Preface -- 1. Reflections on the Future of Instructional Design Research -- Part I. A Global Conversation about Competencies and Challenges for 21st Century -- 2. Competencies Challenges, and Changes: A U.S. Perspective on Preparing 21st Century Teachers and Leaders -- 3. Initiation and Implementation: Changes to Teacher Education in Ireland -- 4. Digital Learnings and Digital Teachers: Challen…