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Will you get 'cracked' or stay 'intact'? 

This activity transforms a high-stakes game into a data-collection powerhouse. Students track the probability of "messy outcomes" as the denominator changes with every turn.

Teacher Instructions & Setup

  1. The Carton: Start with 12 eggs. 8 get hard-boiled the night before, and 4 remain raw and ready to inspire a laugh. 
  2. The Recording Sheet: As each student "smashes" an egg, the class must update the remaining fractions.

The "Mr. T" Pro-Tips for Teachers

  • Visualizing Equivalence: Use this to show how 4/12 is the same as 1/3. If every third student gets a raw egg, does the math hold up in practice?
  • The "Wait" Factor: Discuss how the probability increases for the next person if a hard-boiled egg is picked, creating a natural lesson on dependent events.
  • Digital Integration: Have students log their "hits" and "misses" in a shared Google Sheet to aggregate data across multiple rounds for a larger sample size.
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2026

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© 2015, 2018, 2025 by Ryan Tindale

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