This activity can help students learn the relationship between angles in radians and degrees visually through a PIE! Students should have covered the basic concept of radian measure. So this activity provides the learner a simple and easy to form mental model of switching between degree and radian measure

 This resource is downloadable from Geogebra Tube at: 


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Change the number of parts to see the PIE divided into more parts.


PIE Model for Relationship between Radians and Degrees

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Article ID: 400
Article Category ID: 145
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  • Mathematics
  • GeoGebra
  • Android/iOS including handphones/Tablets/iPads
  • Windows/MacOSX/Linux including Laptops/Desktops
  • ChromeBook Laptops
  • Graphs and transformations
  • measurement and geometry
  • measurement
  • Length
  • 2D Shapes
  • Angles
  • Simulations