The Tangrams PackThe tangram, known to the Chinese as the Seven Clever Pieces, is a moving puzzle piece, where designs and figures are made using seven geometric shapes known as tans. The tans are traditionally cut from a square and there are two small, one medium, and two large triangles, one parallelogram, and one square. The most popular way of playing with tangrams is to recreate a shape seen only in silhouette. The rules are simple: Match your imagination against