1. Implementing Assessment for Learning: Theoretical and Practical Issues; Dany Laveault and Linda Allal.- PART I: Assessment Policy Enactment in Education Systems.- 2. Assessment Policy Enactment in Education Systems: A Few Reasons to Be Optimistic; Dany Laveault.- 3. Making Meaning of Assessment Policy in Australia through Teacher Assessment Conversations; Lenore Adie and Jill Willis.- 4. Effective Enactment of Assessment for Learning and Student Diversity in Australia; J. Joy Cumming and Fabienne M. van der Kleij.- 5. Formative Assessment Policy and its Enactment in the Philippines; Patrick Griffin, Louie Cagasan, Esther Care, Alvin Vista, and Fe Nava.- 6. Communication and Collaboration: The Heart of Coherent Policy and Practice in New Zealand Assessment; Jenny Poskitt.- 7. More than Good Intentions: Policy and Assessment for Learning in Scotland; Ernest Spencer and Louise Hayward.- PART II: Professional Development and Collaborative Learning about Assessment.- 8. Building Capacity: Professional Development and Collaborative Learning about Assessment; Dany Laveault.- 9. Implementing Assessment for Learning in Canada: The Challenge of Teacher Professional Development; Christopher DeLuca, Adelina Valiquette, and Don A. Klinger.- 10. Teachers' Professional Development in the Context of Collaborative Research: Toward Practices of Collaborative Assessment for Learning in the Classroom; Lucie Mottier Lopez and Fernando Morales Villabona.- 11. Cooperative Learning about Assessment for Learning; Kari Smith.- 12. Developing Assessment for Learning Practice in a School Cluster: Primary and Secondary Teachers Learning Together; Sue Swaffield, Roszalina Rawi, and Amanda O'Shea.- 13. Implementing High Quality Assessment for Learning: Mapping as a Professional Development Tool for Understanding the What to Learn, Why to Learn It, and How to Learn It; Maria Araceli Ruiz-Primo.- 14. Assessment for Learning: A Framework for Educators' Professional Growth and Evaluation Cycles; Anne Davies, Sandra Herbst, and Ann Sherman.- PART III: Assessment Culture and the Co-Regulation of Learning.- 15. The Co-Regulation of Student Learning in an Assessment for Learning Culture; Linda Allal.- 16. Assessment Culture vs. Testing Culture: The Impact on Assessment for Learning; Menucha Birenbaum.- 17. The Role of Classroom Assessment in Supporting Self-Regulated Learning; Heidi Andrade and Susan M. Brookhart.- 18. Scaffolding Self-Regulated Learning through Self-Assessment and Peer Assessment: Guidelines for Classroom Implementation; Ernesto Panadero, Anders Jonsson, and Jan-Willem Strijbos.- 19. Assessment for Learning: Co-Regulation In and As Student-Teacher Interaction; Margaret Heritage.- 20. Supporting Students' Learning: From Teacher Regulation to Co-Regulation; Louise Bourgeois.