Description
In Topic G, students build on the concept of representing repeated addition as multiplication, applying this familiar concept to work with fractions (4.NF.4a, 4.NF.4b). They use the associative property and their understanding of decomposition. Just as with whole numbers, the unit remains unchanged. This understanding connects to students’ work with place value and whole numbers. Students proceed to explore the use of the distributive property to multiply a whole number by a mixed number. They recognize that they are multiplying each part of a mixed number by the whole number and use efficient strategies to do so. The topic closes with solving multiplicative comparison word problems involving fractions (4.NF.4c) as well as problems involving the interpretation of data presented on a line plot.
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Credits
From EngageNY.org of the New York State Education Department. Grade 4 Mathematics Module 5, Topic G Overview.
Available from engageny.org/resource/grade-4-mathematics-module-5-topic-g-overview; accessed 2015-05-29.
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