Kids explore geometry using seven colored shapes to fill in picture outlines. A tangram is a geometry puzzle using seven special shapes. In Tangram Adventure each puzzle is an animal, object, or environment to explore by arranging the shapes to cover an outline. Each Chip Theory Kids game comes in a robust metal tin and features sturdy magnetic pieces for play, making them intensely travel-friendly. Every game features dozens of puzzles rated across four difficulty levels, so your investment in a high-quality product will return great gameplay as your children grow.