Chain Letter

Chain letters may be a thing of the past, but not chain emails! Ask learners to model the number of people receiving a chain email using an equation. Scholars then create multiple representations of the equation and use the models to make predictions. 

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CCSS: Designed
Instructional Ideas

  • Provide each group with a different number of emails each person sends; differentiate by using more and less challenging numbers for the appropriate groups
Classroom Considerations

  • Requires graphing paper, markers, and calculator
  • Assumes previous experience working with exponential problem solving
Pros

  • Provides a complete lesson including a warm-up question, closing question, and homework problems; includes all related answer keys
  • Includes a detailed teacher guide with questioning suggestions
Cons

  • None
Common Core