Part 1: Introduction 1. Enabling Innovations in Education and Systematizing Their Impact Part 2: Design Research and its Argumentative Grammar 2. The "Compleat" Design Experiment: From Soup to Nuts 3. Instrumentation and Innovation in Design Experiments: Taking the Turn Towards Efficiency 4. Experimenting to Support and Understand Learning Processes 5. Engineering and Design Research: Intersections for Education Research and Design 6. Variation Theory: An Organizing Principle to Guide Design Research in Education 7. Multitier Design Experiments in Mathematics, Science, and Technology Education 8. Balancing Product Design and Theoretical Insights Part 3: Modeling Student Learning During Design Research 9. Research Methods for Alternative Approaches to Transfer: Implications for Design Experiments 10. A Methodology for Documenting Collective Activity Part 4: Modeling Teacher Learning Using Design Research 11. Developing Design Studies in Mathematics Education Professional Development: Studying Teachers' Interpretive Systems 12. Teacher Design Research: An Emerging Paradigm for Teachers' Professional Development Part 5: Modeling Stakeholder Commitments Using Design Research 13.Toward Assessment of Teachers' Receptivity to Change in Singapore: A Case Study 14. A Design Research Approach to Investigating Educational Decision-Making Part 6: Reflecting on Design Research at the Project Level 15. Investigating the Act of Design in Design Research: The Road Taken 16. Illuminating the Braids of Change in a Web-Supported Community: A Design Experiment by Another Name 17. Design Methods for Educational Media to Communicate: When We Cannot Predict What Will Work, Find What Will Not Work Part 7: Reflecting on Design Research at the Program Level 18. Getting to Scale with Innovations that Deeply Restructure How Students Come to Know Mathematics 19. Music Training and Mathematics Achievement: A Multiyear Iterative Project Designed to Enhance Students' Learning 20. Design Experiments and Curriculum Research 21. The Design Principles Database as a Means for Promoting Design-Based Research Part 8: Extending Design Research Methodologically 22. Design Research and the Study of Change: Conceptualizing Individual Growth in Designed Settings 23. Longitudinal Analysis and Interrupted Time Series Designs: Opportunities for the Practice of Design Research 24. Multilevel Models in Design Research: A Case from Mathematics Education 25. Modeling Complexity in Mathematics Education 26. Design-Based Research in Physics Education: A Review Part 9: Tracking the Diffusion of Design Research 27. Design Research and the Diffusion of Innovations