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Prime & Composite Numbers

Prime & Composite Numbers. Everyday Math Lesson 1.6. Lesson Objectives. I can define and classify prime and composite numbers. I can find the factors of a number. Mental Math. Vocabulary. Add the following words to your vocabulary chart: Composite number Prime number. Math Message.

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Prime & Composite Numbers

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  1. Prime & Composite Numbers Everyday Math Lesson 1.6

  2. Lesson Objectives • I can define and classify prime and composite numbers. • I can find the factors of a number.

  3. Mental Math

  4. Vocabulary • Add the following words to your vocabulary chart: • Composite number • Prime number

  5. Math Message Draw all possible rectangular arrays for these numbers: 2,4, 5, 10, 11, and 12 in your Work Journal.

  6. Defining Prime and Composites • Let’s compare the numbers from our math message. • What do you notices about the right side of our display and the left side of our display? Write your ideas on the same page that your did your Math Message.

  7. Defining Primes and Composites (cont.) • Each number on the right side has exactly two arrays. • Each number on the left side has more than two arrays. • Each number on the right has exactly 2 factors. • Each number on the left has more than 2 factors.

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