The newest and most challenging PolyPack
puzzle. Two new pieces provide additional
packing schemes and puzzle challenges that
will hold students' interest. Combined with
previous PolyPack puzzles, this manipulative
yields even more interesting variations on
packing a cube space with polyhedra. With the
same specific gravity feature as PolyPackPlus
puzzle. The PowerPack has 18 pieces in a
clear plastic cube. With activities.
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