Lesson plan

Understand multiplicative comparison by comparing it to additive comparison

teaches Common Core State Standards 4.OA.A.2 http://corestandards.org/Math/Content/4/OA/A/2
teaches Common Core State Standards MP2 http://corestandards.org/Math/Practice/MP2
teaches Common Core State Standards MP4 http://corestandards.org/Math/Practice/MP4