Heads or Tails

How exactly does touch help us identify items? Students test this question by feeling a coin without moving their fingers and trying to determine if it is heads or tails. They test their accuracy by rubbing their fingers on the coins. They then apply their experience to explain how touch receptors work. 

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CCSS: Adaptable
Additional Tags
Instructional Ideas
  • Discuss if pupils think they could identify one plastic penny in the bag
Classroom Considerations
  • Requires a pouch with a few pennies and one nickel
  • Scholars work in teams of exactly two
  • This resource is only available on an unencrypted HTTP website. It should be fine for general use, but don’t use it to share any personally identifiable information
Pros
  • Includes an extension to identify one nickel in a group of pennies without looking
Cons
  • None
Common Core