Michael Stone, vice president of innovative learning at Public Education Foundation, delivered the opening address at a conference in Torres Vedras, Portugal this week. Mr. Stone was invited to this city, an hour north of Lisbon, so that he could help the community create a school-based digital fabrication lab similar to the 35 labs that Mr. Stone has helped Hamilton County Schools install in public schools across the district. His travel expenses were paid through partnerships with the conference organizers and the US Embassy in Portugal.