Investigating and classifying three dimensional shapes

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Platonic Solids

• Investigating and classifying three dimensional
  shapes

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How many triangular faces?
Tetrahedron
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How many triangular faces?
Octahedron
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How many triangular faces?
Icosahedron
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How many square faces?
Hexahedron
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Water
Air
The Ancient Greek Elements
Earth
Fire
Aether
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The Platonic Solids
How many do we still have to find?
Can we make any more using triangles? Can you
explain why?
Could other face shapes make platonic solids?
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Dual Polyhedra
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Dual Polyhedra