Lesson plan

Interpret statements in a context by using function notation

teaches Common Core State Standards CCSS.Math.Content.HSF-IF.A.2 http://corestandards.org/Math/Content/HSF/IF/A/2
teaches Common Core State Standards CCSS.Math.Content.HSF-IF.B.5 http://corestandards.org/Math/Content/HSF/IF/B/5
teaches Common Core State Standards CCSS.Math.Practice.MP2 http://corestandards.org/Math/Practice/MP2
teaches Common Core State Standards CCSS.Math.Practice.MP4 http://corestandards.org/Math/Practice/MP4
teaches Common Core State Standards CCSS.Math.Practice.MP6 http://corestandards.org/Math/Practice/MP6

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Big Ideas: Functions have a special notation that allows relationships to be displayed in a concise and meaningful way. (F-IF.2) Functions can be used to model real-world situations. (F-IF.5) This lesson builds on students' understanding of functions. The task introduces the concept of function notation and represents downloading music using function notation. Students are given a function that relates the cost of downloading music to the number of songs downloaded. They then have to interpret the meaning of the mathematical notation and explain it using everyday language. This builds towards students' ability to use function notation in a variety of contexts. Vocabulary: Function, domain/range, input/output Special Materials: none