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August 27, 2010

August 27, 2010. HW for tonight: “ Bumpin ’ into Factors ” worksheet Open your agenda to your behavior card 3) Put your name on the back of your time test and leave face down. 4) Set up your paper to Warm-Up #5. Warm-Up #5.

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August 27, 2010

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  1. August 27, 2010 • HW for tonight: “Bumpin’ into Factors” worksheet • Open your agenda to your behavior card 3) Put your name on the back of your time test and leave face down. 4) Set up your paper to Warm-Up #5

  2. Warm-Up #5 Identify each number as prime or composite and tell how you know. List all the rules it fits. 1. 19 is _______ because it is divisible by ________. 2. 57 is _______ because it is divisible by ________. 3. 852 is _______ because it is divisible by _______. prime 1 & 19 ONLY 3 composite 2, 3, 4, 6 composite

  3. Factors and Multiples Number Theory GONE WILD! Factors “Fit” into Families Multiples Multiply like Rabbits!

  4. What am I Learning Today? Factors How will I show that I learned it? Calculate the factors of a given number using the list method Use the divisibility rules to help find factors Use factors to determine whether or not numbers are prime or composite

  5. Vocabulary Factor: Whole numbers that are multiplied to find a product. Product: The answer to a multiplication problem

  6. What is a factor? Whole numbers that are multiplied to create a product. Remember: A product is the result of two numbers multiplied together. 2 3 = 6 Factors Product 1 6 = 6

  7. What types of numbers are factors? What do all factors have in common? Both prime and composite, including one. A factor of one since one multiplied by any number equals that number.

  8. How do I find factors using the list method? 1) Use the divisibility rules to list the numbers that evenly divide into that number 2) Each factor must have a partner (BFF) in order to create a factor pair List all factors of 12.Begin listing factors in pairs. 12 = 1 • 12 1 and 12 are factors. 12 = 2 • 6 2 and 6 are factors. 12 = 3 • 4 3 and 4 are factors. 3 4 2 6 12 1 You can draw a diagram to illustrate the factor pairs. The factors of 12 are 1, 2, 3, 4, 6, and 12

  9. What are the factors of 36? Hint: Use the divisibility rules to help you find the factor pairs 1 and 36 are factors. 36 = 1 • 36 2 and 18 are factors. 36 = 2 • 18 36 = 3 • 12 3 and 12 are factors. 4 and 9 are factors. 36 = 4 • 9 5 is not a factor. 36 = 6 • 6 6 is a factor. The factors of 36 are 1, 2, 3, 4, 6, 9, 12, 18, 36 Why is “6” only listed once?

  10. Roll Those Factors • Roll the dice, form a two digit number, and record it • List all the factors of the number rolled and count the total • Tally your score • Take turns and make sure you check your partner’s factors for accuracy

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