The 24"x 24" algebra/geometry interactive mat comes with the Algebra Alive Presentation set, the Angle On Geometry set, and the Algebra-Geometry Combination set.  An extra board may be purchased when needed. 

Outfitted with strong magnetic trim, the mat will attach securely to any magnetically receptive surface, such as a classroom dry erase board.  Velcro mounts are also included for mounting to virtually any other surface.  The interactive mat is durable and portable.