Greybeard's Ralph

Discovery Page 2

Geometer, get out the protractor and the graph paper with the rectangles you constucted.

  1. Draw a semi-circle centered at point C, starting at point D, and passing through points B, and F.
  2. Draw a quarter circle centered at point D, passing from point F to point H.
  3. Draw a quarter circle centered at point a and passing from point H to point J.

    4. Notice that a spiral shape is starting to form.

     

  4. Extend this spiral by drawing another quarter circle centered at point E, starting at point J.
  5. Extend the spiral again with a quarter circle centered at point G.
  6. Extend the spiral again with a quarter circle centered at point I.

When the group has reached this point, the navigator will inform the teacher who will provide an object from nature for comparison.

Click here to go to Discovery Page 3..

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