Periodic puzzles

Various aspects of symmetry are demonstrated easily using Escher's "Pericdic Drawings. ... "Svmmetrv Aswcts of M. C. Escher's Periodic Drawines." 1.U...
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Periodic Puzzles

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Various aspects of symmetry are demonstrated easily using Escher's "Pericdic Drawings." The static nature of the book may be changed bycopyinga plate ontoa transparent film and cullingout the repeat pattem.Thestudent is now offered s "Periodic Puzzle" of plastic motifs which is solved by recreating the original drawing. Experience, so far u,ith a variety of students iron\ ten years upwards, has been to indicate that this puzzle is novel, and if they are interested in puzzles, challenging.

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1 MncGillnvrv. C.H.. "Svmmetrv Aswcts of M. C. Escher's Periodic Drawines." 1.U.Cr.. 196.5. (This edition does not carry , any "all rights reserved" notice.) Colln H. L. Kennard ~

University of Oueendand Brirbane. AusValia 4067.

772

Journal of Chemical Education