Lesson plan

Use percent to analyze a real world problem involving a population increase and decrease

teaches Common Core State Standards CCSS.Math.Content.7.EE.B.3 http://corestandards.org/Math/Content/7/EE/B/3
teaches Common Core State Standards CCSS.Math.Content.7.RP.A.3 http://corestandards.org/Math/Content/7/RP/A/3
teaches Common Core State Standards CCSS.Math.Practice.MP1 http://corestandards.org/Math/Practice/MP1

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Big Ideas: Expressing an increase or decrease as a percent change allows for an accurate comparison of two quantities. Percent is relative to the size of the whole. In this task, students will compare an increase and decrease in male and female populations at the local middle school. The changes are provided in two different forms: as a percent and as a quantity. Students must use their understanding of the nature of percents in terms of representing parts and wholes to determine which gender had the greatest change. Vocabulary: percent increase, percent decrease Special Materials: No special resources are needed for this task.