Book excerpt: Teacher leadership holds great promise for improving the quality of teaching and ensuring student success. But for co-performance of leadership to be effective, teachers and principals need to lead in sync.Leadership coach Jill Harrison Berg guides educators through the process of creating a shared vision for student success and effective teaching, developing a mutual understanding of each person's role in achieving that vision, establishing a schoolwide culture of teacher leadership, and building the trust needed to bring it all together. Leading In Sync: Teacher Leaders and Principals Working Together for Student Learning provides principals, assistant principals, coaches, department leaders, grade-level and content team leaders, mentors, professional development leaders, and in fact all teachers with the strategies and tools needed to: * Examine their own thinking about what constitutes quality teaching. * Tap faculty members who are already leading. * Identify who has the knowledge, skills, and dispositions required for particular leadership roles. * Support leadership collaboration through efficient, effective communication. * Develop trust within the school community. Berg offers thought-provoking context and reflection questions so that educators can examine their own unique settings; real-world examples of teachers and principals co-performing leadership to improve student success; and dozens of strategies, tools, and templates to facilitate leading in sync.