Venture into learning about two-dimensional geometric shapes! Sixteen different polygons-including six kinds of triangles; seven kinds of quadrilaterals; plus pentagons, hexagons, and octagons-team up to keep students on their toes matching names to shapes. The helpful guide is the coach who defines and illustrates each polygon. Triangles are special because they have two names, one for their angles and a second for their sides. Group and solitaire games provide interesting variations. Includes 45 dominoes and a hexagonal starting board. For 1-4 players.