Tangrams are ancient Chinese puzzles made of a squares divided into seven geometric shapesnPractice comparing, composing, and decomposing shapesnA perfect classroom tool! Includes enough pieces for the whole classn30 Tangram sets in 4 or 6 assorted colors; includes plastic bucket and activity guidenIdeal for ages 5+nThe whole classroom can practice problem solving with this ancient Chinese puzzle. Set of 30 tangrams in 6 assorted colors: red, blue, yellow, green, orange and purple. activity guide and sturdy bucket included.