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Analyzing Complex Words: Understanding Prefixes and Base Words

Today, we will investigate the meaning of complex words by analyzing prefixes and base words. Learn how prefixes and base words combine to create new words. Improve your reading and writing skills by understanding word analysis.

marjoriecox
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Analyzing Complex Words: Understanding Prefixes and Base Words

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  1. Today we will analyze the meaning of complex words using our knowledge of prefixes and base words. analyze= investigate What will we use today? What does analyze mean? What will we analyze today? What are we going to do today?

  2. What was the last movie preview that you saw? In the word preview, we have the prefix “pre” which means before. We all know that a preview comes BEFORE a movie. Preview means to view before.

  3. Complex words A base or a root word combined with an prefix and/or a suffix. Combined=put together

  4. Base Word: A word that can stand alone, but can change meanings when a prefix is added. Example: View I would like to view the movie at home. (watch) I would like to preview the movie at home. (watch before) What is a base word? Why is view a base word?

  5. Prefix: a word part that is added to the beginning of a base word to create a new word • Example: • We saw the preview for the new Transformers movie. • Non-Example: • When I went to watch the movie, I ordered a pretzel. What is a prefix? Why is “pre” a prefix in preview? Why is “pre” not a prefix in pretzel?

  6. Let’s look at some more prefixes….....Hemi =HalfSemi =Half

  7. Let’s look at some base words! • Arid • Sphere • Annual • Formal • Conscious • Circle • Sweet • Weekly

  8. Arid = Dry Semicircle The desert was completely arid, with no water in sight.

  9. Sphere = ball The Earth is shaped like a sphere.

  10. Annual = Yearly MAR 2009 Semicircle You have to file your taxes and pay your car registration on an annual basis.

  11. Formal = Proper Semicircle We had to wear formal attire for the prom.

  12. Conscious = Aware The owl remains conscious of its surroundings throughout the night.

  13. Circle = Round Shape All of the flags were made into circles on this page.

  14. Sweet = Sugary Lollipops, candies, and chocolates are usually sweet.

  15. Weekly=7 days I get my car washed weekly.

  16. Why is it important to know how to analyze words? • It’s important to know how to analyze words so that: • we can understand the sentence • we can be better readers • we can read and write sentences correctly Why is it important to know how to analyze words? Do you know any other reason it’s important?

  17. How are we going to use prefixes? • Read the sentence. • Look at all of your choices. • Think about what each base word and prefix means. • Choose the word the BEST fits the sentence.

  18. How do I choose the correct word for the sentence? Lucas lives in Canada, which is in the northern _________________ of Earth. A) semiannual B) hemisphere C) semicircle D) semiarid hemisphere Why didn’t I use the word “semicircle”?

  19. Let’s Practice the Steps Together! semiannual • My school has a _________________ bake sale in October and April of each school year. • A) semiweekly • B) semiformal • C) semisweet • D) semiannual Why is semiweekly not the correct answer?

  20. Practice Steps 1 and 2 • Read the sentence. • Think: What is the sentence about? • This describes two major deserts in the United States. They include the Great Basin and sagebrush regions of Utah and Montana. Their climates are ___________. • A) semiannual • B) hemisphere • C) semiarid • D) semisweet

  21. Let’s do Step 3 and 4 together 3. Think about what each base word and prefix means. 4. Choose the word the BEST fits the sentence. • This describes two major deserts in the United States. They include the Great Basin and sagebrush regions of Utah and Montana. Their climates are ___________. • A) semiannual • B) hemisphere • C) semiarid • D) semisweet semiarid

  22. Now do all the steps and fill in the correct word in the following sentence: • Read the sentence. • Look at all of your choices. • Think about what each base word and prefix means. • Choose the word the BEST fits the sentence. To begin the project, she cut the paper plates into two halves. What are the halves called? A)hemisphere B) semicircles C) semiformal D)semisweet semicircles

  23. Let’s review what we learned: • What is a prefix? • Why is “hemi” a prefix? • What does “semi” mean? • What do you think is the most important reason to know how to analyze words? Fill in the blank with the correct word: She was ___________________ of her surroundings when the alarm when off at midnight because she was still partly asleep. A) semiconscious B) semiarid C) semisweet D) semiannual semiconscious

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