Stage: 2 Challenge Level: 
If you find it difficult to visualise the
complete dodecahedron, either make one from Polydron or
other plastic shapes, or cut out the net here and make
your own.
Representing. Combinations. Working systematically. Dodecahedra. Addition & subtraction. Investigations. Interactivities. Practical Activity. Multiplication & division. Visualising.
Published September 2001,May 2009.
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