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Lesson Plan

Proportional Pasta Sauce: Analyzing a proportional relationship with like units and compute the ratio using a ratio table and multiplicative reasoning

teaches Common Core State Standards 7.4B
teaches Common Core State Standards 7.4D
teaches Common Core State Standards 7.C.5
teaches Common Core State Standards MAFS.7.RP.1.1
teaches Common Core State Standards CCSS.Math.Content.7.RP.A.1
teaches Common Core State Standards CCSS.Math.Practice.MP5
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This lesson builds on students' understanding of ratios by using a recipe to calculate unit ratios from fractional amounts. Students use ratios and proportional reasoning to correct a cooking error which relates to unit ratios. Students use strategies such as making a table or using multiplicative reasoning. This builds toward finding unit rates and ratios using fractional amounts as well as applying understanding of fraction multiplication and division. Big Ideas: Understand that the relationship between the quantities in a ratio is proportional and can be computed using a ratio table or multiplicative reasoning. Understand how to compute a unit ratio using fractional amounts. Vocabulary: ratio table, multiplicative reasoning, multiplicative inverse, reciprocal Special Materials: Measuring cups and spoons (optional)
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