Mastering Mixed Numbers with Visual Models

This video tutorial teaches how to add and subtract mixed numbers using visual models. It uses a real-life example of Sarah and Lily making cupcakes to demonstrate the process. The tutorial explains how to combine fractions to form whole numbers and how to subtract mixed numbers to find the remaining quantity. The lesson concludes with a summary of the key concepts learned.

What are Sarah and Lily making in the kitchen?

• Cookies

• Brownies

• Pies

• Cupcakes

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CCSS.RI.6.1

CCSS.RI.7.1

CCSS.RL.6.1

CCSS.RL.7.1

CCSS.RL.8.1

How many cups of sugar did Sarah use?

• 1 and 2/3

• 3 and 1/3

• 2 and 1/3

• 2 and 2/3

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CCSS.7.EE.B.3

How many cups of sugar did Lily use?

• 2 and 2/3

• 2 and 1/3

• 1 and 2/3

• 1 and 1/3

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CCSS.5.NF.A.1

CCSS.5.NF.A.2

How many full cups of sugar do Sarah and Lily have together before combining the fractions?

• 4

• 3

• 5

• 2

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CCSS.5.NF.A.1

CCSS.5.NF.A.2

What fraction of a cup is needed to make a full cup if you have two-thirds?

• One-fourth

• One-half

• Two-thirds

• One-third

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CCSS.3.NF.A.1

CCSS.3.NF.A.2B

After combining the fractions, how many full cups of sugar do Sarah and Lily have?

• 3

• 4

• 6

• 5

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CCSS.5.NF.A.1

CCSS.5.NF.A.2

What is the total amount of sugar used by Sarah and Lily?

• 4 and 1/3 cups

• 4 and 2/3 cups

• 3 and 2/3 cups

• 3 and 1/3 cups

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CCSS.5.NF.A.1

CCSS.5.NF.A.2

How much sugar was initially in the sugar pot?

• 9 and 1/3 cups

• 8 and 2/3 cups

• 8 and 1/3 cups

• 7 and 2/3 cups

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CCSS.7.EE.B.3

How much sugar is left in the pot after Sarah and Lily used some?

• 3 and 1/3 cups

• 4 and 2/3 cups

• 4 and 1/3 cups

• 5 and 1/3 cups

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CCSS.7.NS.A.3

What mathematical operations were covered in this lesson?

• Multiplication and division

• Addition and subtraction

• Subtraction and division

• Addition and multiplication

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CCSS.7.NS.A.3