Multiplying Fractions Using the Area Model

The video tutorial explains how to multiply fractions using an area model. It uses the example of Johnny's pie to illustrate finding a fraction of a fraction. The tutorial reimagines the whole pie to help understand the concept better and calculates the fraction of the pie Trinity ate. It concludes with a simpler method for multiplying fractions.

What is the first method mentioned for multiplying fractions?

• Decimal conversion

• Fractional division

• Area model

• Cross multiplication

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CCSS.5.NF.B.6

What fraction of the pie did Johnny have left?

• 3/5

• 1/4

• 1/5

• 2/5

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CCSS.3.NF.A.2B

How many parts was the pie divided into for the area model?

• 3

• 5

• 10

• 15

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CCSS.4.NBT.B.6

CCSS.5.NBT.B.6

What fraction of the remaining pie did Trinity decide to eat?

• 1/3

• 3/4

• 2/3

• 1/2

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CCSS.3.NF.A.1

CCSS.3.NF.A.2B

How was the remaining piece of pie further divided to represent Trinity's portion?

• Into fifths

• Into quarters

• Into thirds

• Into halves

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CCSS.2.G.A.3

What total number of pieces do we have when reimagining the whole pie?

• 10

• 12

• 20

• 15

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CCSS.1.G.A.3

What fraction of the pie did Trinity actually eat?

• 2/15

• 2/5

• 3/15

• 1/5

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CCSS.3.NF.A.1

CCSS.3.NF.A.2B

Why do we use dashed lines in the area model?

• To highlight Trinity's portion

• To reimagine the whole pie

• To divide the pie into equal parts

• To represent the eaten part of the pie

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CCSS.3.NF.A.1

CCSS.3.NF.A.2B

What is the purpose of reimagining the whole pie in the area model?

• To calculate the original size of the pie

• To understand the fraction that has been eaten

• To determine the fraction of the fraction eaten

• To simplify the multiplication process

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CCSS.3.NF.A.1

CCSS.3.NF.A.2B

Is there a simpler method than the area model for multiplying fractions?

• Yes, and it is hinted at the end

• Yes, and it involves decimal conversion

• No, the area model is the simplest

• Yes, but it is not discussed

Tags

CCSS.5.NF.B.6