Ratios proportions rates scaling ratios and rates unit rate constant rate of proportionality solving proportions percents discounts mark ups overview of changes significant changes due to the ccssm introduction of ratio and rates in 6 th grade the content of this unit has been combined into three investigation rather than 4. Ratio rates scale factors and proportions problem 11 in comparing bits and pieces presents some fundraising goals and then asks students whether some claims about each fundraising goal are true the aim of problem 11 is to focus student attention on the common mathematical challenge of comparing quantities accurately and fairly. Stanford libraries official online search tool for books media journals databases government documents and more. Connected mathematics comparing and scaling ratio proportion and percent grade 7 teachers guide by glenda lappan james t fey william m fitzgerald susan n friel elizabeth difanis phillips and a great selection of related books art and collectibles available now at abebookscom. Comparing and scaling ratios rates percents proportions name key per investigation 1 ratios and proportions and investigation 2 comparing and scaling rates standards 7rp1 compute unit rates associated with ratios of fractions including ratios of lengths areas and other quantities measured in like or different units
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