Ratios and Rates
Learn and practice finding unit rates and solving proportions with interactive resources from GeoGebra.
Middle School
GRADES 6-8Area and Volume of Similar Geometric Figures
Recognize the effect of scale factors or ratios on areas and volumes of similar geometric figures; use formulas to solve number and word problems.
Comparing Quantities with Ratios
Write a ratio or rate to compare two quantities.
Dimensional Analysis
Use dimensional analysis to rename quantities or rates.
Distance in Scale Drawings and Maps
Calculate distances from scale drawings and maps.
Equivalent Ratios
Use reasoning with equivalent ratios to solve number and word problems.
Proportions
Write a proportion to model a word problem; solve proportions.
Ratio or Rate Given a Table or Graph
Determine the ratio or rate of change of a relation given a table or graph.
Ratios and Proportions
Describe the relationship between corresponding terms in two or more numerical patterns or tables of ratios.
Scale Factors
Determine and use scale factors to reduce and enlarge drawings on grids to produce dilations.
Unit Rate
Calculate unit rates in number and word problems, including comparison of unit rates.
Unit Rate and the Constant of Proportionality
Given a proportional relationship represented by tables, graphs, models, or algebraic or verbal descriptions, identify the unit rate (constant of proportionality).
Unit Rates with Fractions
Calculate unit rates of ratios that include fractions to make comparisons in number and word problems.
Variable Rate of Change
Analyze graphs, identify situations, or solve problems with varying rates of change.
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