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Published byEugene Harrington Modified over 9 years ago
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Dividing Fractions 2-3 Dividing Fractions
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POD – Multiplying Fractions
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Dividing Fractions vs. Multiplying Pizza – what is ½ of 2½ pizzas?
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Dividing Fractions vs. Multiplying What is 2½ pizzas divided into 2?
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Dividing = Multiplying by the Reciprocal Same problems! Dividing = Multiplying by Reciprocal… What is Reciprocal?
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Reciprocal – flipping fraction Switch Numerator and Denominator (top and bottom) If starting with a whole number (7), put it over 1 And then flip it!
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Practice Find the reciprocal of each number… Always leave reciprocal as improper fraction
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How do we put this all back together? Dividing = multiplying by the reciprocal
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Practice with your neighbor… Please find the following quotients (answers to division statements)
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What happens when you have a negative?
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Tips for Dividing Copy, change, flip Keep… Only cancel AFTER you flip Make sure you change from dividing to multiplying when you flip
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Reflection Question… How are multiplying and dividing fractions connected? How are they similar? How are they different? Where do you think students would be most likely to make a mistake while dividing? Use letter, numbers, symbols, words, ANYTHING you need to explain your thinking!
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