Lesson plan

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

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.Content.6.RP.A.3a http://corestandards.org/Math/Content/6/RP/A/3/a
teaches Common Core State Standards CCSS.Math.Practice.MP2 http://corestandards.org/Math/Practice/MP2
teaches Common Core State Standards CCSS.Math.Practice.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. In this lesson, students will use tables of quantities in equivalent ratios (ratio tables) to solve ratio problems. Students will be asked to attend to part:part as well as part:total quantity relationships. Students will also use multiplicative reasoning to find missing non-consecutive values in a whole-number equivalent ratio sequence. 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, scaling, and expressing and graphing linear functions. Vocabulary: for every, per, ratio reasoning, multiplicative, additive, equivalent, quantities, part, total, and ratio notation, including 3:1, '3 to 1' and '3 for every 1' Special Materials: none