Assessing Skin Sensitivity—Touch Discrimination

How do we distinguish between the number of things touching our skin? Scholars explore an interesting lesson through an experiment. They learn that there must be an unstimulated sensory unit between two touches to distinguish them. They analyze data to understand which areas have more nerves than others.

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CCSS: Adaptable
Instructional Ideas

  • Be sure to combine data from all class members so no one student is identified in the results
  • Stress the importance of the dice to make all of the touches random
Classroom Considerations

  • Relies on prior knowledge of the nervous system
Pros

  • Requires simple materials
  • Easily adjusts to high or low levels based on how in depth the lesson goes
Cons

  • None