Find the age of a fictional sample of rocks using a genuine approach. A well-designed lesson asks young mathematicians to use exponential modeling to analyze half-life. As a project-based learning activity, scholars communicate their analysis through a technical memo.

Concepts

exponential decay, exponential equations, exponential functions

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Additional Tags

math

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Instructional Ideas

• Have your pupils use graphing calculators or online technology to analyze the functions graphically
• Use as a performance task assessment at the conclusion of a unit on exponential functions

Classroom Considerations

• Learners should have a functional understanding of exponential decay and half-life

Pros

• Provides the resource in an editable format
• Teaching notes offer suggestions to minimize complications during the activity

Cons

• Links to student resources and video do not work
• Does not include an answer key or scoring rubric

Common Core

HSF-IF.C.7.a HSF-IF.C.8.a