Cluster 3: Ratio Reasoning
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ratio
a comparison between quantities
tape diagram
a model used to show quantities in a ratio
unit ratio
a ratio expressed as an amount per 1 unit, or 1 per an amount
part-to-part ratio
a ratio that compares a part to a part
part-to-whole ratio
a ratio that compares a part to a whole
multiplicative relationship
a relationship between equivalent ratios when they are scaled up or down using multiplication or division (not addition/subtraction)
ratio table
a table of equivalent ratios
equivalent ratio
ratios that share the same unit ratio
