Lesson plan

Solve ratio problems by using ratio reasoning to create tables of equivalent ratios

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teaches Common Core State Standards 6.RP.A.1 http://corestandards.org/Math/Content/6/RP/A/1
teaches Common Core State Standards 6.RP.A.3 http://corestandards.org/Math/Content/6/RP/A/3
teaches Common Core State Standards 6.RP.A.3.a http://corestandards.org/Math/Content/6/RP/A/3/a
teaches Common Core State Standards MP5 http://corestandards.org/Math/Practice/MP5
teaches Common Core State Standards MP7 http://corestandards.org/Math/Practice/MP7
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Big Ideas: Ratios are multiplicative relationships between two or more quantities that are related. Tables of quantities in equivalent ratios can be used to represent ratio problems and generate equivalent ratios to solve missing value problems. Ratio relationships can exist between whole and non-whole numbers. In this lesson, students will use tables of quantities in equivalent ratios (ratio tables) to solve ratio problems involving more than two related quantities including non-whole numbers. Students will be asked to attend to ratio relationships and to use multiplicative reasoning to find missing non-consecutive values in multiple equivalent ratio situations. This lesson will build upon students' prior understanding of equivalent ratios and previous work with number line reasoning, and will build toward future work in proportionality and scaling. Vocabulary: ratio reasoning, table of equivalent ratios (ratio table), multiplicative, equivalent, quantities, parts Special Materials: none