Mather nature

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Mather nature

  1. 1. Mather Nature A Focus on Symmetry in Nature Music: “ Emptiness” by Blu May available under Creative Commons license.
  2. 2. The mathematical sciences particularly exhibit order, symmetry, and limitation; and these are the greatest forms of the beautiful. -Aristotle
  3. 3. Two Types of Symmetry
  4. 4. Bilateral Symmetry
  5. 5. Image by Davekav available through Flikr under Creative Commons license .
  6. 6. Rotational Symmetry
  7. 8. <ul><li>Symmetry in which a shape can be folded along an imaginary line (axis of symmetry) so that opposite sides of the shape match </li></ul>Bilateral Symmetry
  8. 9. <ul><li>Also called reflectional symmetry </li></ul>Bilateral Symmetry Image by Andrew_D_Hurley available through Flikr under Creative Commons license. .
  9. 10. Bilateral Symmetry Images by Adam Pniak, neeZhom, and Tomi Tapio available through Flikr under Creative Commons license. .
  10. 11. <ul><li>Symmetry in which a shape can be rotated around its center point so that it looks like its original self </li></ul>Rotational Symmetry
  11. 12. <ul><li>Also called radial symmetry </li></ul>Rotational Symmetry Image by Desirae Nelson available through Flikr under Creative Commons license. .
  12. 13. Rotational Symmetry Image by Alex Clark, Julie Falk, and Shawn Econo available through Flikr under Creative Commons license. .
  13. 14. Review the two basic types of symmetry: <ul><li>Bilateral Symmetry </li></ul><ul><li>Symmetry in which a shape can be folded along an imaginary line (axis of symmetry) so that opposite sides of the shape match </li></ul><ul><li>Also called reflectional symmetry </li></ul><ul><li>Examples include insects, animals, reflections in ponds </li></ul><ul><li>Rotational Symmetry </li></ul><ul><li>Symmetry in which a shape can be rotated around its center point so that it looks like its original self </li></ul><ul><li>Also called radial symmetry </li></ul><ul><li>Examples include snowflakes, flowers, starfish </li></ul>

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