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Engage students in learning factors, primes, and composites through an interactive game. Understand when to go first, best moves, and ending the game. Enhance multiplication and division skills.
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Prime Time Lesson 1.1: Playing the Factor Game
Materials • Labsheet 1.1 (1 per pair) • colored pens, pencils, or markers
Vocabulary • (whole number) factor • (whole number) divisor • proper factor
Goals • Become familiar with the factors of the numbers from 2 to 30 • Review multiplication and division of small whole numbers • Begin to recognize the difference between prime numbers and composite numbers • Relate dividing and finding factors of a number
Launch • As you play the game, think about these questions: Is it better to go first or second? Why? What is the best first move? Why? How do you know when the game is over? How do you know when you have found all the factors of a number?
Explore – 20 Minutes • A – F on page 9 40 Min. 30 Min. 20 Min. 10 Min.
