Lesson plan

6. Speedy Internet Investigation: Comparing the constant of proportionality using tables and graphs

teaches Common Core State Standards CCSS.Math.Content.7.RP.A.2 http://corestandards.org/Math/Content/7/RP/A/2
teaches Common Core State Standards CCSS.Math.Content.7.RP.A.2b http://corestandards.org/Math/Content/7/RP/A/2/b
teaches Common Core State Standards CCSS.Math.Practice.MP4 http://corestandards.org/Math/Practice/MP4
teaches Common Core State Standards CCSS.Math.Practice.MP7 http://corestandards.org/Math/Practice/MP7

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This lesson builds on students' work with finding the constant of proportionality. This task asks students to compare advertisements from internet service providers and choose the company with the fastest download speed. Students are presented with a table, graph, and verbal description. By comparing the constant of proportionality from each, students will be able to identify which internet service provider is truly the fastest. The mathematical concepts in this lesson build toward students' future work with comparing proportional relationships in grade 8. Big Idea: The constant of proportionality can be used to compare data presented in different forms. Vocabulary: constant of proportionality