Book excerpt: Teaching in Context provides new evidence from a range of leading scholars showing that teachers become more effective when they work in organizations that support them in comprehensive and coordinated ways. The studies featured in the book suggest an alternative approach to enhancing teacher quality: creating conditions and school structures that facilitate the transmission and sharing of knowledge among teachers, allowing teachers to work together effectively, and capitalizing on what we know about how educators learn and improve. The chapters in this book point to the need to reevaluate current policies for assessing and ensuring teacher effectiveness, and establish the foundation for a more thoughtful, research-informed approach. "What a wonderful collection of diverse voices in this book, all sounding a similar message. Successful schools encourage and support purposeful collaboration among adults and they focus on students. In these schools, teachers feel more rewarded for their efforts and students learn more. Practitioners and researchers understand these findings. Now, let's build education policies that enable them." --John Q. Easton, vice president of programs, Spencer Foundation "Teaching in Context is a call to action--one to which Esther Quintero and her colleagues invite us to imagine, build, nurture, and protect a profession and culture fueled by supportive networks that produce more trust and less churn." --Ralph R. Smith, managing director, Campaign for Grade-Level Reading Esther Quintero is a senior fellow at the Albert Shanker Institute. Andy Hargreaves is the Brennan Chair in Education at Boston College.