Lesson plan

# Estimate the answer to a fraction division problem by comparing the dividend and divisor

teaches Common Core State Standards CCSS.Math.Content.6.NS.A.1 http://corestandards.org/Math/Content/6/NS/A/1
teaches Common Core State Standards CCSS.Math.Practice.MP1 http://corestandards.org/Math/Practice/MP1

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Big Ideas: The quotient may be greater than or less than the dividend or divisor. When the dividend is less than the divisor, the quotient will be less than one. When the dividend is greater than the divisor, the quotient will be greater than one. In grade 5, students interpret a fraction as division of the numerator by the denominator. This concept is extended to divide a whole number by a unit fraction and a fraction divided by a whole number. In Grade 6, students extend their knowledge to include finding the quotient of two fractions of any kind. In this lesson, students use estimation as a method to see the reasonableness of an answer. Students look at the size of the dividend and the divisor to make generalizations about the quotient. This is will lead into lessons where student will need to question whether the quotient is a reasonable answer for the problem. Vocabulary: divisor, dividend, quotient, estimate Special Materials: grid or graph paper