Understanding Prefixes and Suffixes for Vocabulary Building

1. Prefixes and Suffixes

3. Prefixes A prefix is a group of letter added to the beginning of a root word.

4. Root • The root is the main part of the word. • It is sometimes called the base word.

5. Locate the Root • There goes a duckling! It’s diving underwater. That’s unbelievable! What a fearless little duck!

6. What is the root in each of these words? • Unplug • Rebuild • Teacher • Drinkable

7. Prefixes • Adding a prefix changes the meaning of the base word. Safe Happy Roll Tie Unsafe Unhappy Unroll untie

8. “NOT” • Adding “un,” creates the opposite word. Unhealthy Uneven Unwise Unreal Unplug

10. “DIS” Adding “dis” also means “not Disagree Disorganized Disposable Discontinued Disrespectful

12. “re” • The prefix “re” means “to do something again” Redraw Retell Rethink Resend

15. Over and Under • Stop pouring the milk. My glass is overflowing! • Stop feeding me cookies. I don’t want to overeat! • I’m not pulling any more weeds. I’m overworked! What does “over” mean? “Over” = Too much

17. Over and Under • This hamburger is still pink. It’s undercooked. • Don’t underfeed the octopus. It might start eating the fish! • I undercounted the number of desks. There are 26 instead of 24. What does “under” mean? “Under” = Not enough

18. Over and Under • Over and under can also mean “over” and “under” Watch out! There’s a flock of pigeons overhead. The squirrel buried his acorns underground.

20. Pro – In favor of If you are in favor of homework, then you are _____- homework. If you are in favor of the Cleveland Indians, then you are _____ - Tribe!

21. Pro The character we are “in favor of” in a story is known as the ________________________ protagonist

23. Anti -against If you are against homework, then you are _______ - homework.

24. Anti The character who is against the protagonist is the ____________________________. antagonist

26. Prefixes for the Week Pro- Anti- Under - Inter- between Dis- not Un-not Re- again Over – too much

27. Complete character map • Finish reading Chapter 11. Begin on page 66!

28. Before and After A prefix comes before the root word! We are taking a pretest in Social Studies. There were ten previews before the movie started. You must prepay for gas at this station. What does “pre” mean? “pre”= before

30. Before and After What is the opposite of “pre?” Be sure and stay after the game. There’s a postgame party! I’m sorry the holidays are over. I have the postholiday blues. “Post” = After

31. Review • Re = • un= • Pre= • Post= • Under= • Over= • Dis= Again Not/Opposite Before After Not enough Too much Not

32. Number Prefixes

33. How many? Quadruplets are __________ brothers or sisters born at the same time. A millipede is an insect that is sometimes called a ______________-legger. A semicircle is a _________ circle. A multicolored coat has _________ colors.

34. Name a shape that has three sides or angles. 2. What kind of chocolate is only partly sweet? 3. What kind of cereal has many kinds of grain in it? 4. What word describes how there is only one “you?”

35. Suffixes A suffix is a group of letter added to the end of a word.

36. Verb to a Noun A verb is an action word! “-er” means someone who does!

37. Verb to a Noun

38. Verb to an Adjective An adjective is a word that describes a noun!

39. Verb to an Adjective

40. Verb to an Adjective “-less” means “without”

41. Opposites I’m hopeful about the game but hopeless about my grades. Kevin is careful with money but careless with his clothes.