Lesson plan

Determine if a function is discrete or continuous by analyzing the domain

teaches Common Core State Standards CCSS.Math.Content.8.F.A.1 http://corestandards.org/Math/Content/8/F/A/1
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

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Big Ideas: Functions are a tool that help us describe the unique relationship between real-life variables. Functions are not always continuous; some situations are only realistic with a discrete domain. This task builds on students’ understanding that functions represent relationships between variables and requires that students have a basic knowledge of discrete and continuous functions. This task requires students to apply this knowledge as they reason through a real-life situation, evaluate reasonable (viable) solutions, and analyze if the domain of a function is discrete or continuous. This builds toward later work with determining the domain of rational functions (A.REI.2). Vocabulary: function, domain, range, discrete, continuous Special Materials: Sorting Cards (attached as .pdf) Sorting Cards Answer Key (for use with Debrief slides)