Shower v. Bath

Which requires more water--a bath or a shower? Given some specific criteria, learners attempt to answer the question. A video shows how long it takes to fill a gallon container using a faucet and a shower head. Using that information and the cost per unit of water, scholars compare the cost of taking a shower and a bath. 

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CCSS: Designed
Instructional Ideas

  • Use as a performance task when studying unit rates and ratios
  • Have pupils determine the flow rate of their own faucets and shower heads to use in the calculations
Classroom Considerations

  • Requires a proficiency making calculations with proportions

  • Offers suggestions to extend the lesson for more advanced classes
  • Incorporates a real-life scenario to practice math modeling

  • None
Common Core