Population Drop

Take a look at population decline from a different perspective. Using an exponential model of the population of a city, pupils show that it is equivalent to two other models. Scholars interpret the decay factor in the equations with respect to the time intervals represented. 

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CCSS: Designed
Instructional Ideas

  • Lead a discussion on the importance of units to completely understand the differences in the formulas
  • Allow learners to use calculators 
Classroom Considerations

  • The class should be familiar with equivalent exponential expressions
Pros

  • Provides questions to gain further understanding of class members' thinking
  • Includes suggestions for other tasks to extend the concepts
Cons

  • None