Unit Metadata Unit Name
Extend Understanding of Multiplication to Multiply Fractions
Unit Summary
In this unit, your student will learn to multiply a whole number by a fraction, a fraction by a fraction, a whole number by a mixed number, a fraction by a mixed number, and a mixed number by a mixed number. She will use different models, such as fraction strips, area models, and number lines, and different methods, such as repeated addition and the Distributive Property, to find products. Later, she will develop and use algorithms for multiplying fractions and mixed numbers. She will interpret multiplication of fractions as scaling or resizing by comparing the sizes of factors and products. She will learn that multiplying by a number less than one results in a product smaller than the
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How many hours a day does a lion sleep? Write an equation to model your work. [Topic 8: Apply understanding of multiplication to Multiply Fractions > 8-1: Use Models to Multiply a Whole Number by a Fraction > Use Models to Multiply a Whole Number by a Fraction: Practice]
Answer: 20 hours; [Alt: 24 times five-sixths equals 20]
On Mars, your weight is about [Alt: one-third] of your weight on Earth. If Helena weighs 96 pounds on Earth, about how many pounds would she weigh on Mars? [Topic 8: Apply understanding of multiplication to Multiply Fractions > 8-1: Use Models to Multiply a Whole Number by a Fraction > Use Models to Multiply a Whole Number by a Fraction: Practice]
Answer: About 32 pounds [TE, p. 460]
Bradley is making fruit salad. For each bowl of fruit salad, he needs [Alt: three-fourth] cup of grapes. How many cups of grapes will he use if he makes 24 bowls of fruit salad? [Topic 8: Apply understanding of multiplication to Multiply Fractions > 8-1: Use Models to Multiply a Whole Number by a Fraction > Use Models to Multiply a Whole Number by a Fraction: Practice]
Answer: 18 cups of grapes [TE, p.