Unit Rates - Ratios | Proportional Reasoning | Double Number Line - PhET Interactive Simulations

Unit Rates

Unit Rates simulation


  • Ratios
  • Proportional Reasoning
  • Double Number Line
  • Unit Rate

Sample Learning Goals

  • Interpret ratios of mixed units (e.g. $/lb)
  • Define the unit rate and determine a method to calculate it
  • Predict how changing the numerator or denominator of a rate will affect the unit rate
  • Use the double number line to reason about rates and solve real-world problems
  • Develop strategies to use the unit rate to solve problems
  • Compare unit rates between two simultaneous situations

Standards Alignment

Common Core - Math

  • 6.RP.A.3d

  • 6.RP.A.3b

  • 6.RP.A.3

  • 6.RP.A.2

System Requirements


HTML5 simulations can run on iPads, Chromebooks, PC, Mac, and Linux systems.
See full HTML5 system requirements

Version 1.0.19