# Ratios and Rates

Learn and practice finding unit rates and solving proportions with interactive resources from GeoGebra.

## Middle School

### Area 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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