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SUMMARY:
Students roll dice to determine the characteristics of one chuckabee.
Class calculates the population's characteristics' averages.
Each group rolls a die to become geographically separated.
Students roll a die three times to see:
1st: Which characteristic "feels" selective pressure (yep... One characteristic at a time)
2nd: How this pressure affects the characteristic (simple math for speed)
3rd: How long the pressure affects the characteristic for (potential amplification of characteristics)
Repeat for 10,000 years. See: Sample Data
Students compare the ending population characteristics to the starting characteristics, and to other groups' ending characteristics by DRAWING them with cm rulers!
I included the end results of my first time doing it. See: Sample Chuckabees
Top: An Individual Chuckabee
Middle: Beginning AverageCharacteristics of Starting Population
Bottom: Ending Average Characteristics of Geographically Isolated Population (Notice the missing tongue? The last number ended up being zero!)