Difficulties inherent in representing 3-­‐D objects on 2-­‐D media can present barriers to student understanding of mathematical concepts as they relate to solids.  All students, but particularly those who have visual impairments, can benefit from a tactile representation of mathematical objects.   

Because 3-­‐D printers are becoming more commonplace and can generate a wide variety of objects, the ability to create real hands-­‐on objects is no longer out of the question.  The authors will show how tactile 3-­‐D objects can enhance mathematical experiences in Calculus and provide some helpful tips for good quality 3-­‐D printing on Cube and MakerBot Replicator 2.