Recursive and Explicit Geometric Formulas

Don't wait for the rebound—grab the resource at the first opportunity. A simple experiment has young mathematicians record the successive rebound heights of dropped balls. The data set represents a geometric sequence, so they write recursive and explicit formulas to model the data.

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CCSS: Designed
Instructional Ideas

  • Have the class brainstorm different applications of geometric sequences in a journal entry
Classroom Considerations

  • Learners should have experience with geometric sequences
  • Experiment requires some materials, including a motion sensor and different types of balls
Pros

  • Scholars will appreciate the hands-on nature of the activity
  • Provides a problem to use as an exit ticket
Cons

  • Lacks student worksheets or recording sheets
Common Core