Book excerpt: What are the most effective methods for teaching writing across grade levels and student populations? What kind of training do teachers need to put research-validated methods into practice? This unique volume combines the latest writing research with clear-cut recommendations for designing high-quality professional development efforts. Prominent authorities describe ways to help teachers succeed by using peer coaching, cross-disciplinary collaboration, lesson study, and other professional development models. All aspects of instruction and assessment are addressed, including high-stakes writing assessments, applications of technology, motivational issues, writing in different genres and subject areas, and teaching struggling writers.