1. Designed by Adriana T. Ibarra for the LANGUAGE ACQUISITION BRANCH LAUSD Based on and organized for use with Hampton Brown’s High Point curriculum, Basics level. Unless otherwise cited, all graphics come directly from High Point materials, ClickArt 950,000, published by Broderbund software, or the Microsoft Clip Art and Media Homepage, http://office.microsoft.com/clipart/default.aspx?lc=en-us. Graphics are only to be used for viewing purposes. They may not be saved or downloaded. http://office.microsoft.com/clipart/default.aspx?lc=en-us Prefixes Unit 17 Transparency 86

2. Learn how to read a word with a prefix. A prefix is a word part that is added at the beginning of a word.

3. High Point Basics Unit 17, Transparency 86, T278d The boy in the picture has a big smile. He is happy. happy Now the boy looks very unhappy. unhappy This is the root word. It is an adjective that describes the boy. This is the prefix un-. It changes the meaning of the word to the opposite: not happy.

4. High Point Basics Unit 17, Transparency 86, T278d The girl likes to build models for class projects. build There is a problem – now she must rebuild! rebuild This is the root word. It is a verb that describes the action of making something. This is the prefix re-. It adds meaning to the word build. Now it means “build again.”

5. High Point Basics Unit 17, Transparency 86, T278d I use this to lock the cabinets in the garage. lock You need the key to unlock it. unlock This is the root word. It is a verb that means to close something securely. This is the prefix un-. It changes the meaning of the word to the opposite: not lock, or open.

6. High Point Basics Unit 17, Transparency 86, T278d The librarian must place the books in order. place The girl is careful to replace the books properly. replace This is the root word. It is a verb that means to put something somewhere. This is the prefix re-. It adds meaning to the word “place.” Now it means “place again.”

7. High Point Basics Unit 17, Transparency 86, T278d The boy must tie on his skates so he does not fall. tie The boy must untie his skates before going inside. untie This is the root word. It is a verb that means to fasten something with a string. This is the prefix un-. It changes the meaning of the word to the opposite: not tied.

8. High Point Basics Unit 17, Transparency 86, T278d It is difficult to do all the painting. do He didn’t paint correctly, so he must redo it. redo This is the root word. It is a verb that means to perform an action or job. This is the prefix re-. It adds meaning to the word do. Now it means “do again.”

9. High Point Basics Unit 17, Transparency 86, T278d Did anyone cut the bread for the sandwiches? cut The bread is not ready – it is still uncut. uncut This is the root word. Here it is a verb that means to open something with a knife. This is the prefix un-. It changes the meaning of the word to the opposite: not cut.

10. High Point Basics Unit 17, Transparency 86, T278d We will have to write an essay in history class. write Once we finish editing, we will have to rewrite. rewrite This is the root word. It is a verb that means to make letters or words on paper with a pen or pencil. This is the prefix re-. It adds meaning to the word place”write.” Now it means “write again.”

11. High Point Basics Unit 17, Transparency 86, T278d safeun This is a prefix. Un- changes the meaning of a word to its opposite. This is an adjective. It describes someone or something that is free from danger. This word is an adjective that describes someone or something that is NOT free from danger.

12. High Point Basics Unit 17, Transparency 86, T278d tellre This is a prefix. Re- adds to the meaning of a word. It means “again.” This is a verb. It is the action of saying something to another person. This word is a verb that describes the action of saying something to someone AGAIN.