Lesson plan

2. Identify and describe ratio relationships (FP)

teaches Common Core State Standards CCSS.Math.Content.6.RP.A.1 http://corestandards.org/Math/Content/6/RP/A/1
teaches Common Core State Standards CCSS.Math.Practice.MP4 http://corestandards.org/Math/Practice/MP4
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Lesson objective: Represent a situation using a ratio, in multiple different ways.

This lesson helps to build fluency with writing ratio statements.  The distinction between part-to-part and part-to-whole relationships is used here because it supports students' development of the multiple ways to represent the same situation. This work develops students' understanding that a ratio is a comparison by division.

Students engage in Mathematical Practice 4 (model with mathematics) as they apply ratio reasoning to a real life situation.

Key vocabulary:

  • part-to-part
  • part-to-whole
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