Exploring Prefix Meanings in English Vocabulary

1. Learning Objective Name________________________ Today, we will determine1 the meaning of prefixes. 1 figure out CFU What are we going to do today? What does determine mean? Determine means __________. Activate (or Provide) Prior Knowledge What is the difference between the two pictures? (pair-share) What is the difference between the two words? (pair-share) happy unhappy CFU Students, when we add a group of letters such as un- at the beginning of another word, it changes the word’s meaning. Unhappy means sad or not happy. Letters that are added to the beginning of words to change their meaning are called prefixes. Today, we will determine the meaning of prefixes.

2. Concept Development • A prefix is a letter or group of letters added to the beginningof aword that • changes its meaning. • A prefix has a meaning of its own. • The prefix modifies2 the meaning of a word the same or almost the same • way each time it is used. 2 (synonym) changes Example: un- CFU What is the difference between the word unreal and the word uncle? The difference between the word unreal and the word uncle is ______________________. Which word has a prefix? How do you know? __has a prefix because___________. A unhappy B happy In your own words what is a prefix? A prefix is _____________. A

3. Skill Development/Guided Practice Aprefixis a letter or group of letters added to the beginningof aword that changes its meaning. Determine the meaning of prefixes. refill fill again remake make again not able unable unclear not clear overheated heated too much cooked too much overcooked CFU (#3) How did I/you determine the meaning of the new word?

4. Relevance Aprefixis a letter or group of letters added to the beginningof a word that changes its meaning. • Determining the meaning of prefixes willhelp you figure • out the meaning of unknown words. • 2. Determining the meaning of prefixes will help you do well • on tests. It isunusual for Sylvia to be late to school. un- = not usual = happens most of the time unusual = not happening most of the time CFU Does anyone else have another reason why it is relevant to determine the meaning of prefixes? (pair-share) Why is it relevant to determine the meaning of prefixes? You may give me one of my reasons or one of your own. Which reason is more relevant to you? Why?

5. Aprefixis a letter or group of letters added to the beginningof aword that changes its meaning. Skill Closure Determine the meaning of prefixes. retell tell again unlikely not likely Concept Closure In your own words, what is a prefix? Summary Closure What did you learn today about determining the meaning of prefixes? (pair-share)

6. Name ___________________________ Independent Practice Aprefixis a letter or group of letters added to the beginningof aword that changes its meaning. Determine the meaning of prefixes. restart start again rerun run again not healthy unhealthy uneven not even overload too much of a load too much size, too big oversized

7. Periodic Review 1 Name ___________________________ Aprefixis a letter or group of letters added to the beginningof aword that changes its meaning. Determine the meaning of prefixes. recreate create again preset to set before dial again redial unfair not fair wash before prewash not lock unlock

8. Periodic Review 2 Name ___________________________ Aprefixis a letter or group of letters added to the beginningof aword that changes its meaning. Determine the meaning of prefixes. dislikes not like unhappy not happy mix before premix not respected disrespect unclean not clean before school preschool

9. Periodic Review 3 Name ___________________________ Aprefixis a letter or group of letters added to the beginningof aword that changes its meaning. Determine the meaning of prefixes. disloyal not loyal rebuild build again pay again repay dishonest not honest misplace wrongly placed wrongly counted miscount

10. EDI – Cognitive, Teaching and English Learners Strategies