The objective of this workshop is to bridge Material Science (encompassing disciplines such as physics, chemistry, biology, and engineering) and Interaction Design (encompassing disciplines, such as computer science, psychology and design). Both communities explore the possibility of developing materials and products, which tightly integrate sensing, actuation and computation, making it possible to e.g. change shape, stiffness, or physical appearance in a fully programmable way. The workshop aims at connecting researchers from these two separate multidisciplinary fields. Although they share some of the overarching goals, they approach the challenges from very different perspectives, and research and education are rarely carried out crossing this divide.