Media--text, images, audio, and video--underwent a transformation from analog to digital formats during the transition from the 20th to the 21st century. Digital media can easily be replicated, downloaded, revised, edited, and reposted, and the implications of this are affecting education, government, entertainment, culture, and society. The transition from atoms (analog media) to bits (digital media) is the first half of a digital revolution. The second half involves the round trip back from bits to atoms to enable the creation of tangible materials based on digital designs. With support from the National Science Foundation (NSF), the MIT Center for Bits and Atoms has developed digital fabrication laboratories, or "Fab Labs," that allow individuals to create almost anything. Fab Labs include devices such as computer-controlled laser cutters and milling machines for assembling 3D structures from 2D parts. Today, computer-controlled fabrication systems that are the microcomputer equivalent of MIT's Fab Labs are emerging. A personal computer-controlled diecutting machine that shapes paper, cardboard, and vinyl can be purchased for less than $500. The advent of personal fabrication systems makes it possible for schools to begin exploring the educational implications of the digital fabrication revolution today. This article discusses the many educational opportunities this technology provides for addressing subject matter content across almost every subject and grade level. Fabrication technologies provide exposure to many mathematical and engineering concepts. Scaffolded practice for students in upper elementary grades and above provides the opportunity to see abstract visualizations--including students' own drawings and sketches on the computer--translated into physical objects, offering an opportunity to explore these ideas at an early age in a very concrete way. (Contains 7 resources.)