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In 2.2, we introduced what Unit Rates mean and how to calculate them. In 2.3, we apply Unit Rates to solve problems and then investigate how the same problems could be solved with proportions. The lesson begins with a pictorial model of applying unit rates (concrete) and moves to a computational method (abstract). A mix of whole-class practice and small-group collaboration.
This resource was reviewed using the Curriki Review rubric and received an overall Curriki Review System rating of 3, as of -0001-11-30.
This resource received a 3* rating because it is part of Proportions, Ratios, and Percents, which received a rating of 3-Exemplary in the Curriki Review System and which you can see here: http://www.curriki.org/xwiki/bin/view/Coll_Group_ImplementingAlgebra/ProportionsRatiosandPercents