How to Model Fraction Division Georgia Performance Standard: M5N4 Fifth Grade Bob Gregg, Hollydale Elementary School, Cobb County September, 2009.

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Presentation transcript:

How to Model Fraction Division Georgia Performance Standard: M5N4 Fifth Grade Bob Gregg, Hollydale Elementary School, Cobb County September, 2009

Essential Questions Unit: How do I work with numbers that are part of a whole? How do I compute with fractions? Lesson: How many groups of the divisor can I get from the dividend?”

Vocabulary Dividend: (the amount you begin with) Divisor: (the size of each group you will make) Quotient: (the number of groups of the divisor that are in the dividend) Compute: (a math process like +, -. x, ÷ Whole: (one complete thing)

Vocabulary 25 ÷ 5 = 5 DividendDivisorQuotient 3/4 ÷ 1/4 = N

How many groups of the divisor can I get from the dividend? DividendDivisorQuotient 2

How many groups of the divisor can I get from the dividend? DividendDivisorQuotient 3

How many groups of the divisor can I get from the dividend? DividendDivisorQuotient 4

How many groups of the divisor can I get from the dividend? DividendDivisorQuotient 5

How many groups of the divisor can I get from the dividend? DividendDivisorQuotient 6

How many groups of the divisor can I get from the dividend? DividendDivisorQuotient 10

How many groups of the divisor can I get from the dividend? DividendDivisorQuotient 12

How many groups of the divisor 1/4 can I get from the dividend of 3/4 ? DividendDivisorQuotient 3 3/4 ÷ 1/4 = 3

How many groups of the divisor 6/10 can I get from the dividend of 2/10 ? DividendDivisorQuotient 3 6/10 ÷ 2/10 = 3

DividendDivisorQuotient 2 How many groups of the divisor 2/5 can I get from the dividend of 8/10 ? 8/10 ÷ 2/5 = 2