it’s meaning. </li></ul>
  3. 3. <ul><li>Let’s look at what all of that means. </li></ul>
  4. 4. What exactly is a “word part”? <ul><li>A word part is a small chunk of a word that has no meaning on it’s own. </li></ul><ul><li>For example, a word part of the word smile is “sm” or “le”. </li></ul><ul><li>Another example of a word part is in the word untie. “Un” is a word part. The word part “un” has no meaning on its own. </li></ul>
  5. 5. What is a base word? <ul><li>A base word is a word in its simplest form. There are no other word parts added to it. </li></ul><ul><li>The word smile is a base word. Smiling is not because it has the word part –ing added at the end. </li></ul><ul><li>The word tie is a base word. Untie is not because it has the word part un- added to the beginning. </li></ul>
  6. 6. Base Word…or not? <ul><li>test </li></ul><ul><li>jumping </li></ul><ul><li>pretest </li></ul><ul><li>kind </li></ul><ul><li>unkind </li></ul><ul><li>write </li></ul><ul><li>rewrite </li></ul><ul><li>pack </li></ul><ul><li>packing </li></ul>
  7. 7. Pre- <ul><li>A prefix is a word part that comes at the beginning of a word, to fix (or change) its meaning. So…what do you think the prefix pre- means? </li></ul>
  8. 8. Pre- means “before” <ul><li>preview- to view something before someone else </li></ul><ul><li>preschool- where children go before they’re old enough for school </li></ul><ul><li>preheat- to heat an oven before you cook something </li></ul><ul><li>pretest- a test you take before learning something new </li></ul>
  9. 9. Re view <ul><li>What is a prefix? </li></ul><ul><li>What is a base word? </li></ul><ul><li>What does the prefix pre- mean? </li></ul><ul><li>Let’s create some pre- words! </li></ul>

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