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NAME:_________________________________________ Date: _______________ STUDYGUIDE FOR 6th Grade Math Test on Ratios, Rates, and Proportions Vocabulary: Ratio Equivalent rates Tape diagram Double number line diagram Equivalent ratios Proportion Ratio table Cross Products Rate Direct Variation Unit rate Constant of Proportionality Topics: Know how compare quantities using a ratio Part to part ratios and part to whole ratios Use a tape diagram to solve ratio problems Create and complete a ratio table Find equivalent ratios Compare quantities using rates (labels are important) Use a double number line diagram to find equivalent rates Find a unit rate and use it to determine the better buy Finding equivalent rates Graph ratios and rates from a ratio table Analyze information presented in the graph of a ratio Solve proportions Determine proportional relationships through tables and graphs Identify the constant of proportionality Identify a direct variation equation through tables, graphs, and equations Visit Ms. Costello’s teacher page at www.marsd.org to find more detailed instructions in the Resources – Math 6 tab. The sections below can be used for review. Big Ideas Green Edition – www.bigideasmath.com o o o o 5.1 – Ratios 5.2 – Ratio Tables 5.3 – Rates 5.4 – Comparing and Graphing Ratios Big Ideas Red Edition – www.bigideasmath.com o o o o o 5.1 – Ratios and Rates 5.2 – Proportions 5.3 – Writing Proportions 5.4 – Solving Proportions 5.6 – Direct Variation