2. Prefixes reading standard=1.8 Use knowledge of prefixes to determine the meaning of words.

3. 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?

4. 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?

5. The way we knew exactly what was meant was by adding a prefix.

6. 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?

7. A prefix changes the meaning of a word.

8. 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

9. Prefixes improper incomplete

10. Prefixes bicyclenonstop

11. Prefix disagreereread

12. Prefixes Pre-readmisspell

13. Importance Why is it important to know prefixes?

14. 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

15. Read the sentence. Think: “What is the sentence about?” Look at the prefix definition. Choose and write the best prefix for the sentence.

16. 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)

17. 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)

18. Review A prefix is a word part added to the beginning of a base word. A prefix changes the meaning of a word.

19. Prefixes bicyclenonstop

20. “That’s nonsense,” said his brother Jake. “You can use my bike.”

21. “Gee, thanks,” said Randy, hopping on the bike.

22. “See, I can be likable!” said Jake with a grin.