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How much should you trust your memory? According to neuroscientists, every time you remember something, you alter the memory a bit. The more you remember an event, the less accurate the memory becomes.

In this lesson, students use exponential decay to model memory fidelity and debate whether a bad memory is a good thing.

Students will

  • Write exponential decay equations given a description of a relationship
  • Graph exponential decay functions
  • (Optional) Use logs to solve an equation with a variable exponent

Before you begin

Students should have experience identifying relationships that are and are not linear.

Common Core Standards

Content Standards
Mathematical Practices